Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | Harbin (HRB) |
| Bearing Series | 6300 Deep Groove Ball |
| Material | Chrome Steel GCr15 |
| Shield Type | Metal Shield (Z) |
| Precision Grade | P0 (ABEC-1) |
| Cage Material | Steel Stamped |
| Lubrication | Standard Grease Pre-filled |
| Internal Clearance | C0 (Normal) |
| Country of Origin | China |
| Warranty | 12 Months Limited |
Anonymous
Apr 16, 2026
Rating: 4/5
Solid build quality
These are not high precision spindle bearings, but for general machinery and pulleys they are perfect. Good value for the price point.
Anonymous
Apr 01, 2026
Rating: 5/5
Good inventory set
Having all sizes from 6300 to 6307 in one catalog order is convenient for our workshop. Everything arrived well labeled and organized.
Anonymous
Mar 15, 2026
Rating: 5/5
Excellent fit for motor repair
Used the 6305 Z for an electric motor repair. The fit was precise and the rotation is very smooth. Harbin quality is reliable for industrial applications.
Anonymous
Mar 14, 2026
Rating: 5/5
Fast delivery and safe packaging
Ordered the 6307 Z urgently. Arrived sooner than expected. Packaging protected the bearings well from moisture and damage.
Anonymous
Feb 04, 2026
Rating: 5/5
Authentic product
Verified the laser markings on the rings. These are genuine HRB bearings. No issues with noise or vibration during initial run-in.
Q: What is the maximum RPM for the 6303 Z?
A: The limiting speed varies by lubrication and load, but typically the 6303 Z can handle up to 22,000 RPM under ideal conditions.
Q: Do you offer bulk pricing for orders over 100 units?
A: Yes, we offer tiered discounts for bulk orders. Please contact our sales department directly for a custom quote.
Q: What is the difference between Z and 2RS suffix?
A: Z indicates a metal shield on one side, allowing for higher speeds. 2RS indicates rubber seals on both sides, offering better contamination protection but lower speed limits.
Q: Is the grease suitable for high temperature environments?
A: Standard grease is rated up to 120°C. For higher temperatures, we recommend requesting high-heat lubrication options at checkout.
Q: What are the dimensions for the 6305 model?
A: The 6305 Z has an inner diameter of 25mm, an outer diameter of 62mm, and a width of 17mm.
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