The SplineXL Tubing can be used in a variety of applications, including feeder or intake systems.

• Easy to machine profiles

• Simple and lightweight interior dead axle assemblies

• Torque transfer available via star profile

Stay prepared for any assembly task with these compact SAE and Metric Allen Key Sets. Perfect for tightening or loosening fasteners on the go, each set includes a wide range of sizes in a convenient, portable format.

The 3/8" Ratcheting Combination Wrench is a versatile tool ideal for tightening #10-32 nuts and working with 3/8" hex hardware. Whether you're securing adjusting bumper cones or handling other drivetrain components, the ratcheting action makes assembly and maintenance faster and easier, even in tight spaces.

An essential addition to any FRC toolkit, this adjustable wrench offers a strong, adjustable grip on a wide range of fasteners, making it ideal for quick fixes and on-the-fly adjustments during events. Its smooth adjustment mechanism and sturdy build allow you to tackle everything from drivetrain bolts to pit setup hardware.

#25 and #35 chain tools are designed specifically with FIRST® Robotics Competition teams in mind. These handy tools makes it easy to break and assemble chain, and are also sized to assemble chain in place on your robot.

Available in three options:

Chain Breaker Pin Sets

Replacement Pin Sets are available for each of the Chain Breakers as well.

Torque Wrenches & Bits

Torque Wrenches

Take the guesswork out of tightening bolts with our Pre-Set Torque Wrenches. From Kraken motor terminals to #10 hardware, our wrenches make it easy to get the job done right—quickly, accurately, and with total confidence.

Available in:

• 0.6 Nm Torque Wrench (CAN Terminals)

• 0.9 Nm Torque Wrench (Power Terminals)

• 2.5 Nm Torque Wrench (#10-32 Bolts)

Torx Bits

Built for the job, our T8 and T10 Torx Bits pair perfectly with the Pre-Set Torque Wrenches to tackle Kraken motor CAN and power terminals with confidence. No stripping, no slipping—just clean, reliable installs every time.

Available in:

• T8 for CAN Terminals

• T10 for Power Terminals

The #9 drill bit is ideal for creating clearance holes for #10 hardware, ensuring smooth bolt fitment without thread engagement. Commonly used on materials like aluminum, polycarbonate, and sheet metal, it’s a must-have for accurate mechanical assembly and fabrication in both prototyping and competition builds.

These tools include a #21 drill bit, #10-32 tap, and tap wrench, everything you need to create threaded holes for #10-32 hardware. Ideal for use in aluminum, polycarbonate, and other common FRC materials, this combo ensures clean threads and precise alignment for strong, reliable fastener installation.

This Drill Bit Set includes a range of common sizes, giving you the flexibility to drill clean, precise holes in materials like aluminum, polycarbonate, and wood. Perfect for prototyping, assembly, and general use. A great and essential addition to any FRC toolbox.

The Step Bit is designed to safely and accurately enlarge existing holes to a variety of diameters. Ideal for use on materials like aluminum, plastic, and sheet metal, it offers smooth, controlled cutting without the need to switch between multiple drill bits.

A versatile cutting tool for on-the-go use, the hacksaw is perfect for trimming aluminum tubing, PVC pipe, wood, and other common build materials. Lightweight and easy to handle, it’s a must-have for quick adjustments and custom cuts during prototyping or at competition.

Metal files are ideal for smoothing edges, deburring holes, and fine-tuning parts during fabrication. Perfect for removing small amounts of material from aluminum, steel, and other metals, they offer precision and control when a clean finish matters. An essential tool for dialing in fit and finish on custom components.

These heavy-duty scissors are built to handle tough materials with ease. Perfect for cutting bumper fabric, surgical tubing, and plastic sheets. With sharp, durable blades and a comfortable grip, they’re a reliable tool for precision cuts in both the shop and at competition.

Flush cutters are ideal for clean, precise cuts on wire, zip ties, and small plastic components. Their sharp, low-profile jaws allow for close trimming in tight spaces. Making them a go-to tool for electrical work, cable management, and pit-side quick fixes.

Wire strippers are designed for cleanly and consistently removing insulation from wires, making them essential for electrical work and motor wiring. With precision-cutting blades and multiple gauge options, they ensure fast, accurate stripping every time.

The deburring tool is designed to quickly and safely remove burrs and sharp edges from drilled holes, cut tubing, and machined parts. Ideal for creating clean finishes on aluminum, plastic, and other materials.

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Welcome to our FRC Build System Guide. We will be updating this continuously and will have a majority of our content up to date before the 2025 Build Season!

Belts, Chain & Gears

Belts, chains, and gears are the basis of motion in FRC build systems. These components are responsible for transmitting power from your motors to your desired output, giving you control over the speed, torque, and precision of your robot's movements. Incorporating them into your control system can significantly impact your robot's performance and design.

Gearboxes

WCP offers a range of plug and play gearboxes to suit various FRC applications. Whether you need high torque for climbing or precise control for manipulating objects, there's a WCP gearbox to match your needs.

Hardware & Tools

WCP offers the essential components that teams would need during the FRC Build Season. With components ranging from CNC machining and 3D Printers to help teams rapidly iterate designs, to all the hardware needed to watch your designs become a reality.

Electronics & Pneumatics

Explore our selection of electronic components, featuring the Kraken X60 that delivers precise movement and sensors for capturing critical data. Intricate control and power distribution are made easy with our diverse selection of wiring solutions. For applications demanding a powerful alternative, explore our pneumatics components.

System & Structure

From robust WCP motion systems that aid your robot's movement to versatile framing materials, we offer everything you need to create a strong and functional machine. Explore our selection of robot systems and high-quality framing materials to design your own custom chassis.

Wheels & Hubs

WCP offers a wide range of traction wheels to optimize grip and performance for your specific application. Whether you need rugged treads for your drive base or smooth, high-precision rollers for roller and shooter systems, we have the wheels to keep you moving.

