Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Model Series	LMF UU
Material	GCr15 Bearing Steel
Bore Diameter	5mm to 40mm Options
Outer Diameter	Standard Metric Sizes
Flange Shape	Round Flanged
Seal Type	Double Rubber Seals (UU)
Precision Grade	ABEC-1
Lubrication	Pre-greased
Hardness	HRC 60-64
Application	Linear Motion Systems

5 reviews

Anonymous

Apr 03, 2026

Rating: 4/5

Solid component

Works as expected for automation projects. Make sure your shaft is hardened for best longevity. Overall satisfied with the purchase.

Anonymous

Mar 27, 2026

Rating: 4/5

Good quality

Smooth movement but felt a bit tight initially. After some break-in time, it works great. Good value for the price.

Anonymous

Feb 26, 2026

Rating: 5/5

Fast delivery

Product arrived well packaged and on time. The bearing matches the specifications listed. No issues with installation.

Anonymous

Feb 21, 2026

Rating: 5/5

Excellent bearing

Very smooth linear motion. I used these for a 3D printer upgrade and noticed less vibration. The seals keep dust out effectively.

Anonymous

Feb 19, 2026

Rating: 5/5

Perfect for my CNC

Fit perfectly on the 8mm shaft. The motion is smooth and the flange mounting was straightforward. Highly recommend for hobbyist CNC projects.

5 FAQ

Q: What shaft tolerance is recommended for these bearings?

A: We recommend using shafts with h6 or g6 tolerance for optimal performance and longevity.

Q: What is the maximum speed rating for this linear bearing?

A: These bearings are suitable for moderate speeds typical in CNC and 3D printing applications. Exact speed depends on load and lubrication.

Q: What are the mounting hole spacing dimensions?

A: The mounting hole spacing varies by bore size. Please refer to the technical diagram in the product images for specific measurements.

Q: Is this bearing pre-lubricated or do I need to add grease?

A: Yes, all LMF UU bearings come pre-lubricated with grease from the factory.

Q: Can I return the item if I ordered the wrong bore size?

A: Yes, you may return the item if it is unused and in original packaging within our return policy period.

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