Anonymous
Apr 02, 2026
Rating: 3/5
Check your shaft size
Make sure your shaft is hardened. They wore out quickly on soft steel shafts.
Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | KIF |
| Material | High-Carbon Chromium Steel |
| Country of Origin | Japan |
| Cage Type | Steel Cage |
| Temperature Range | -20°C to 150°C |
| Precision Class | ABEC-7 |
| Seal Configuration | Double Sealed (UU) |
| Load Capacity | Dynamic & Static |
| Shaft Requirement | Hardened Steel Shaft |
| Warranty Period | 12 Months |
Anonymous
Apr 02, 2026
Rating: 3/5
Check your shaft size
Make sure your shaft is hardened. They wore out quickly on soft steel shafts.
Anonymous
Mar 23, 2026
Rating: 5/5
Smooth operation
Very quiet and smooth. Great for 3D printer upgrades.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for CNC retrofit
These bearings fit perfectly on my 8mm shafts. Smooth motion and no play.
Anonymous
Mar 01, 2026
Rating: 5/5
High temp performance
Using these in a heated environment and they hold up well without seizing.
Anonymous
Feb 09, 2026
Rating: 4/5
Good quality, slow shipping
Quality is top notch as expected from KIF. Shipping took a bit longer than expected.
Q: Are these pre-lubricated?
A: Yes, they come with standard grease installed from the factory.
Q: Can I use these outdoors?
A: They are sealed but not waterproof. Please protect from direct moisture.
Q: What is the shaft tolerance?
A: Standard h6 tolerance is recommended for best performance.
Q: What is the max RPM?
A: Depends on load, but typically up to 3000 RPM for light loads.
Q: Do you offer bulk pricing?
A: Yes, contact us directly for orders exceeding 50 units.