Shop Accessories

From heavy-duty SuperPits for demanding environments to mobile and customizable SuperCarts, we offer a wide range of accessories to optimize your workspace, no matter your experience level.

#10-32 hardware is a standard size used across a wide range of WCP products, ideal for securing brackets, structural components, and mechanisms in FRC builds. Available in BHCS, SHCS, PHCS, and shoulder bolt variants, this hardware offers reliable fastening solutions for both precision assemblies and high-load applications.

Vibra-TITE thread locker helps prevent bolts and screws from loosening due to vibration and movement, essential for maintaining secure assemblies in high-impact applications like drivetrains, intakes, and gearboxes. A small amount goes a long way in keeping your hardware tight and your robot reliable.

Plastic washers are available in 1/2" hex and 3/8" hex sizes, making them perfect for spacing components on matching shafts. Lightweight and low-friction, they’re ideal for fine-tuning spacing and keeping assemblies aligned in FRC mechanisms.

Metal washers are ideal for use as spacers or for distributing the load of a bolt head or nut over a larger surface area. Durable and versatile, they help protect components, prevent pull-through, and ensure more secure fastening in structural and mechanical assemblies.

Zip ties are a must-have for cable management, quick fixes, and organizing components on your robot. Strong, lightweight, and easy to use, they’re perfect for bundling wires, securing hardware, and keeping your build clean and competition-ready.

Flexible electrical wire is ideal for creating clean, efficient wiring runs on your robot. Its pliability makes routing through tight spaces easy, while maintaining strong conductivity and reliable connections for motors, sensors, and control systems.

Aluminum tubing is a core structural element in FRC robot design, favored for its strength, stiffness, and lightweight properties. Its hollow profile provides excellent rigidity compared to flat plate construction, making it ideal for frames, arms, and drivetrains.

We offer a variety of aluminum punched tubing made from strong, lightweight 6061-T6 aluminum. Featuring 0.50" hole spacing, this tubing is designed for quick, consistent mounting of hardware, brackets, and structural components, making it easy to prototype and assemble. The punched holes provide flexibility in design without the need for additional drilling.

Our punched aluminum angle and C-channel are made from high-strength 6061-T6 aluminum and feature 0.50" hole spacing for easy integration with common FRC hardware. These profiles provide added rigidity and mounting flexibility, making them ideal for framing, supports, and structural reinforcement. Lightweight yet durable, they’re perfect for quickly assembling reliable subsystems without extra drilling or machining.

CF tubing has a wide range of applications for FRC robots, including lightweight roller systems and structural stiffeners. Our selection includes round tubing, as well as 1x1 and 2x1 options to suit your needs.

Polycarbonate is a great solution for making simple brackets and sponsor panels. These 0.5mm and 1.5mm thick sheets of smoked polycarbonate will come in 3’ x 6’ sheets. The 1.5mm thick sheets are great for thinner brackets and the 0.5mm thick sheets are great for sponsor panels and can even be cut with a pair of scissors.

SRPP (Self-Reinforced Polypropylene), Compared to polycarbonate, our SRPP is stiffer and significantly more impact resistant, making it useful for systems like intakes, end effectors, or other areas exposed to frequent contact. It’s also lighter than polycarbonate, which can help with overall weight management.

#10 Hole Sizing

• All #10-32 hardware

• All holes tapped to #10-32

• Can use 3/16" rivets

1/2" Pitch Spacing

• Holes placed on 1/2" center to center spacing for tubing

• Holes placed on 1/2" center to center spacing for gussets

Rounded Hex Shafting

• Available in 3/8" hex or 1/2" hex

  • 10.25mm or 13.75mm rounded corner hex

• Round bearing in matching size for ease of assembly

• 0.159" hole through center

  • Tap size for #10-32 threads

  • Close fit for #8-32 hardware

8mm SplineXS

• Torque transfer capability similar to 1/2" hex

• 0.159" Hole , #10-32 tapped

• 8mm OD allows for readily available bearing support

• Standardized Spline

SplineXL Tubing

• Easy to machine profiles

• Simple and lightweight interior dead axle assemblies

• Torque transfer available via star profile

MotionX Pattern

The MotionX Pattern combines the industry standards found across a variety of common FRC products into a single pattern. Allowing for a better user experience and removing the hassle of teams needing to buy extra hardware.

Sprockets

Sprockets are profiled wheels with teeth that mesh with chain to transfer motion. Our sprockets are custom manufactured out of high strength aluminum, black anodized for superior performance. Plate sprockets include WCP MotionX pattern!

Depending on the size, the Plate Sprockets will now have the MotionX Pattern and as many additional holes as possible following the 1" pitch.

Available Sizes:

• 24T, 30T, 36T, 42T, 48T, 54T, 60T, 66T, 72T, 84T

Depending on the size, the Plate Sprockets will now have the MotionX Pattern and as many additional holes as possible following the 1" pitch.

Available Sizes:

• 18T, 24T, 30T, 36T, 42T, 48T, 54T, 60T, 66T, 72T, 84T

Gears

• Compatible bore size for the Spline Tube

• Made from 7075-T6 aluminum with a Teflon infused ceramic coating

• Overall width 0.375"

• Compatible bore size for the Spline Tube

• Made from 4140 Steel with black oxide coating.

• Overall width 0.375"

• Gears bigger than a 46T will be pocketed to a .090" Web Thickness.

WCP offers the steel hex bore gears with the integrated MotionX pattern. On average each pocketed gear is 50% lighter than the unpocketed version!

• 20DP with 14.5 degree pressure angle

• MotionX pattern for use on MotionX Accessories

• Overall width .0375"

• Pocketed to a .090" Web Thickness

Roller System

WCP has designed a new line of Roller System products that can be seamlessly the integrated into designs and used in SplineXL mechanisms. Giving teams a modular system to create almost any kind of roller. Available in high-strength black anodized aluminum or lightweight plastic, the Roller System enables you to easily create the solution for your roller needs.

