Description
Reviews
| Brand | - |
| Category | Root / Industrial Small Parts |
| Origin | - |
| Brand | KIF |
| Model Series | F6001, 6001Z, 688 |
| Material | Chrome Steel GCr15 |
| Precision Grade | P5 (ABEC 7) |
| Seal Type | Metal Shield (ZZ) / Rubber (2RS) |
| Bore Diameter | 12 mm |
| Outer Diameter | 28 mm |
| Width | 8 mm |
| Flange Outer Diameter | 30 mm |
| Lubrication | Pre-greased Premium Oil |
Anonymous
Apr 14, 2026
Rating: 5/5
High speed capable
Using these in a drone motor setup. They handle high RPMs without overheating. Very satisfied with the performance and durability.
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect for robotics project
These bearings fit perfectly into my robotic arm joints. The flange design made mounting much easier than standard bearings. Smooth rotation with minimal noise.
Anonymous
Feb 08, 2026
Rating: 4/5
Good but tight fit
Quality is excellent, but the tolerance was very tight on my housing. Had to press them in carefully. Once installed, they work great.
Anonymous
Jan 29, 2026
Rating: 5/5
Exact replacement part
Needed these for a CNC spindle repair. The dimensions matched the original specs exactly. Machine is running smoothly again.
Anonymous
Jan 19, 2026
Rating: 5/5
High quality Japanese build
You can feel the difference in quality compared to generic brands. The P5 grade precision is noticeable in high-speed applications. Will order again.
Q: What is the maximum RPM rating for these bearings?
A: For the F6001 series, the limiting speed is approximately 20,000 RPM with grease lubrication under standard load conditions.
Q: Do you offer bulk pricing for orders over 100 units?
A: Yes, volume discounts are available. Please contact our sales team directly through the inquiry form for a custom quote.
Q: Are these bearings corrosion resistant?
A: These are made of Chrome Steel GCr15. They have standard resistance but are not stainless steel. Use in dry environments or apply protective coating.
Q: Is the grease suitable for high-temperature environments?
A: The standard grease works up to 120°C. For higher temperatures, we recommend re-lubricating with high-heat synthetic grease.
Q: What is the exact thickness of the flange?
A: The flange thickness is approximately 1.0 mm for the F6001 model. Please refer to the technical drawing for precise tolerances.
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