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Two long silver rails with four silver blocks mounted on them

VEVOR

VEVOR SBR20-C 2200mm Linear Motion Set 2 Rails 4 Blocks

SKU CH-K4SH-DAMB0

Two 2200 mm carbon-steel rails with four SBR20UU blocks deliver 882 N dynamic and 1370 N static load per block for precise linear motion

  • TypeOther Appliances
  • Width5.91
  • Smooth motion for CNC builds with four SBR20UU blocks on two 2200 mm rails
  • Rust-resistant chrome-plated carbon steel and aluminium for long service life
  • Low-friction ball bearings give quiet, labour-saving travel
  • Precise 20 mm shaft and 35 mm hole spacing ensure repeatable accuracy
  • Ready to mount with 50 × 48 × 39 mm blocks and 96 mm wide rails

SBR20 2200 mm Linear Motion Set

This set provides two 2200 mm SBR20 guide rails and four SBR20UU slide blocks for long-travel linear motion. It suits DIY CNC builds and automated equipment requiring extended, supported shafts. Each block delivers 882 N dynamic and 1370 N static load capacity. The carbon steel shafts and aluminum blocks use a chrome-plated finish for corrosion resistance.

Upgrade From Shorter Or Unsupported Rails

The 2200 mm length replaces shorter rails when travel beyond one metre is needed without adding butt joints. Supported aluminium bases with 35 mm mounting hole spacing simplify alignment compared with raw shaft installations. The jump is worth it when a single-piece span reduces assembly time and eliminates joint misalignment on machines such as large-format routers or plasma tables.

Sustained Load Behaviour

Chrome-plated carbon steel shafts and ball-bearing blocks maintain low friction over repeated cycles, keeping sliding smooth during long production runs. The 50 x 48 x 39 mm blocks distribute load across the 20 mm shaft diameter, limiting deflection under continuous 882 N dynamic loading. Heat buildup remains low because rolling contact replaces sliding friction, preserving precision during extended operation.

Highlights

  • Smooth motion for CNC builds with four SBR20UU blocks on two 2200 mm rails
  • Rust-resistant chrome-plated carbon steel and aluminium for long service life
  • Low-friction ball bearings give quiet, labour-saving travel
  • Precise 20 mm shaft and 35 mm hole spacing ensure repeatable accuracy
  • Ready to mount with 50 × 48 × 39 mm blocks and 96 mm wide rails

Specifications

TypeOther Appliances
Width5.91

Questions about this item

What mounting-hole spacing do the 2200 mm SBR20 rails use?

The rails have mounting holes spaced 35 mm apart in both directions, matching the 1.4 in specification.

How are the SBR20UU blocks installed on the rails, and what step is often missed?

Slide each block onto the rail from an end; the step people miss is keeping the ball bearings seated while aligning the block’s 50 × 48 × 39 mm body with the rail.

What maintenance will the chrome-plated carbon-steel rails and aluminum blocks need later?

Periodically wipe the 20 mm shafts clean and apply light machine oil to keep the 882 N dynamic load rating smooth.

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