Got a 1/2" Hex that you need to put a plate sprocket on? No problem. Need to mount a 64-tooth gear to your Mecanum Wheel? We can do that. Whatever your need, these hubs will help you integrate everything together in your SplineXL systems seamlessly.

Most of the wheels and sprockets that teams typically use don't take piloting into account. We made sure that everything pilots correctly... every time. Wheels, hubs, gears, sprockets… they all work together.

Available Sizes:

• 1/2" Hex ID x 1-1/8" OD MotionX Hub (Aluminum, #10-32 Clearance)

• .159" ID x SplineXL OD MotionX Hub (Aluminum, #10-32 Clearance)

• 1/2" Hex ID x SplineXL OD MotionX Hub (Aluminum, #10-32 Clearance)

• 1/2" Hex ID x SplineXL OD MotionX Hub (Aluminum, #10-32 Tapped)

• 1/2" Hex ID x SplineXL ID MotionX Hub (Aluminum, #10-32 Tapped)

• SplineXL ID x 1-1/2" OD MotionX Hub (Aluminum, #10-32 Tapped)

Roller Hubs specifically designed to be used with the SplineXL Tubing. The SplineXL hubs are used in robotics to create high-torque roller intake systems, conveyor systems, and other mechanisms.

Available Sizes:

• SplineXL ID Aluminum Roller Hub (5/16-18 Tapped Bore)

• SplineXL OD Aluminum Roller Hub (5/16-18 Tapped Bore)

The WCP Bearing Blocks provide a simple and easy solution to mounting bearings to a tube. Perfect for the "West Coast" style drivetrain, these bearing blocks provide multiple ways to accomplish the same goal: adding a slot to the tube for the more customizable Sliding Bearing Blocks, or simply clamping around the tube with the easier Clamping Bearing Blocks.

Available Sizes:

• 2" Bearing Block (Centered, SplineXL Bore)

• 2" Bearing Block (.06" Offset, SplineXL Bore)

• 2.5" Bearing Block (Centered, SplineXL Bore)

• 2.5" Bearing Block (.06" Offset, SplineXL Bore)

Spline

8mm SplineXS

• Torque transfer capability similar to 1/2" hex

• 0.159" Hole , #10-32 tapped

• 8mm OD allows for readily available bearing support

• Standardized Spline

SplineXL Tubing

• Easy to machine profiles

• Simple and lightweight interior dead axle assemblies

• Torque transfer available via star profile

MotionX Pattern

The MotionX Pattern combines the industry standards found across a variety of common FRC products into a single pattern. Allowing for a better user experience and removing the hassle of teams needing to buy extra hardware.

Hole Pattern

Web Sizing

The web sizing is designed to have bolts sit tangent along the webbing and allowing for extra torque transfer through the sprocket spokes.

The Robonauts' Everybot is an affordable, competitive, and elegant robot intended to play the FIRST Robotics Competition challenge. Everybot can be built with nothing but basic tools and items found in either the kit of parts or purchased from your local hardware store or online FRC retailers. The dimensions in this year's Everybot document are nominal dimensions, unless otherwise noted. The Everybot was built using only basic shop tools and was designed to work with a large range of machining tolerance.

Reveal Video

Everybot 2023 - Intake (KIT-0051)

Sold by WCP

Kit of Parts

Not Included

A Competitive Concept (aka CC) is a robot specifically engineered to be a valuable asset to any alliance; strives to be the most well-rounded robot on the team able to do everything. The WestCoast Products CC robot is designed with the intent of showing teams what is possible for high-level play and what some of the top 8 seeds will accomplish throughout a match.

Key Features

• WCP SwerveX - Corner Mount, Flipped Modules

  • Geared at 16.5 fps

  • 30" x 30" base

• GreyT Cascade Elevator - Single Stage

  • 48" Height

• Single Stage Horizontal Elevator

  • WCP Elevator Clamping Blocks

  • 12" of extension

• Arm driven by WCP SS Rotation Gearbox

Key Features

• GreyT Shooter (9.5")

  • 4" WCP Solid Roller Wheels (60A)

• GreyT Turret (11" ID)

  • Limelight for tracking

• Single Stage GreyT Telescope

  • Level 2 climb

• Belt powered conveyor

• Arm driven by WCP SS Rotation Gearbox

Key Features

• GreyT Shooter (7")

  • 4" WCP Solid Roller Wheels (60A)

• GreyT Turret (7" ID)

  • Limelight for tracking

• GreyT Cascade Elevator - Single Stage

• Belt powered conveyor

• 2" Vector Intake Wheels

Key Features

• GreyT Cascade Elevator - 2 Stage

  • Reaches all levels for Cargo

  • Level 1+2 for Hatch Panels

• 8" Pneumatic Wheels

• 4" Flex Wheels for intake

2016-2018 Competitive Concepts

Framing Components

The following structural components are perfect for customizing and strengthening your KitBot build. Aluminum tubing provides a lightweight yet rigid frame foundation, while polycarbonate sheets are ideal for protective panels and mounting surfaces. Shaft stock ensures smooth and reliable motion for rotating elements, and a variety of gussets make it easy to assemble strong, stable joints. Together, these components offer flexibility, durability, and the essential building blocks for expanding your robot beyond the base design.

Parts Available:

• 1" x 1" x 0.0625" Aluminum Tube Stock with Hole Pattern (47")

• 1" x 1" x 0.125" Aluminum Tube Stock with Hole Pattern (47")

• 1/8" Clear Polycarbonate Sheet (24" x 48")

• 1/8" Gray Tinted Polycarbonate Sheet (24" x 48")

• T Gusset, Sharp Corner (#10, 0.098" Thick)

• T Gusset (#10, 0.098" Thick)

• .500" OD Hex Stock (36")

• .159" ID x .500" OD Rounded Hex Stock (36")

Fasteners

Mechanical Fasteners

A reliable selection of mechanical fasteners is essential for building a strong and stable KitBot. This includes #10-32 BHCS and SHCS bolts for structural connections, paired with matching #10-32 nuts for secure assembly. Rivets offer a lightweight, permanent solution for fastening gussets and sheet metal, together, these fasteners provide the strength and reliability needed for a competition-ready robot frame.

