Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | HRB (Harbin) |
| Model Series | 6305, 6306, 6307, 6308, 6309 |
| Bearing Type | Deep Groove Ball Bearing |
| Material | Chrome Steel (GCr15) |
| Precision Grade | P5 (ABEC 5) |
| Seal Type | 2Z (Metal) / 2RZ (Rubber) |
| Cage Material | Steel Stamped Cage |
| Lubrication | Pre-lubricated with Grease |
| Country of Origin | China |
| Warranty | 1 Year Manufacturer Warranty |
Anonymous
Apr 06, 2026
Rating: 4/5
Good fit but slow shipping
Dimensions matched perfectly with my machinery. Only issue was the delivery took longer than expected.
Anonymous
Mar 17, 2026
Rating: 5/5
Reliable for industrial use
Bought the 6308-2Z for conveyor belts. No issues so far after three months of continuous operation.
Anonymous
Feb 18, 2026
Rating: 4/5
Solid bearing
Good value for the price. Slightly tighter fit than expected but seated properly after installation.
Anonymous
Jan 31, 2026
Rating: 5/5
Excellent value
Arrived well packaged. Authentic product with clear laser markings on the ring. Will buy again.
Anonymous
Jan 28, 2026
Rating: 5/5
Genuine HRB Quality
Used these for a motor repair project. They run smooth and quiet. The packaging confirmed authenticity.
Q: What is the exact inner diameter for the 6305 model?
A: The 6305 model has an inner diameter of 25mm, outer diameter of 62mm, and width of 17mm.
Q: Are these bearings pre-lubricated?
A: Yes, all bearings come pre-lubricated with standard grease suitable for general industrial applications.
Q: How can I verify the authenticity of the product?
A: Check the laser marking on the ring and the hologram on the packaging box for verification codes.
Q: What is the difference between 2Z and 2RZ seals?
A: 2Z indicates metal shields on both sides, while 2RZ indicates non-contact rubber seals on both sides.
Q: Can these handle high-speed applications?
A: P5 precision supports moderate high speeds. Please refer to the specific RPM limit chart for the selected model.
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