Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	HRB
Material	Chrome Steel (GCr15)
Seal Type	2RZ, RS, or ZZ
Bore Diameter	40mm - 70mm (Model Dependent)
Outer Diameter	80mm - 150mm (Model Dependent)
Width	18mm - 35mm (Model Dependent)
Precision Grade	P0 (ABEC-1)
Radial Clearance	C0 (Standard)
Lubrication	Pre-lubricated with Grease
Country of Origin	China

5 reviews

Anonymous

Mar 04, 2026

Rating: 5/5

Industrial Quality

Using these in a production environment for three months now. No failures so far.

Anonymous

Feb 17, 2026

Rating: 5/5

Excellent Replacement

Fit perfectly into my industrial motor housing. The runout is minimal and operation is smooth.

Anonymous

Feb 02, 2026

Rating: 5/5

Smooth Running

Replaced old noisy bearings with these. The difference in noise level is significant.

Anonymous

Jan 29, 2026

Rating: 4/5

Good Value

Works well for the price point. Shipping took a few days longer than expected but the product is solid.

Anonymous

Jan 23, 2026

Rating: 5/5

Fast Delivery

Arrived early and packaging was secure. No damage to the seals during transit.

5 FAQ

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

A: Yes, please contact our sales department directly for bulk pricing tiers.

Q: Are these compatible with standard 6308 motor housings?

A: Yes, these follow standard ISO dimensions for the 6308 series.

Q: Is there a warranty included with these bearings?

A: Yes, all HRB bearings come with a standard 1-year manufacturer warranty.

Q: What is the difference between ZZ and 2RZ seals?

A: ZZ denotes metal shields on both sides, while 2RZ indicates non-contact rubber seals.

Q: What is the maximum RPM for the 6310 model?

A: Limiting speed varies by lubrication, but typically around 7000 RPM for grease lubrication.

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