Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand Name	HRB (Harbin)
Model Series	6900, 6901
Bearing Type	Deep Groove Ball Bearing
Material Composition	GCr15 Bearing Steel
Seal Configuration	ZZ (Metal) or 2RZ (Rubber)
Inner Diameter	10mm (6900), 12mm (6901)
Outer Diameter	22mm (6900), 24mm (6901)
Bearing Width	6mm
Precision Rating	P0 (ABEC-1)
Country of Origin	China

5 reviews

Anonymous

Apr 21, 2026

Rating: 4/5

Good quality overall

Bearings work well. One out of the pack was slightly stiff initially but loosened up after use. Good value for the price.

Anonymous

Mar 27, 2026

Rating: 5/5

Authentic Product

I was worried about fakes but the laser marking is clear and the packaging was official. Very satisfied with this store.

Anonymous

Mar 22, 2026

Rating: 5/5

Industrial Standard

Running these in a small motor assembly for 2 months now. No noise or heat issues. Reliable performance.

Anonymous

Feb 26, 2026

Rating: 5/5

Fast Delivery

Shipping was quick and the bearings were well protected in bubble wrap. No damage during transit. Will buy again.

Anonymous

Jan 30, 2026

Rating: 5/5

Perfect fit for my project

Used these for a 3D printer upgrade. The dimensions are spot on and the rotation is very smooth. Genuine HRB quality as expected.

5 FAQ

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

A: ZZ indicates metal shields on both sides, suitable for high speed. 2RZ indicates rubber contact seals, better for dust and moisture protection.

Q: Are these bearings pre-lubricated?

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

Q: Can these handle high RPM applications?

A: They are suitable for standard to high speeds depending on the load. For extreme RPM, please consult our technical team for specific series.

Q: How can I verify the authenticity of these bearings?

A: Genuine HRB bearings feature clear laser etching on the ring and come in official branded packaging with a quality certificate.

Q: Do you offer a warranty on these items?

A: Yes, we provide a 12-month quality guarantee against manufacturing defects when purchased from this official store.

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