A
Anonymous
Mar 29, 2026
Rating: 5/5
Great quality bushing
No noise after installation. The self-lubricating feature works well under load.
Description
SF1-5040 Composite Bearing/Self-Lubricating Oil-Impregnated Bearing/Oil-Free Liner/Bushing/Copper Bushing 50*55*40
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Inner Diameter | 50 mm |
| Outer Diameter | 55 mm |
| Length | 40 mm |
| Material | Composite Brass |
| Lubrication Type | Self-Lubricating (Oil-Impregnated) |
| Operating Temperature | -40°C to +120°C |
| Load Capacity | Medium Duty |
| Surface Finish | Machined |
| Application | Industrial Machinery |
| Package Content | 1 Piece |
5 reviews
A
Anonymous
Mar 28, 2026
Rating: 5/5
Reliable component
Using these in production equipment. No failures so far after 3 months.
A
Anonymous
Mar 25, 2026
Rating: 4/5
Good but tight fit
Quality is good, but required a bit of force to install onto the shaft.
A
Anonymous
Mar 05, 2026
Rating: 5/5
Smooth operation
Reduced friction significantly in my custom project. Highly recommend.
A
Anonymous
Feb 14, 2026
Rating: 5/5
Perfect fit for my machinery
Exactly what I needed. Dimensions were spot on and installation was smooth.
5 FAQ
Q: Is this bearing metric or imperial?
A: This is a metric bearing with dimensions 50x55x40 mm.
Q: Does this require additional grease?
A: No, it is oil-impregnated and self-lubricating for maintenance-free operation.
Q: What is the maximum RPM?
A: Recommended max speed depends on load, typically up to 2000 RPM for this size.
Q: Can this be used outdoors?
A: Yes, but extreme weather conditions may affect longevity over time.
Q: Is the inner surface hardened?
A: The composite material provides sufficient hardness for standard applications.
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