Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | KIF |
| Country of Origin | Japan |
| Bearing Type | Hybrid Ceramic |
| Precision Grade | P5 (ABEC-5) |
| Inner Ring Material | 440C Stainless Steel |
| Outer Ring Material | 440C Stainless Steel |
| Rolling Element | Silicon Nitride (Si3N4) |
| Cage Material | Stainless Steel |
| Lubrication | Pre-lubricated with High-Speed Grease |
| Operating Temperature | -40°C to +120°C |
Anonymous
Apr 12, 2026
Rating: 5/5
Worth the Investment
Longer life expectancy observed so far. We use these in robotic arms where reliability is key. Genuine KIF quality as described.
Anonymous
Mar 08, 2026
Rating: 4/5
Very Smooth
Noticeable difference from steel bearings in terms of smoothness. Price is higher but justified for the performance gain in precision applications.
Anonymous
Feb 26, 2026
Rating: 5/5
Excellent Precision
Used these in a high-speed spindle upgrade and the difference is night and day. Much less vibration and heat generation compared to standard steel bearings.
Anonymous
Feb 23, 2026
Rating: 5/5
Fast Shipping
Product arrived well packaged and protected from moisture. Bearings spin freely without any grit or noise. Happy with the purchase.
Anonymous
Feb 05, 2026
Rating: 4/5
Good Performance
Running cool under load which was our main concern. Only giving 4 stars because lead time was slightly longer than expected.
Q: Are these full ceramic or hybrid ceramic bearings?
A: These are hybrid ceramic bearings. They feature stainless steel inner and outer rings with silicon nitride ceramic balls.
Q: What is the ABEC rating equivalent for P5 grade?
A: P5 precision grade is generally equivalent to ABEC-5 in terms of tolerance and running accuracy standards.
Q: Do you offer bulk discounts for orders over 50 units?
A: Yes, please contact our sales team directly through the customer service portal for bulk pricing inquiries.
Q: How is the corrosion resistance compared to standard chrome steel?
A: The 440C stainless steel rings offer significantly better corrosion resistance than standard chrome steel bearings.
Q: Do these come pre-lubricated or do I need to add oil?
A: Yes, they come pre-lubricated with high-speed synthetic grease suitable for most standard applications.
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