Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	HRB (Harbin)
Bearing Type	Deep Groove Ball Bearing
Series	61900 Series (Extra Thin)
Seal Options	ZZ (Metal Shield) or 2RZ (Rubber Seal)
Material	Chrome Steel GCr15
Precision Grade	P0 (ABEC-1)
Internal Clearance	Standard (C3 Available)
Cage Material	Stamped Steel
Lubrication	Pre-filled Grease
Country of Origin	China

5 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect fit for my electric motor

Ordered the 61908 2RZ for a repair job. The dimensions were spot on and the rotation is very smooth. Genuine HRB quality.

Anonymous

Mar 01, 2026

Rating: 4/5

Solid industrial grade

Using these for a conveyor belt application. They handle the load well. Slightly tighter fit than expected but seated properly.

Anonymous

Feb 26, 2026

Rating: 5/5

Quiet operation

Replaced old noisy bearings in my workshop fan with these 61907 ZZ. Much quieter now. Will buy again.

Anonymous

Feb 12, 2026

Rating: 4/5

Good value but packaging loose

The bearings themselves are excellent quality. However, the box arrived slightly crushed. The bearings were fine inside their individual wraps.

Anonymous

Jan 28, 2026

Rating: 5/5

Authentic Product

Checked the laser etching on the ring. Definitely authentic Harbin bearings. Fast shipping from the flagship store.

5 FAQ

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

A: ZZ indicates metal shields on both sides, suitable for high speeds. 2RZ indicates non-contact rubber seals, offering better dust protection.

Q: Do I need to add more grease before installation?

A: No, these come pre-lubricated with high-quality grease ready for immediate use.

Q: Are these dimensions in millimeters?

A: Yes, all 61900 series bearings follow standard metric dimensions.

Q: Is there a warranty included?

A: Yes, all products from our Official Flagship Store come with a 12-month quality warranty.

Q: Can these handle high temperatures?

A: Standard grease is rated up to 120°C. For higher temperatures, please contact us for specialized variants.

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