Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	C&U / Renben
Model Number	6309-2RZ (180309)
Inner Diameter	45 mm
Outer Diameter	100 mm
Width	25 mm
Seal Type	Non-Contact Rubber Seal (2RZ)
Material	Chrome Steel (GCr15)
Precision Class	ABEC-1 / P0
Weight	0.6 kg
Country of Origin	China

5 reviews

Anonymous

Apr 15, 2026

Rating: 5/5

Industrial grade reliability

Using these in our production line conveyors. No failures so far after 3 months of continuous operation.

Anonymous

Mar 24, 2026

Rating: 4/5

Good quality, slow shipping

Bearing itself is genuine C&U quality. Packaging was secure. Took a bit longer to arrive than expected.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect fit for my motor

Replaced the old noisy bearing with this one. Runs smooth and quiet. Dimensions matched perfectly.

Anonymous

Mar 04, 2026

Rating: 5/5

Great value

Much cheaper than local suppliers but same quality. The 2RZ seals keep dust out effectively.

Anonymous

Feb 22, 2026

Rating: 4/5

Solid bearing

Works as intended. Grease seems adequate from factory. Would buy again for maintenance jobs.

5 FAQ

Q: Is this bearing pre-lubricated?

A: Yes, it comes factory lubricated with standard grease.

Q: What is the maximum RPM for this bearing?

A: Depending on load, typically around 7000 RPM for grease lubrication.

Q: Do you offer bulk discounts?

A: Yes, please contact our sales team for orders over 50 units.

Q: Is the seal resistant to water?

A: The rubber seals offer splash resistance but are not fully waterproof for submersion.

Q: Can this replace a 6309-2RS?

A: Yes, 2RZ and 2RS are generally interchangeable for most applications.

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