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Vevor UK£32.90Visit shop VEVOR Linear Guide Rail Set, SBR20 800mm, 2 PCS 31.5 in/800 mm SBR20 Guide Rails and 4 PCS SBR20UU Slide Blocks, Linear Rails and Bearings Kit for Automated Machines DIY Project CNC Router Machines
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The VEVOR SBR20-800mm Linear Guide Rail Set is an essential upgrade for engineers, hobbyists, and DIY enthusiasts building CNC machines, 3D printers, or automated milling setups. It provides precise, smooth linear motion through its high-durability steel rails and four SBR20UU slide blocks, ensuring your machinery operates without stuttering under load. While it offers industrial-grade reliability and corrosion resistance, users should note that the system requires precise frame alignment during installation to achieve maximum accuracy.
| Model Part Number | SBR20-C 800L |
|---|---|
| Brand | VEVOR |
Each rail in the set is 800 mm in length.
Yes, the steel rails can be cut to a shorter length using an abrasive metal cutting saw, though you must deburr the cut end to ensure the block can slide on and off safely.
The shaft diameter is exactly 20 mm.
This set includes four SBR20UU slide blocks.
Yes, the rails come with pre-drilled holes to facilitate easier mounting onto your machine frame.
Clean the rail surface thoroughly of dust or debris and re-apply a light lubricant.
The rails are likely not perfectly parallel; loosen the mounting bolts, realign the rails using a precision square, and retighten.
Ensure the rail is mounted to a rigid base and verify that all mounting bolts are tightened to specification.
To set up your VEVOR linear rails, begin by mounting the rails to your machine frame using high-quality hardware, ensuring the surface is level and rigid. Slide the SBR20UU blocks onto the rails carefully to avoid damaging the internal bearings. Once installed, apply a light, high-quality machine oil to the rails to maintain smooth operation. Compatibility-wise, the 20mm diameter allows for easy integration with standard SBR20 hardware. For care, regularly wipe the rails clean of metal shavings or dust, as debris can cause wear on the block bushings over time. Periodically check the mounting bolts for tightness to prevent vibrations from loosening the rail during high-speed operations.
