> For the complete documentation index, see [llms.txt](https://docs.wcproducts.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wcproducts.com/welcome/system-and-structure/system-and-structure.md).

# System & Structure

<table data-view="cards"><thead><tr><th>Product</th><th>Useful Sections</th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td>Polycord Pulleys</td><td><a href="/spaces/KUJBJjkLfLKS5I099asI/pages/5d0JUvj8ZQAb51eQHcNt">Single Pulley</a><br><a href="/spaces/KUJBJjkLfLKS5I099asI/pages/6321OsY8s0L3giVqlLAs">Double Pulley</a></td><td><a href="/spaces/KUJBJjkLfLKS5I099asI">/spaces/KUJBJjkLfLKS5I099asI</a></td><td><a href="/files/emOZhr8o3EeHwL8eXiMv">/files/emOZhr8o3EeHwL8eXiMv</a></td></tr><tr><td>Elevator Bearing Blocks</td><td><p><a href="/spaces/vpVKG4kVLnIlJUReyy4N/pages/0gKNVdFMsBgeKX7W1fjz">Inline Bearing Block</a></p><p><a href="/spaces/vpVKG4kVLnIlJUReyy4N/pages/TPTJ1p1oZkiu6sKyms1T">Clamping Block </a></p><p><a href="/spaces/vpVKG4kVLnIlJUReyy4N/pages/0iqcQr4xZcv8vkWLy7tC">Inline Clamping Block</a></p></td><td><a href="/spaces/vpVKG4kVLnIlJUReyy4N">/spaces/vpVKG4kVLnIlJUReyy4N</a></td><td><a href="/files/NAzSQrXaV7X3LYGnly0j">/files/NAzSQrXaV7X3LYGnly0j</a></td></tr><tr><td>Plate Bearing Block</td><td><a href="/spaces/aCUXl6Mi3soRp6UuJUop/pages/enOSFCsfxWlrvYNRbPVm">Kit Contents</a><br><a href="/spaces/aCUXl6Mi3soRp6UuJUop/pages/oWozf3l1glOmHPlTG0zl">Getting Started</a></td><td><a href="/spaces/aCUXl6Mi3soRp6UuJUop">/spaces/aCUXl6Mi3soRp6UuJUop</a></td><td><a href="/files/PZODrOEc3auhglGVapmo">/files/PZODrOEc3auhglGVapmo</a></td></tr><tr><td>Tube Plugs</td><td><a href="/spaces/V88rOhyRqwyr1rYHFvV1/pages/5Gd8aak94voO9aHFv03Y#compatibility-chart">Compatibility Chart</a><br><a href="/spaces/V88rOhyRqwyr1rYHFvV1/pages/oWozf3l1glOmHPlTG0zl#hole-spacing">Hole Spacing</a></td><td><a href="/spaces/V88rOhyRqwyr1rYHFvV1">/spaces/V88rOhyRqwyr1rYHFvV1</a></td><td><a href="/files/yeyETNVhJjnlblKd7MpU">/files/yeyETNVhJjnlblKd7MpU</a></td></tr><tr><td>Bearing Blocks</td><td><p><a href="/spaces/Ah7kNj2G3b1j9BJvKAXk/pages/5Gd8aak94voO9aHFv03Y">SplineXL Bearing Blocks</a></p><p><a href="/spaces/Ah7kNj2G3b1j9BJvKAXk/pages/0xsUL5ytCxYuZro6K7PD">Sliding Bearing Blocks</a></p></td><td><a href="/spaces/Ah7kNj2G3b1j9BJvKAXk">/spaces/Ah7kNj2G3b1j9BJvKAXk</a></td><td><a href="/files/DmfSHfELjf4EZSe5Hzb4">/files/DmfSHfELjf4EZSe5Hzb4</a></td></tr><tr><td>Cone Bumper Mount</td><td><p><a href="/spaces/Wyu8pN6IMvso0Nj9fRtj/pages/BoJXDQEd9XTCJkVZiMvf">Kit Contents</a></p><p><a href="/spaces/Wyu8pN6IMvso0Nj9fRtj/pages/qV0827AQpD3YvuSu5Tmi">Installation</a></p><p><a href="/spaces/Wyu8pN6IMvso0Nj9fRtj/pages/LYoz6oeo5kgvjXb1UWj7">Bumper Styles</a></p></td><td><a href="/spaces/Wyu8pN6IMvso0Nj9fRtj">/spaces/Wyu8pN6IMvso0Nj9fRtj</a></td><td><a href="/files/PQEJS1QDhxHflNiMLvPV">/files/PQEJS1QDhxHflNiMLvPV</a></td></tr><tr><td>Gear Rack</td><td><p><a href="/spaces/fDGowgkDKOqJgFZ3iD7g/pages/5Gd8aak94voO9aHFv03Y#10dp-gear-rack">10DP</a></p><p><a href="/spaces/fDGowgkDKOqJgFZ3iD7g/pages/5Gd8aak94voO9aHFv03Y#id-20dp-gear-rack">20DP</a></p></td><td><a href="/spaces/fDGowgkDKOqJgFZ3iD7g">/spaces/fDGowgkDKOqJgFZ3iD7g</a></td><td><a href="/files/Dio8wtASk9LsgTYjN441">/files/Dio8wtASk9LsgTYjN441</a></td></tr><tr><td>Battery Mount (Vertical)</td><td><p><a href="/spaces/PjuCknLElB0fSLHDc41L/pages/HFBS6VGBB1Fk5rCoNAAP">Individual Components</a></p><p><a href="/spaces/PjuCknLElB0fSLHDc41L/pages/oWozf3l1glOmHPlTG0zl">Getting Started</a></p></td><td><a href="/spaces/PjuCknLElB0fSLHDc41L">/spaces/PjuCknLElB0fSLHDc41L</a></td><td><a href="/files/YO6A8T0jOMxxAwvNwLd2">/files/YO6A8T0jOMxxAwvNwLd2</a></td></tr><tr><td>Stub Rollers</td><td><a href="/spaces/ZFpeyLzrE29cgyWyQDsF/pages/5Gd8aak94voO9aHFv03Y">Configurations</a><br><a href="/spaces/ZFpeyLzrE29cgyWyQDsF/pages/oWozf3l1glOmHPlTG0zl">Getting Started</a></td><td><a href="/spaces/ZFpeyLzrE29cgyWyQDsF">/spaces/ZFpeyLzrE29cgyWyQDsF</a></td><td><a href="/files/r3fh3Xm9je1i18ueLDUA">/files/r3fh3Xm9je1i18ueLDUA</a></td></tr></tbody></table>


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