Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Model Series | KCMF / KCMFL |
| Ball Material | Chrome Steel GCr15 |
| Housing Material | Aluminum Alloy |
| Seal Type | Double Rubber Seals (UU) |
| Shaft Diameter Options | 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm |
| Mounting Style | Circular Flange with Countersunk Holes |
| Precision Grade | G10 Precision |
| Dynamic Load Capacity | Varies by Shaft Diameter |
| Operating Temperature | -20°C to 100°C |
| Lubrication | Pre-lubricated with Standard Grease |
Anonymous
Apr 02, 2026
Rating: 4/5
Great value
Shipping was fast, product works well. Slight resistance initially but broke in quickly after some cycles.
Anonymous
Mar 26, 2026
Rating: 5/5
Perfect for my 3D printer
Fit perfectly on the 8mm rods. Smooth motion right out of the box. Very happy with the quality for the price.
Anonymous
Mar 21, 2026
Rating: 5/5
Sturdy construction
Heavy duty feel. The aluminum housing is robust and the seals seem tight. Great for linear motion projects.
Anonymous
Mar 20, 2026
Rating: 4/5
Good quality bearing
Smooth motion but needed extra grease for my specific application. Otherwise solid construction and fast delivery.
Anonymous
Feb 17, 2026
Rating: 5/5
Exact replacement part
Used for CNC machine upgrade. The flange holes lined up perfectly with my existing mount. No modifications needed.
Q: Do these come pre-lubricated?
A: Yes, all units are pre-lubricated with standard grease before shipping and are ready to install.
Q: Difference between KCMF and KCMFL?
A: The L indicates an extended length version which provides higher load capacity and stability.
Q: What shaft tolerance is recommended?
A: We recommend using shafts with h6 or g6 tolerance for optimal performance and longevity.
Q: Can I use these outdoors?
A: Standard seals are for indoor use. For outdoors, consider additional protection from dust and moisture.
Q: Is this suitable for high-speed applications?
A: These are designed for linear motion. Please consult the load chart for max speed based on size.
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