Parts Available:

• #10-32 x 1.500" L BHCS (Steel, Black Oxide)

• #10-32 x .500" L SHCS (Steel, Black Oxide)

• #10-32 x 1.750" L SHCS (Steel, Black Oxide)

• #10-32 Thin Lock Nut (100-Pack)

• 3/16" Blind Rivet (.125" - .250" Grip Length, Aluminum)

Electrical Fasteners

For cable management and accessory mounting, zip ties provide a fast, effective way to bundle wires and keep electronics organized. Hook and loop tape is another versatile solution, ideal for securing batteries, control modules, and other components that may need to be accessed or removed easily during pit work. Together, these fasteners support both mechanical strength and electrical cleanliness, ensuring the KitBot stays competition-ready.

Parts Available:

• 10" Black Ziptie (.140" Width)

• Hook and Loop Tape (Black, 2" WD, 10FT)

Motion Components

Motion components such as timing belts, pulleys, flex wheels, and bearings are essential for building smooth, reliable, and efficient mechanisms. Timing belts and pulleys provide precise, low-slip power transmission. Making them ideal for intakes, conveyors, and drivetrains. Flex wheels offer excellent grip and shock absorption, making them perfect for handling game pieces and compliant mechanisms.

Parts Available:

• 130t x 15mm Wide Timing Belt (HTD 5mm)

• 24t x 15mm Wide Aluminum Pulley (HTD 5mm, 1/2" Hex Bore)

• 4" OD x 1" Wide Straight Flex Wheel (1-1/4" Round Stretch, 30A)

• 4" OD x 1" Wide Straight Flex Wheel (1-1/4" Round Stretch, 45A)

• 4" OD x 1" Wide Straight Flex Wheel (1-1/4" Round Stretch, 60A)

Misc Hardware

Miscellaneous hardware includes a variety of specialized components that help adapt, space, and secure parts throughout your robot. Plastic spacers are perfect for aligning components on shafts without adding unnecessary weight. The 8mm Key to 1/2" Hex Adapter and 2mm Key provide simple solutions for converting keyed shafts to hex drive systems. The 1/2" Hex to 3D Print Adapter enables easy integration of custom-printed parts onto standard hex shafts. Rounding out the section, the 1/2" Hex Clamping Shaft Collar securely locks components in place without damaging the shaft.

Parts Available:

• 2" WD x 1/2" Hex ID x 3/4" OD Plastic Spacer

• 1/8" WD x 1/2" Hex ID x 3/4" OD Plastic Spacer

• 8mm Key to 1/2" Hex Adapter

• 1/2" Hex to 3D Print Adapter (1/4" WD)

• 2mm Key

• 1/2" Hex Clamping Shaft Collar

Elevators can be used to lift objects high above the robot without extending reach and center of gravity outside the robot the way an arm does. It can also lift the robot as well!

• Single chain lifting for reduced weight

• Dual motor options

• Kraken X60 support

• Bearings on all surfaces

• Configurable to be as tall or wide as needed

• Minimal plates, making the assembly much simpler and more robust

• Stackable stages, allowing for 3+ stage elevator assembly

• Simplified assembly with new Cascade Pulley Blocks

The Greyt Turret is one of the simplest and most accessible turreting systems on the market. Use the Greyt Turret to aim a shooter or other mechanism in a different direction than your robot is facing. Combine with vision to get automated targeting, or control manually to point a mechanism wherever you'd like!

• 7.5” diameter hole allows for game pieces and other objects to travel through the turret

• Pre-roller add-on kit makes it easy to feed game pieces up into the turret in a controlled fashion

The GreyT Shooter (9.5”) is the next iteration of the GreyT Shooter. Originally designed for the 2020 FRC Game: Infinite Recharge. The new GreyT Shooter accepts 7.5”, 8”, 8.5”, 9”, and 9.5” distances from a 4” wheel to the hood.

• Easy adjustability of compression

• Compatible with Kraken X60, VersaPlanetaries

• Option for Direct Drive, Belt Drive, or Gear Drive

• Gear Drive option allows teams to really fine tune RPM during testing

• Compatible with GreyT Turret

• New Top Roller plate allows teams to alter the spin of the game piece and shoot further

The Greyt Turret is one of the simplest and most accessible turreting systems on the market. Use the Greyt Turret to aim a shooter or other mechanism in a different direction than your robot is facing. Combine with vision to get automated targeting, or control manually to point a mechanism wherever you'd like!

• 11” diameter hole allows for game pieces and other objects to travel through the turret

• Compatible with VersaPlanetary

• Compatible with GreyT Shooter (9.5”)

• Compatible with thin section bearings

1 stage, 2 stage, 3 stage, 4. Extend it, retract it, lock it, score! The Greyt Telescope kit lets you make a linear telescoping system with 0 effort. Any length, up to 4 stages, and all the power you need from Kraken X60 motors. Lock your telescope in place with either the ratchet and pawl or the WCP friction brake. Use it for fast and secure climbs, or any other fine-controlled linear mechanisms. Elevate your gameplay with the Greyt Telescope today! Some cool features:

• Works with .060" and .125" wall tubing

• Integrated Brake or Ratchet

• 1 to 4 stages available

• All bearings, no sliders

• No CNC machining required

Sprocket & Chain Basics

Common Terms

Calculating Center to Center

When deciding the placement and spacing of your sprocket and chain it is important to keep in mind that the Center to Center distance can be a fully custom measurement to ensure compatibility in your system, or can be decided through a pre-determined chain length.

The basic rule of thumb when deciding on a custom Center to Center distance is that it should be anywhere from 30-50 times the pitch of the desired chain for optimal usage and should not exceed 80 times the pitch.

Proper Tension

The examples below highlight different levels of chain tension, including chains that are too loose, too tight, and the recommended amount of slack for reliable performance in any subsystem.

