Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material Composition	Powder Metallurgy Copper
Lubrication Method	Self-Lubricating (Oil Impregnated)
Available Sizes	M3, M4, M5, M6, M8, M10
Hardness Rating	HB 30-50
Material Density	6.4 g/cm³ (Average)
Max Operating Temperature	80°C
Min Operating Temperature	-10°C
Surface Finish	Polished
Recommended Applications	Electric Motors, Fans, Home Appliances
Package Quantity	10 Pieces per Box

5 reviews

Anonymous

Apr 20, 2026

Rating: 4/5

Good Quality

Slightly tight fit but once installed they work smoothly. Good value for the price compared to local hardware stores.

Anonymous

Apr 11, 2026

Rating: 5/5

Fast Shipping

Works great for DIY appliance repairs. Arrived quickly and packaging protected the bushings well.

Anonymous

Apr 02, 2026

Rating: 5/5

Great Value

Exactly as described. The copper material looks solid and the sizing was accurate for my M5 project.

Anonymous

Feb 28, 2026

Rating: 5/5

Smooth Operation

No noise after installation. The oil impregnation really works well for reducing friction in my fan motor.

Anonymous

Feb 06, 2026

Rating: 5/5

Perfect Replacement

Fit my motor perfectly. The self-lubricating feature saves a lot of maintenance time. Highly recommend for DIY repairs.

5 FAQ

Q: Do I need to add oil to these bearings before installation?

A: No, these are oil-impregnated during manufacturing. They are self-lubricating and do not require additional oil.

Q: What is the recommended method for installing these sleeves?

A: A standard press fit into the housing is recommended. Ensure the housing bore is clean and free of burrs before installation.

Q: What is the inner diameter tolerance for these bushings?

A: These bushings are manufactured with standard H7 tolerance suitable for most general mechanical applications.

Q: Can I use these bushings in outdoor wet environments?

A: While copper is resistant, we do not recommend submerged use. They are best suited for dry or mildly humid indoor conditions.

Q: Are these made of solid copper or a composite?

A: They are made using powder metallurgy techniques with copper base, which allows for oil impregnation within the material structure.

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