Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Chrome Steel (GCr15)
Seal Type	Open, Z, ZZ, RS, 2RS
Precision Class	ABEC-1, ABEC-3, ABEC-5, ABEC-7
Cage Material	Steel or Nylon Reinforced
Lubrication	Pre-lubricated with Grease
Inner Diameter Range	1mm to 4mm
Outer Diameter Range	4mm to 9mm
Width Tolerance	±0.05mm
Noise Level	Low Noise (Z1/Z2/Z3)
Package Content	10 Pieces per Model Pack

5 reviews

Anonymous

Apr 08, 2026

Rating: 4/5

Durable under stress

Using them in high RPM setups. They hold up well but need regular maintenance.

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for my drone build

These MR128 bearings fit perfectly in my motor mounts. Smooth rotation and no play.

Anonymous

Mar 16, 2026

Rating: 5/5

Fast shipping great price

Bought the full range kit. Good to have all sizes on hand for prototypes.

Anonymous

Feb 24, 2026

Rating: 5/5

Essential for small repairs

I use these for repairing small appliances. The MR105 size is hard to find elsewhere.

Anonymous

Jan 23, 2026

Rating: 4/5

Good quality slight grease smell

Works well for my 3D printer idler. Had to clean off excess grease but otherwise solid.

5 FAQ

Q: Can I return if I order the wrong size?

A: Yes unused packages can be returned within 30 days.

Q: Are these stainless steel?

A: No these are Chrome Steel. Stainless options are available separately.

Q: What is the maximum RPM?

A: Depends on the specific size but generally rated for high-speed applications up to 30000 RPM.

Q: Do you offer bulk discounts?

A: Yes please contact us for orders over 50 packs.

Q: Is the grease food safe?

A: No standard industrial grease is used. Not recommended for food processing equipment.

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