Adding Chain Tensioner

Implementing our chain tensioners into your system is a an easy task due to them having the necessary clearance holes for the roller pins. Use the chain breaker tool to partially remove the pin from the chain and lay your selected chain tensioner in place, then simply reset the pin back into place.

Idlers

Idlers are yet another way to ensure proper tension is present in a chain and sprocket system as they can be placed either on inside or outside of the chain loop to provide more contact with the sprocket and decrease slack. Adding an idler to the chain loop does not affect the ratio and can actually benefit performance if placed near the driving sprocket as it allows for more meshing.

Recommended Applications

#25 Chain

• Intakes

• Conveyors

• Turrets

#25H Chain

• Drivetrains (wheels under 6")

• Intakes

• Conveyors

• Turrets

• Elevators

#35 Chain

• Drivetrains (wheels 6" and up)

• Wrists/arms

Load Rating

#25 Sprockets and Chain

Using this popular combination to transfer power or torque is a great alternative from other solutions due to the light footprint it has on your robot.

• Plate sprockets are 6061-T6 aluminum

• Hub sprockets are 7075-T6 aluminum

Roller Chain in 10 foot lengths for use with any #25 sprocket

• Available in #25 Standard and #25H

• ANSI standard

• Master Link included with 10 ft purchase

• Chain Break Tools available to easily separate chain

• Additional Master and Half Links sold in packs of 5

*12T and 14T sprockets are only available in steel. The 16T is available in steel and aluminum.

Depending on the size, the Plate Sprockets will now have the MotionX Pattern and as many additional holes as possible following the 1" pitch.

#35 Sprockets and Chain

Using this combination to transfer power or torque is a great alternative from the #25 solutions as it can sustain double the working load and tensile strength.

• Plate sprockets are 6061-T6 aluminum

• Hub sprockets are 7075-T6 aluminum

Roller Chain in 10 foot lengths for use with any #35 sprocket

• ANSI standard

• Master Link included with 10 ft purchase

• Chain Break Tools available to easily separate chain

• Additional Master and Half Links sold in packs of 5

Depending on the size, the Plate Sprockets will now have the MotionX Pattern and as many additional holes as possible following the 1" pitch.

Belts and Pulleys Basics

Common Terms

Calculating Center to Center

How to Use WCP 's Belt Distance Calculator

WCP now offers a built-in calculator to provide all our customers with piece of mind when designing with belts and pulleys. If you are interested in viewing our calculator or knowing how to use it, see below for more information.

You will need a few pieces of information when using the WCP Belt Calculator:

1. Belt pitch to be used

   1. 3mm for GT2/GT3 belts

   2. 5mm for HTD Belts

2. Number of teeth for both pulleys

3. Approximate distance between centers of the two pulleys

The Output from the calculator will give you the belt center to center as well as the tooth count for the closet belt to the values entered. It will also give you the information for one belt size higher and lower.

Center to Center Equations

The equation below shows the minimum center distance that should be used.

The equation below shows the center distance for equally sized pulleys.

The examples below are places where a looser belt may be beneficial. Subtracting center distance can help reduce the overall load of the system which in turn reduces motor load and power consumption.

• First Stage Reduction: -0.000 to -0.003

• Intake Rollers: -0.015 to -0.020

• Conveyor System: -0.015" to -0.020"

Recommended Applications

GT2 Belts

• First stage reductions

• Motor to flywheel

• Low load

HTD Belts:

• Intake or conveyor systems

• Drivetrains

• Medium load

GT2 timing belts are intended for lower load applications such as the first reduction in a gearbox, or motor to flywheel. GT2 belts use a smaller pitch than HTD belts, which means you can use larger reductions in those tight fit areas of your robot.

GT2 Pulleys

GT2 Belts

HTD Belts and Pulleys

Synchronous timing belts are lighter and more efficient than chain. Once set up, they require no tensioning or adjustment. The HTD profile is ideal for FIRST ® Robotics Competition applications - its deep tooth profile allows it to better handle high reversing loads, such as those found in an FIRST ® Robotics Competition drivetrain.

Belts, chains, and gears are the basis of motion in FRC build systems. These components are responsible for transmitting power from your motors to your desired output, giving you control over the speed, torque, and precision of your robot's movements. Incorporating them into your control system can significantly impact your robot's performance and design.

Gearboxes

Electronics

GreyT

Wheels

System & Structure

Shop Accessories

Master Links Compatibility

How to use Master Links

Master Links are used to form a continuous loop without the need to use a chain breaker tool and have proved to be an efficient quick-release system during repairs and replacement jobs. Using these Master Links is an easy task and can be done by anyone with a pair of pliers.

1. Slide the Master Link into position on the chain.

2. Place the Outer Plate on top of the pins far enough as to expose the grooves on the two pins.

3. Place the clip on the first pin like shown above.

4. Slide the clip towards the second pin using pliers and ensure that the clip is secure .

WCP offers two types of chain tensions, the Spartan style and the TurnBuckle style.

WCP offers a range of plug and play gearboxes to suit various FRC applications. Whether you need high torque for climbing or precise control for manipulating objects, there's a WCP gearbox to match your needs.

WCP offers the essential components that teams would need during the FRC Build Season. With components ranging from CNC machining and 3D Printers to help teams rapidly iterate designs, to all the hardware needed to watch your designs become a reality.

WCP’s newest generation of the swerve drive module, designed from the ground up to utilize the powerful Kraken X60 brushless motor to improve performance and remove complexity. This new design more versatile than our previous modules, and truly makes omnidirectional driving as simple as plug and play.

• Supports 4" OD x 2" wide wheels

• 3 variants available: Standard, Inverted, and Thin

  • Corner and Tube Mount versions available for each option

• On axis encoder mounting

• Aluminum and Steel gears available for all gears

• Single bolt removal for wheel swap

• Motors easily replaced without module disassembly

• Accepts common motors

• Less parts than previous versions

• No belts in any of the modules

Standard

Inverted

Thin

Weight Comparison

Tube Mount

Corner Mount

Drive Ratios

The X gear ratios are designed to be a consistent spread across all Swerve X2 configs. All X Gear Ratios come with 3 pinions on the same pitch to get the spread.

