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Home / Bearings & Bushings / Linear Ball Bearing with Double Cut-Edge Flange Medium Type LMF21/LMF22-d6 8 10 12 16 20 25 30

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Model Series LMF21 / LMF22 Medium Type
Bore Diameter Options 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm
Outer Diameter 15mm to 52mm (Varies by Model)
Overall Length 30mm to 80mm (Varies by Model)
Flange Diameter 24mm to 60mm (Varies by Model)
Ball Material GCr15 Bearing Steel
Cage Material Reinforced Nylon Plastic
Seal Type Double Rubber Seals (UU)
Precision Grade ABEC-1 / ISO Normal
Surface Hardness HRC 60-64

5 reviews

A

Anonymous

Apr 16, 2026

Rating: 4/5

Solid construction

Heavy duty feel. The double notched flange makes mounting very secure. Would buy again for future linear motion projects.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for CNC build

These bearings fit perfectly on my linear shafts. The motion is smooth and there is no binding. Highly recommend for hobbyist CNC projects.

A

Anonymous

Feb 27, 2026

Rating: 4/5

Good quality but tight fit

Quality seems solid. The 8mm version was slightly tight on my shaft initially but loosened up after some use. Good value overall.

A

Anonymous

Feb 12, 2026

Rating: 5/5

Fast shipping and well packed

Arrived earlier than expected. Each bearing was individually wrapped to prevent damage. The flange holes aligned perfectly with my mounts.

A

Anonymous

Feb 02, 2026

Rating: 5/5

Excellent durability

Been using these in an automation rig for three months now. No wear visible and still running quietly. Very satisfied with the purchase.

5 FAQ

Q: Do you offer bulk pricing for orders over 50 units?

A: Yes, we offer tiered pricing for bulk orders. Please message us directly for a custom quote.

Q: Can these be used in high temperature environments?

A: The standard seals are rated for typical operating temperatures. For extreme heat, please contact us for specialized options.

Q: What shaft tolerance do you recommend for these bearings?

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

Q: What is the mounting hole spacing for the d16 model?

A: Please refer to the dimension chart in the product images. For LMF22-d16, the pitch circle diameter is 35mm.

Q: Are these bearings pre-lubricated?

A: Yes, all units come factory lubricated with standard grease suitable for general industrial use.

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