SC20UU Linear Bearing Block for 20mm Shaft

Weight	0.255 kg

The SC20UU is a standard-length mounted linear bearing block for smooth 20 mm round shafts.
• Model & fit: SC20UU, nominal 20 mm shaft diameter.
• Housing: standard bearing block with mounting points.
• Reference size: 54 × 50 × 41 mm (W × L × H).
• Quantity: one complete bearing block, not a multipack.

SKU: 26-11343 Category: Linear Bearings Brand: ZIVON

$5.04

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Description

The SC20UU is a housed linear bearing for smooth, nominal 20 mm round shafts. Its mounted bearing block is used to guide sliding components in round-rod linear motion systems, including CNC mechanisms, 3D printer projects and custom automation assemblies.

Key features

Mounting style: housed block with a fixed mounting interface
Designed for smooth round shafts of the stated nominal diameter
Standard format for compact bearing positions

Technical specifications

Model	SC20UU
Compatible shaft diameter	20 mm
Nominal overall width	54 mm
Nominal overall length	50 mm
Nominal overall height	41 mm
Typical mounting threads	M6
Body style	Standard bearing block
Quantity	1 bearing block

These are common SC20UU nominal reference dimensions; dimensions and mounting details can vary by manufacturer or batch. Verify critical fit against the actual bearing before machining.

Selection and installation

The housing is fixed to a carriage or platform through its mounting points, while the shaft passes through the bearing. Check the mounting hole spacing, shaft centre height and clearance against your equipment before ordering; a matching shaft diameter alone does not confirm direct replacement compatibility. For installations needing a longer guide block, compare with the SC-LUU version for the same nominal shaft diameter.

Use a clean, straight shaft suitable for ball-type linear bearings. Align the shaft and bearing before tightening the mounting hardware, and check free movement by hand.