Accessories

Readily available accessories to elevate your Swerve X2 module build.

Mounting Hardware

• WCP Swerve X (Bottom Support Plate)

• WCP Swerve X (Top Support Plate)

Wheel Components

• Swerve X2 Aluminum Wheel

• Swerve X2 Colson Wheel

• Swerve X2 Molded Wheel

Tread

• 4" OD x 2" WD Punched Tread

• 4" OD x 2" WD Molded Tread (High-Grip)

The FIRST in Michigan (FIM) Swerve X2i Bundle brings together top-of-the-line components from WCP and CTR Electronics, providing everything you need to build a powerful, reliable swerve drive system. This kit is specifically designed to complement the FIM Swerve Video Guide, making it easier than ever to get your robot up and running.

What’s Inside the Kit?

• WCP Components:

  • Swerve X2i: Designed from the ground up to provide performance, reliability, and easier maintenance.

  • Pre-punched tubing: Provides easy upgrade paths with multiple mounting options, making it adaptable to a variety of setups.

  • Wire: Flexible electrical wire is perfect for wiring robots cleanly and effectively. Use it with motor controllers or other key power transfer connections.

• CTR Electronics Components:

  • CANcoders: Trusted sensors for accurate rotation sensing and feedback.

  • Pigeon 2.0: A positioning control system that ensures your robot stays on course, even during complex maneuvers

WCP’s newest generation of the compact swerve drive module, designed from the ground up to utilize the powerful Kraken X60 brushless motor for drive, and the compact Kraken X44 brushless motor for steering. This new design is more versatile than our previous compact module, and strikes an ideal balance between performance, size, weight, and cost.

• Less hardware required for assembly.

• Module accept multiple motors: Kraken X60 - Kraken X44 - NEO - Vortex.

• 2 variants available: Standard and Thin

• Wide drive base footprint.

• Optimizes the robot's layout for efficient drivetrain component layouts.

• Lightweight and compact design.

• On axis encoder mounting with the new WCP ThroughBore Powered by CANcoder

Standard (X2S)

Thin (X2St)

Weight Comparison

Drive Ratios

Accessories

Readily available accessories to elevate your Swerve X2S module build.

Wheel Components

The newest generation of our swerve drive module, designed from the ground up to utilize the powerful Kraken X60 brushless motor to improve performance and remove complexity. This new design is smaller, lighter, and more versatile than our previous module, and truly makes omnidirectional driving as simple as plug and play.

• Modules accept multiple motors: Kraken X60 - 775pro - 550 motors.

• Natively supports CAN and Mag Encoder

• Alignment holes to zero module.

• Clearance holes so motors can be removed without disassembling gearbox.

• Easy to install encoder locations

• Flipped and Non Flipped option

• Wheel height is the same regardless of configuration, so it is possible to mix and match modules on robot.

Tube Mount

Corner Mount

Weight Comparison

Tube Mount

Corner Mount

Drive Ratios

The X gear ratios are designed to be a consistent spread across all Swerve X configs. All X Gear Ratios come with 3 pinions on the same pitch to get the spread.

Swerve X Gear Ratios (Standard)

Swerve X Gear Ratios (Flipped, Gears Below)

Accessories

Readily available accessories to elevate your Swerve X module build.

Mounting Hardware

• WCP Swerve X (Bottom Support Plate)

• WCP Swerve X (Top Support Plate)

Wheel Components

• Swerve X Colson Wheel Hub

• Swerve X Colson Wheel

• 4" OD x 1.5" WD Punched Tread

WCP’s newest generation of the swerve drive module, designed from the ground up to utilize the powerful Kraken X60 brushless motor to improve performance and remove complexity. This new design is smaller, lighter, and more versatile than our previous module, and truly makes omnidirectional driving as simple as plug and play.

• Less hardware required for assembly.

• Module accept multiple motors: Kraken X60 - 775pro - 550 motors.

• Smaller and lighter 2.5” ID X-contact bearing.

• Wide drive base footprint.

• Optimizes the robot's layout for efficient drivetrain component layouts.

• Lightweight and compact design.

• Alignment holes to zero module.

Weight Comparison

Drive Ratios

The X gear ratios are designed to be a consistent spread across all Swerve XS configs. All X Gear Ratios come with 3 pinions on the same pitch to get the spread.

Accessories

Readily available accessories to complete your Swerve XS module build.

• 3" OD x 1" WD Punched Tread

Single Speed Gearboxes

WCP Single Stage Gearbox is designed to be a replacement for some of our legacy gearboxes. This gearbox is compact, lightweight and can service as input to planetary gearboxes.

• 1:1 → 7.75:1 reduction

• Spur Gearbox

• Multi motor support

• Hex or Spline Socket

Gear Ratio Options

*7.75:1 Gear Ratio is only available for the Kraken X60 configurations.

FRC designers want to do the most in the least amount of space. One of our solutions to this is the WCP SS Flipped Gearbox. Combine the WCP SS Flipped Gearbox with any WCP bearing block that has a 2" center to center and unleash the power and variability to make your perfect drivetrain!

• Flipped motors opens up 1.8” per side compared to WCP SS Gearbox, over 3.5” saved in the width of your drivetrain

• Compact form factor gives you more room for control system components, subsystem sections, and game pieces

• A wide range of reductions from 5:1 to 15.5:1

• Compatible with wheels from 3.25” to 6” in diameter

• Accepts Kraken X60 or any other 2" bolt circle with a maximum diameter of 2.5" (~64mm)

Gear Ratio Options

The tables below list possible gear ratios and associated free speeds for the SS Flipped Gearbox.

The column headers show the gear sets for the first stage. The row headers show the gear sets used for the second stage. All speeds are in ft/s.

