Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Model Series	SBR10UU to SBR50UU
Bearing Type	Open-Type Linear Ball Bearing Block
Material	High Carbon Chromium Steel (GCr15)
Surface Hardness	HRC 60-64
Seal Type	Double Rubber Seals (UU)
Compatible Shaft	SBR Supported Linear Round Shaft
Precision Grade	Normal Industrial Grade
Lubrication	Pre-lubricated with Anti-Rust Grease
Mounting Style	Standard Bolt-On Flange
Country of Origin	China

5 reviews

Anonymous

Apr 13, 2026

Rating: 5/5

Smooth operation

Used these for a 3D printer upgrade. Noise levels are low and the movement is consistent. Packaging was secure.

Anonymous

Apr 03, 2026

Rating: 4/5

Good value for money

Solid construction. They were a bit stiff out of the box but loosened up after some use. No issues so far.

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for my CNC build

These blocks fit the SBR20 shafts perfectly. Very smooth motion after a bit of break-in. Highly recommend for hobbyist CNC machines.

Anonymous

Mar 09, 2026

Rating: 5/5

Exact specifications

Measured the bore and it matches the standard SBR shaft dimensions exactly. No wobble or play.

Anonymous

Feb 16, 2026

Rating: 4/5

Solid bearings

Works as expected. Just make sure your shafts are hardened, otherwise these will wear out quickly.

5 FAQ

Q: Can these be used in vertical applications?

A: Yes, they can be used vertically, but ensure the load is within the specified limits to prevent premature wear.

Q: Are these compatible with standard round steel shafts?

A: Yes, these are designed specifically for hardened and ground round linear shafts in the SBR series.

Q: Do you sell the matching SBR rails separately?

A: Yes, we carry the corresponding supported linear rails. Please check our store category for Bearings & Bushings.

Q: Do I need to add grease before installation?

A: The blocks come pre-lubricated, but adding additional grease during maintenance is recommended for longevity.

Q: What is the load capacity for the SBR20UU model?

A: Dynamic load capacity varies by size. For SBR20UU, please refer to the technical datasheet provided in the product images.

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