Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Series Model	LMK Extended Flange
Seal Type	LUU Double Seals
Material	GCr15 Bearing Steel
Bore Diameter Options	6mm, 8mm, 10mm, 12mm, 13mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm
Cage Material	Nylon Resin
Surface Hardness	HRC 60-64
Precision Grade	Standard ISO
Lubrication	Pre-lubricated with Grease
Max Operating Speed	120 m/min
Common Applications	CNC Machines, 3D Printers, Automation Equipment

5 reviews

Anonymous

Apr 17, 2026

Rating: 5/5

Durable

Been running for months without noise. The LUU seals keep the dust out effectively.

Anonymous

Mar 13, 2026

Rating: 5/5

Fast Shipping

Arrived well packaged and protected from rust. Exactly what I needed for my project.

Anonymous

Mar 04, 2026

Rating: 4/5

Good but tight

Quality is high, but needed a little break-in time before it felt completely smooth.

Anonymous

Feb 22, 2026

Rating: 5/5

Exact Specifications

Measured perfectly with calipers. Fits my 12mm shafts without any forcing required.

Anonymous

Feb 16, 2026

Rating: 5/5

Smooth Operation

Works great on my gantry system. The motion is very smooth and there is no play in the bearing.

5 FAQ

Q: Do these come pre-lubricated?

A: Yes, all LMK series bearings are pre-lubricated with standard lithium grease before shipping.

Q: What shaft hardness is recommended for these bearings?

A: We recommend using hardened shafts with a hardness of HRC 60 or higher for optimal lifespan.

Q: Can I use these in a dusty environment?

A: The LUU seals provide good protection against dust, but regular maintenance is advised in harsh conditions.

Q: Do you sell matching linear shafts?

A: Yes, please check our Linear Shaings category for hardened rods compatible with this series.

Q: Are these metric or imperial sizes?

A: All bore diameters listed in this series are metric measurements.

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