Two Speed Gearboxes

Sometimes you just need to use 3 motors on each side of the drivetrain, but the available options either don't provide the reduction you're looking for, or aren't designed for the tried and true West Coast Drive mounting style. After having this problem ourselves, we decided to solve it with the WCP Flipped Gearbox. Add a WCP Bearing Block and you'll be good to go. We made the WCP Flipped Gearbox so that you can make any drivetrain you want.

• Accepts 3 CIMs, Mini CIMs, Kraken X60s, or any other 2" bolt circle with a maximum diameter of 2.5" (~64mm)

• Over 440 different gear ratio options

• Interchangeable with your other COTS WCD gearboxes

A 2 stage gearbox designed around the new friction brake. This gearbox is perfect for arms or turrets and many other situations where an axis needs to rotate.

• Ideal for arms and other low revolution speed mechanisms

• Ability to get more reduction by mounting a VersaPlanetary Gearbox

• Fixed or adjustable mounting options

Gear Ratios

The Friction Brake allows you to aid your PID controller in holding an arm, elevator or another subsystem in place or even completely hold your mechanism in place without any motor power!

• Easy integration with your design

• 1.875" and 2" bolt pattern compatibility

• Compatible with the Rotation SS Gearbox and WCP Bearing Block

Ratchet Plate (1/2" Hex)

The Ratchet Plate is designed to replace the traditional 1/2" hex wrench while also giving teams an easy and direct mounting experience with the integrated #10 hardware clearance holes.

These nifty little linear servos act like pneumatic air cylinders, but are powered by an electronic servo instead of compressed air! This means that not only do they provide reliable linear motion, but also have the added bonus of being able to extend to any position in its range of motion, not just full in or full out!

• Available in 50, 100, and 140 mm stroke lengths

• 35:1, 63:1, and 150:1 gear ratios

• Servo powered actuator does not take up a PDP slot

• Mounts like a pneumatic air cylinder

Accessories

WCP offers several different premade output shaft options made from 7075-T6 Aluminum. These shafts are correctly toleranced such that they fit perfectly through bearings and hubs, without extra work.

Output Grooved Shafts

• 4" Long x 1/2" Rounded Hex Shaft (1/2" Snapring Groove)

• 6" Long x 1/2" Rounded Hex Shaft (1/2" Snapring Groove)

• 8" Long x 1/2" Rounded Hex Shaft (1/2" Snapring Groove)

Output Rounded End Grooved Shafts

• 4" Long x 1/2" Rounded Hex Shaft (1/2" Round, 1/2" Snapring Groove)

• 6" Long x 1/2" Rounded Hex Shaft (1/2" Round, 1/2" Snapring Groove)

• 8" Long x 1/2" Rounded Hex Shaft (1/2" Round, 1/2" Snapring Groove)

Basic Terms

Basic Equations

Gear Basics

Gears can be used to transfer motion from a spinning object to an object you want to rotate (ex: another shaft, a wheel, an arm, etc.). In addition to transferring motion, gears can be used to change the speed and torque inside a mechanism.

Changing Speed & Torque

You can change the speed and torque in a gear train by using different sized gears. The size ratio of two meshed gears will determine how much the speed and torque are changed. If two meshed gears are the same size, then speed and torque will remain the same.

Reducing Speed / Increasing Torque

In order to reduce speed and increase torque you must drive a gear with a smaller gear. For example, a 12T gear is driving an 84T gear. Since the 84T gear is 7x larger than the 12T gear driving it, the speed will be reduced by 7x while the torque will be increased by 7x.

Increasing Speed / Reducing Torque

In order to increase speed and reduce torque you must drive a gear with a larger gear. For example, a 48T gear is driving a 24T gear. Since the 24T gear is 2x smaller than the 48T gear driving it, the speed will be increased by 2x while the torque will be reduced by 2x.

Direction Of Rotation

Gears can also be used to change the direction of rotation. Gears spin in the opposite direction of the gear driving it. For example, if you have a gear train with two gears, the direction of rotation will be the opposite of the input. However, if you have three gears in a drivetrain, the direction of rotation at the output will be the same as the input.

When To Use Gears

There are pros and cons to using gears, so it's important to carefully consider your application before electing to use them in your design.

Here are some examples of applications when you should use gears:

• The items you need to transfer motion to are close together. Generally speaking, gears are better at transferring motion between items that are close together.

• You need a large speed reduction in a small space. Gears allow you to make a large amount of reduction in a relatively small space compared to timing belts and chain.

• You need something to spin in opposite directions. Timing belts and chain will always spin in the same direction. So if you need two shafts to spin in opposite directions, gears are one of the easiest ways to do it.

When NOT To Use Gears

• You need to transfer motion to something far away. Using a long gear train to transfer motion to something far away usually weighs more than just using timing belts or chain.

• High shock loads. Shock loads are extremely high spikes in torque. These can be caused by a number of things like an arm crashing into something. Shock loads can produce spikes in torque many times higher than the mechanism would normally see. since gears transfer motion through a single tooth, they do not handle shock loads as well as timing belts or chain.

Calculating Center-to-Center Distance

Extra Spacing

Sometimes you want to add extra spacing to center-to-center distance. The benefit of adding extra spacing to a center-to-center distance is to reduce gear wear and help the gearbox run smoother. However, adding extra spacing does increase backlash in the system.

Extra distance to add for center to center:

• Exact Spacing: +0.000"

• Standard Spacing: +.0015-.003"

Tooth Spacing

Another way to think about gear spacing is the sum of the teeth in the gear ratio. You can change the gears in any gear ratio, as long as the sum of the two gears remains the same. For example:

In the table above, you can see some examples of possible gears you can use on a gear ratio with "84 Tooth Spacing". As gear teeth are added or removed from the driving gear, the inverse is added to the driven gear, which keeps the sum at 84T.

