Hardware

Adapters and Hubs

Adapters (Product Page)

WCP offers a versatile selection of adapters designed to seamlessly connect and integrate common FRC components. This includes hex adapters for shaft conversions, inserts that strengthen and support your 3D printed parts, and 3/8" hex bore adapters for adapting shafts to various mechanisms. Whether you're customizing a drivetrain or prototyping a new subsystem, these adapters help bridge the gap between standard and custom parts with ease and reliability.

8mm to 1/2" Hex Adapter

Hex Bore Adapter

SplineXS to 1/2" Rounded Hex

3D Print Inserts

These 3D print adapters allow teams to confidently integrate custom-printed parts into their direct-drive gearbox designs. Available in both 1/2" Hex and 8mm SplineXS profiles, they provide a durable interface between motor shafts and printed components—eliminating the risk of stripping out soft or unsupported bores. Perfect for intakes, rollers, or custom gears, these inserts make it easy to combine strength and flexibility in your printed designs.

1/2" Hex to 3D Print Adapter

8mm SplineXS to 3D Print Adapter

MotionX Hubs (Product Page)

MotionX Hubs provide torque transfer for various items like wheels, sprockets, gears, and shafts. Enjoy the variety of available hub options such as 1-1/8" round or SplineXL OD, along with with 1/2" hex & .159" bores. And of course, all 1/2" hex bore hubs are clocked!

Round MotionX Hubs

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

1/2" Hex ID x 1-1/8" OD MotionX Hub

SplineXL MotionX Hubs

Available Sizes:

• .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)

.159" ID x SplineXL OD MotionX Hub

1/2" Hex ID x SplineXL OD MotionX Hub

SplineXL ID x 1-1/2" OD MotionX Hub

Ball Bearings (Product Page)

Bearings constrain relative motion and reduce friction between moving parts.

WestCoast Products offers all the bearings most commonly used by FIRST ® teams, and also replacement bearings for all the "odd sized" bearings used in WCP gearboxes and assemblies.

Rounded Hex Bearings

Rounded Hex Bearings are designed to work with shafts that have a rounded hex profile, providing smoother rotation and improved alignment. Perfect for reducing friction in drivetrains, intakes, and other FRC mechanisms, these bearings make it easy to keep things running reliably under load.

Rounded Hex Bearing

ID	OD	Flange Type
.302" (1/4" ThunderSquare)	0.875"	Flanged
10.25mm (3/8" Rounded Hex)	0.875"	Flanged
13.75mm (1/2" Rounded Hex)	1.125"	Flanged

Flanged Bearings

Flanged Bearings are a go-to solution for supporting rotating shafts while keeping everything securely in place. The built-in flange prevents the bearing from slipping through mounting holes, making them perfect for drivetrains, gearboxes, and any rotating assemblies in FRC robots.

Flanged Bearing

ID	OD
0.250"	0.500", 0.625"
0.375"	0.875", 1.125"
0.375" Hex, 0.500", 0.500" Hex	1.125"
0.750"	1.375"

Radial Bearings

Radial Bearings are built to support smooth, low-friction rotation in your FRC robot’s moving parts. Designed to handle loads perpendicular to the shaft, they’re ideal for high-speed applications and mechanisms with constant motion.

Radial Bearing

ID	OD
0.188"	0.500"
0.250"	0.375", 0.500", 0.625", 0.750"
0.375", 0.500"	0.875"
0.500"	1.125"

X-Contact Bearings

X-Contact Bearings are built to handle complex loads from multiple directions, making them ideal for rotating joints like arms and turrets. Their compact design and smooth operation help improve accuracy and reliability in high-performance robotics applications.

X-Contact Bearing (Sealed)

X-Contact Bearing (Non-Sealed)

ID	OD
1"	1.375"
1.5"	1.875"
1.75"	2.125"
2"	2.5"
2.5"	3", 3.125"
3"*	3.5"
3.5"*	4"
4"	4.5"
4.5"	5"
6"	6.5"
8"	8.5"
10"	10.5"

*3" & 3.5" X-Contact bearings available in Sealed and Non-Sealed versions.

Metric Bearings

Metric Bearings offer a precise, reliable fit for components designed around metric measurements. Whether you're working with imported parts or custom designs, these bearings provide smooth rotation and easy integration into your FRC robot. Available in a variety of sizes to match your build perfectly.

Metric Bearing

ID	OD	Flange Type
6mm	12mm	Radial
8mm	16mm	Radial, Flanged
12mm	21mm	Radial
12mm	24mm	Flanged
15mm	24mm	Radial
15mm	28mm	Radial
17mm	23mm	Radial
17mm	26mm	Radial
25mm	37mm	Radial
30mm	42mm	Flanged
35mm	47mm	Radial, Flanged
80mm	100mm	Radial

Specialty Bearings

Thrust bearings are perfect for handling axial forces in mechanisms like climbers or elevators, while needle bearings are ideal for high-load, low-profile applications where space is tight. Whether you're managing heavy loads or tight tolerances, these bearings offer smooth, reliable motion.

