A
Anonymous
Mar 28, 2026
Rating: 5/5
Self-lubricating works
No need to grease constantly. Very convenient for hard-to-reach areas in my machinery.
Description
National Standard Pure Brass Powder Metallurgy Oil-Impregnated Bearing Bushings, Full Range Inner Diameters M3, 4, 5, 6, 8-60mm
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Pure Brass (Sintered) |
| Manufacturing Process | Powder Metallurgy |
| Lubrication Type | Oil-Impregnated (Self-Lubricating) |
| Compliance Standard | GB Standard (Guobiao) |
| Inner Diameter Range | M3, M4, M5, M6, M8 to M60mm |
| Material Density | 6.0 - 6.4 g/cm³ |
| Hardness Rating | HB 30 - 60 |
| Operating Temperature | -10°C to +80°C |
| Surface Finish | Smooth Polished |
| Typical Applications | Motors, Machinery, Automotive Parts |
5 reviews
A
Anonymous
Mar 05, 2026
Rating: 5/5
Great for motor repair
Replaced worn bushings in my drill press. Fit was perfect and the self-lubricating feature is a huge plus.
A
Anonymous
Feb 27, 2026
Rating: 4/5
Good value
Quality is decent for the price. One was slightly off in tolerance but still usable for my hobby project.
A
Anonymous
Feb 21, 2026
Rating: 5/5
Fast delivery
Arrived earlier than expected. Well packaged to prevent damage during transit.
A
Anonymous
Feb 19, 2026
Rating: 4/5
Solid brass
Heavy and durable. Matches the description well. Would recommend for standard load applications.
5 FAQ
Q: Do you stock the M7 inner diameter size?
A: No, standard metric sizing usually skips M7 for this type of bearing. M6 and M8 are available.
Q: Can I use this bearing in submerged water conditions?
A: We do not recommend submerged use as it may wash out the impregnated oil over time.
Q: Is this material resistant to corrosion?
A: Yes, pure brass offers good natural corrosion resistance for most indoor environments.
Q: What is the standard lead time for shipping?
A: Orders are typically processed and shipped within 24 hours on business days.
Q: Can I press fit this into a housing?
A: Yes, these are designed for standard interference fit installation into a housing bore.
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