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Home / Bearings & Bushings / RYS Harbin Linear Bearing LM 3 4 5 6 8 10 12 13 16 20 25 30 35 L UU

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material GCr15 Premium Bearing Steel
Model Series LM UU Series (LM3-LM35)
Seal Type Double Rubber Seals
Precision Grade Normal Precision
Surface Hardness HRC 60-64
Lubrication Pre-greased with Lithium Soap
Shaft Compatibility Metric Linear Shafts
Operating Temperature -20°C to 100°C
Country of Origin Harbin, China
Package Include 1 x Linear Ball Bearing

5 reviews

A

Anonymous

Apr 08, 2026

Rating: 4/5

Solid industrial bearings

Heavy duty feel and good construction. One bearing had a slight scratch on the outer case but did not affect performance.

A

Anonymous

Apr 02, 2026

Rating: 4/5

Good value but tight fit

The bearings are well made, but the LM8 size was a bit tight on my shaft initially. After some break-in time, they work perfectly.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Smooth operation for CNC

Used these LM16 bearings for my CNC router upgrade. The motion is very smooth and there is no noticeable play. Great quality for the price.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for 3D printers

Exactly what I needed for my 3D printer build. The double seals keep dust out effectively. Shipping was faster than expected.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Reliable supplier

This is my second order from RYS. Consistent quality across different sizes. I ordered LM12 and LM20 this time.

5 FAQ

Q: Do you sell matching linear shafts?

A: Yes, please check our Linear Shafts category for compatible hardened rods in various diameters.

Q: Can I use these in a dusty environment?

A: The double rubber seals provide good protection against dust, but regular maintenance is suggested for harsh environments.

Q: Do these come pre-lubricated?

A: Yes, all bearings are pre-greased at the factory. You can use them straight out of the package.

Q: What is the recommended shaft tolerance?

A: We recommend using a shaft tolerance of g6 for optimal performance and longevity.

Q: Are these bearings metric or imperial sizes?

A: All LM series bearings listed here are metric sizes designed for metric linear shafts.

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