Thrust Bearing

Needle Bearing

ID	OD	Bearing Type
8mm	16mm	Thrust
0.750"	1"	Needle Bearing

Bushings (Product Page)

Bushings are lightweight, low-friction components that take the place of ball bearings in low-load, low speed scenarios. While they’re probably not suitable for flywheels, intake rollers, and drivetrains, we believe they’re the perfect fit for pneumatically-actuated joints and some low-load rotary joints, like simple arms and pivoting structures. We like bushings because they are:

• Lightweight, which adds up in weight savings when replacing bearings with bushings

• Extremely cheap, sometimes only 25% the cost of an equivalent bearing

• Toleranced for a clean fit with commonly-used FRC stock

Bronze Bushings

Radial Bronze Bushing

Hex OD Bronze Bushing

ID	OD	Flange Type
0.250"	0.500"	Flanged
0.375"	.500" Hex, 0.625"	Flanged
10.25mm	0.625"	Flanged
0.500"	0.750"	Flanged
13.75mm	0.750"	Flanged
0.750"	0.875"	Flanged
1.000"	1.125"	Flanged

Press Fit Drill Bushings

Press-fit drill bushings are commonly inserted into jigs and fixtures to guide drill bits and ensure accurate hole placement. They are a popular choice for applications where precision and repeatability are important, such as tread-cutting.

Sizes Available:

• .159" Drill

• .196" Drill

• .25" Drill

Linear Bearings (Product Page)

These specialty bearings slide axially along a round shaft or tube’s length in order to achieve simple linear motion. Use a set of linear bearings to replace complex radial bearing stack setups and build sliding mechanisms with the strength and rigidity of FRC linear elevators for a fraction of the complexity!

While our linear bearings work with any shaft or tube material, we recommend thin-wall steel in heavy-use subsystems to decrease wear on the shaft while still maintaining strength and keeping weight low. Alternatively, having replacement shafts or tubes prepared for heavy-use subsystems utilizing linear bearings helps alleviate this problem.

ID	OD
0.375"	0.625"
0.500"	0.875"
1"	1.5625"

Shaft Stock (Product Page)

WCP offers several different lightweight shaft stock options made from both 6061 aluminum (for tube axles) and 7075 T6 Aluminum (for high-strength hex shafts handling torsional loads). These shaft lengths are correctly toleranced such that they fit perfectly through bearings and hubs, without extra work.

Rounded Hex

Round

Hex Lite

ID	OD
Solid	3/8" Hex
Solid	1/2" Hex
0.159"	3/8" Rounded Hex
0.159"	1/2" Rounded Hex
0.159"	3/8" Hex Lite
0.159"	1/2" Hex Lite
0.196"	3/8" Round
0.196"	1/2" Round
1/2" Hex	0.75" Round
0.625"	0.75" Round
0.875"	1" Round
1.125"	1.25" Round

Output Shafts (Product Page)

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.

• 7075-T6 Aluminum 1/2" Rounded Hex

• Black anodized

• 4", 6", or 8" length

• Option of a 1/2" rounded end to fit 1/2" round bearings

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)

Spacers and Standoffs

Aluminum Spacers (Product Page)

Our aluminum spacers are offered in a wide variety of lengths in order to speed up your spacer-making process, or even remove the manufacturing step altogether! Each spacer is made of ⅜” OD aluminum with a 0.196” diameter hole through its center, acting as a clearance hole for #10 hardware and a tap hole for ¼” hardware.

3/8" OD

1/2" OD

OD	ID	Length
3/8"	0.196"	1/8", 1/4", 3/8", 7/16" 1/2", 5/8", 3/4", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-3/4", 1-7/8", 2", 2-1/4", 2-1/2", 2-3/4", 3"
1/2"	0.196"	2"

Standoffs (Product Page)

Standoffs are like spacers, but the internal hole is threaded in order for a machine screw to thread into them for a strong and tight fit. Aluminum standoffs can be used to connect important components in your robot, and our variety of sizes gives you everything you need to make small gearboxes all the way up to large shooter hoods! The aluminum standoffs:

• Are tapped 10-32 on both ends

• Come in lengths of 2”, 3”, 4”, 5”, 6”, 7”, and 8”

• Have a ⅜” hex profile so that users can use a wrench to hold the standoff while tightening screws

• 3/8" Hex made from 6061-T6 material

• 1/2" Hex made from 7075-T6 material

3/8" Hex OD

1/2" Hex OD

OD	ID	Length
3/8" Hex	#10-32 Tapped	2", 3", 4", 5", 6", 7", 8"
1/2" Rounded Hex	#10-32 Tapped	2-1/2", 3-1/2", 4", 4-1/2"