20DP Gears

All 20DP WCP gears have a 14.5 degree pressure angle, and have the same 3/8" face width. This means it is easy to change gears in your design to find the perfect gear ratio without having to redesign your gearbox.

• 3/8" or 1/2" hex bores for use on hex or rounded hex shafts

• Made from 7075-T6 aluminum with a Teflon infused ceramic coating

• Overall width 0.500"

*14T Gear is also available on a 16T Center Distance, 16T Gear is also available on a 18T Center Distance.

• 3/8" or 1/2" hex bores for use on hex or rounded hex shafts

• Made from 4140 Steel with black nitride coating.

• Overall width 0.500"

*14T Gear is also available on a 16T Center Distance, 16T Gear is also available on a 18T Center Distance.

WCP sells pocketed versions of steel and aluminum gears for maximum weight savings. On average each pocketed gear is 50% lighter than the unpocketed version! Pocketed gears have been tested for strength and durability for years on teams such as 254, 973, 1323, and 971. Fun fact, Team 971’s 2016 robot saved about two pounds of weight just by lightening their gears! This was enough for them to add their hanging claw at the Championships!

• 3/8" or 1/2" hex bores for use on hex shafts

• 20DP with 14.5 degree pressure angle

• Overall width 0.500"

• Pocketed to a .090" Web Thickness

WCP offers the steel hex bore gears with the integrated MotionX pattern. On average each pocketed gear is 50% lighter than the unpocketed version!

• 20DP with 14.5 degree pressure angle

• MotionX pattern for use on MotionX Accessories

• Overall width .0375"

• Pocketed to a .090" Web Thickness

• Compatible bore size for the Spline Tube

• Made from 7075-T6 aluminum with a Teflon infused ceramic coating

• Overall width 0.375"

• Compatible bore size for the Spline Tube

• Made from 4140 Steel with black oxide coating.

• Overall width 0.375"

• Gears bigger than a 46T will be pocketed to a .090" Web Thickness.

Motor Pinions are smaller gears that are design to fit on a motor shaft. These gears use a wider 3/4" face width to help strengthen the gear tooth.

• Includes gear and mounting hardware

• 14.5° pressure angle

• Mounts to various sized FRC motors

• Mounts to other motors or gearboxes with similar shaft sizes

Addendum Modified Gears

Addendum modifying gears is when you change the tooth profile to reduce undercut, which strengthens the tooth. When gears are addendum modified, it changes its Pitch Diameter, which changes the gear spacing. For example, an addendum modified 11T gear could be on 12T spacing. This means that the gear acts like an 11T gear when doing ratio calculations, but acts like a 12T gear when doing center-to-center calculations.

WCP sells a number of Motor Pinions that are addendum modified. This allows teams to change the tooth count on a motor pinion without having to change the corresponding gear.

The table above demonstrates how you can use addendum modified motor pinions to change gear ratios without having to change the Driven Gear.

The "standard" swerve drive bevel gear - now with black nitride coating for superior performance.

As time passes and experience grows within the FRC community, previously complicated build techniques are becoming more commonplace. Coaxial swerve drives, once attempted by only the most elite of teams, are now a well documented and accessible solution. Most coaxial swerve drives utilize a bevel gear pair as part of their design. After surveying FRC teams, we found almost everyone is using the same gear.

WCP now offers multiple Bevel Gears that are great for custom swerve modules!

12DP

These 15T 12DP bevel gears are a powerful solution for changing the direction of motion in compact, high-torque applications. Perfect for custom drivetrains and right-angle gearboxes, they deliver smooth, efficient power transfer between intersecting shafts. Precision machined and built to handle tough loads, they’re a great choice when performance and reliability matter most.

1.25 Module

The 1.25 Module Bevel Gear offers a strong balance of torque capacity and compact size, making it perfect for FRC drivetrains and right-angle power transmission. Its precision-machined teeth ensure smooth, reliable engagement, even under load. Ideal for custom gearboxes and mechanisms where space is limited but performance can’t be compromised, this gear delivers consistent results when it matters most.

1.5 Module

The 1.5 Module Bevel Gear is designed for heavy-duty applications requiring smooth, efficient power transfer. With larger, more robust teeth, this gear handles higher torque loads while maintaining reliable meshing and long-term durability. Ideal for drivetrains and high-load mechanisms, it’s a strong choice for teams building powerful and precise right-angle gear systems.

Specialty Gears

WestCoast Products offers an assortment of gear sizes, chosen to provide the greatest versatility for gearing options to users. Our sizes were specifically chosen to provide a wide spread of of ratio options useful for FIRST ® Robotics Competition designers. Larger size gears are available so designers can accomplish their entire reduction in a single stage where otherwise they would have used more than one!

All gears are 20 DP with 14.5 degree pressure angle, and have the same overall width -- this means it is easy to interchange WCP gears in your design to change a ratio without modifying the overall system; true versatility.

Want to make your own turret and arm gears on your router, but you're struggling to find a gear that'll drive it? Try our 10T 10 DP gear. 10 DP gears have large enough radii that teams can easily manufacture their own 10 DP gears. The 10T 10 DP gear is made of 4140 steel and is meant to drive 10 DP gears teams manufacture on their own.

As an added bonus, you can find STEP files of sample 10 DP gears under the "CAD Files" tab. These models are meant to be a starting point teams can use for their own custom gears. These models feature the true involute gear profile rather than an approximation that many CAD programs generate. This means that your custom manufactured gear will run smoother when meshing with our 10T 10 DP gear.

These gears have a Diametral Pitch of 32, which allows for reductions in smaller areas. They are also pocketed for maximum weight savings. Great for lighter load applications and smaller robots!

• Diametrical Pitch: 32

• Pressure Angle: 20°

• Face Width: 7/16"

• Overall Width: 1/2"

These gear racks are great for powered linear motion! This will give you the positional control that pneumatics can't.

• Comes in 10DP & 20DP options

• Made from 6061-T6 Aluminum

• #10-32 Clearance Holes

• Both come in 35.5" lengths which allows for infinite stacking