Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Model Series	LM UU Series
Material	GCr15 Bearing Steel
Surface Treatment	Black Oxide Coated
Seal Type	Double Rubber Seals
Shaft Compatibility	Ground Hardened Shafts
Precision Class	Normal Grade
Cage Material	Steel Retainer
Lubrication	Pre-greased
Operating Temperature	-20°C to 120°C
Package Content	1 x Linear Bearing

5 reviews

Anonymous

Apr 19, 2026

Rating: 5/5

Great for 3D Printer

Upgraded my Z-axis linear rails. Much quieter than the old plastic bushings.

Anonymous

Mar 28, 2026

Rating: 5/5

Reliable performance

Using these in an automation project. They handle the load well without excessive wear.

Anonymous

Mar 28, 2026

Rating: 5/5

Smooth motion for CNC

These bearings glide perfectly on my ground shafts. No binding issues noticed during initial setup.

Anonymous

Mar 23, 2026

Rating: 4/5

Good quality import

Solid construction. One was slightly tight but loosened up after some use.

Anonymous

Mar 12, 2026

Rating: 5/5

Exact specifications

Measured the inner diameter and it matches the standard tolerance for LM series.

5 FAQ

Q: Are these compatible with soft steel shafts?

A: Using soft shafts is not recommended as it may cause premature wear on the bearing balls.

Q: Do these require additional lubrication?

A: They come pre-greased, but periodic maintenance is suggested for heavy use cases.

Q: Can I use these in high temperature environments?

A: Standard grease is rated up to 120°C. For higher temps, special lubrication is needed.

Q: What is the tolerance on the inner diameter?

A: The inner diameter follows standard ISO tolerance for LM UU series bearings.

Q: What shaft hardness is recommended?

A: We recommend using hardened ground shafts with HRC 50-60 for best longevity.

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