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Home / Bearings & Bushings / Powder Metallurgy Pure Copper Bushing Oil-Impregnated Self-Lubricating Wear-Resistant Sleeve Bronze Liner Linear Bearing ID 4 5 6 8 10

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Pure Copper Powder Metallurgy
Lubrication Type Oil-Impregnated Self-Lubricating
Inner Diameter (ID) 4mm, 5mm, 6mm, 8mm, 10mm
Outer Diameter (OD) ID + 2mm (Standard Wall)
Length 10mm - 50mm (Customizable)
Hardness HB 30-50
Density 6.0 - 6.8 g/cm³
Operating Temperature -10°C to +120°C
Tolerance Grade ISO H7/H8
Package Quantity 10 Pieces per Pack

5 reviews

A

Anonymous

Mar 03, 2026

Rating: 3/5

Size variance

The 8mm ones were a bit tight on my shaft. Had to ream them out slightly. Otherwise okay.

A

Anonymous

Feb 24, 2026

Rating: 5/5

Bulk order satisfied

Ordered multiple packs for our prototypes. Consistent quality across all sizes. Will buy again.

A

Anonymous

Feb 02, 2026

Rating: 4/5

Good quality copper

Material feels solid. Had to press fit them carefully as they are slightly soft, but once installed they work well.

A

Anonymous

Feb 01, 2026

Rating: 5/5

Excellent wear resistance

Using these in a linear motion project. No binding issues and the oil impregnation lasts a long time.

A

Anonymous

Jan 31, 2026

Rating: 5/5

Perfect for my 3D printer

These bushings fit perfectly on my 5mm rods. The self-lubricating feature works great and reduces noise significantly.

5 FAQ

Q: Can these be cut to custom lengths?

A: Yes, you can cut them with a fine hacksaw or tubing cutter, but ensure the edges are deburred after cutting.

Q: Are these suitable for outdoor use?

A: Copper is resistant to corrosion, but for harsh outdoor environments, we recommend additional protective coating or housing.

Q: What shaft tolerance do you recommend?

A: We recommend a shaft tolerance of g6 or h7 for optimal sliding fit without excessive play.

Q: Do I need to add oil regularly?

A: No, these are oil-impregnated during manufacturing. They are self-lubricating for most standard applications.

Q: What is the maximum load capacity?

A: Load capacity depends on the specific dimensions and speed. Generally suitable for light to medium loads in linear applications.

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