Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material Composition	Copper-Based Powder Metallurgy
Lubrication Type	Self-Lubricating (Oil-Impregnated)
Inner Diameter Options	3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 20mm
Outer Diameter Tolerance	+0.03mm / -0.01mm
Inner Diameter Tolerance	+0.02mm / -0.02mm
Max Operating Temperature	80 Degrees Celsius
Oil Content	18% by Volume
Hardness Rating	45 HRB (Average)
Surface Finish	Machined and Deburred
Package Quantity	10 Pieces per Size Set

5 reviews

Anonymous

Apr 17, 2026

Rating: 4/5

Solid industrial grade

Good value for bulk purchase. Would buy again for workshop maintenance.

Anonymous

Apr 08, 2026

Rating: 5/5

Excellent fit for small motors

Used these for repairing vintage fans. The oil impregnation works well and reduces friction noticeably.

Anonymous

Mar 21, 2026

Rating: 4/5

Good quality bushings

Material feels solid. One size was slightly tight but worked after careful installation.

Anonymous

Mar 10, 2026

Rating: 5/5

Great for DIY projects

Exactly what I needed for my 3D printer build. Smooth operation right out of the box.

Anonymous

Feb 26, 2026

Rating: 5/5

Fast delivery and accurate

Sizes matched the caliper measurements perfectly. Very satisfied with the precision.

5 FAQ

Q: Are these resistant to corrosion?

A: The copper base offers good resistance to corrosion in standard indoor environments.

Q: Do I need to add oil before installation?

A: No, these are pre-impregnated with oil and are designed to be self-lubricating during use.

Q: What is the recommended press fit tolerance?

A: We recommend an H7/h6 fit for optimal performance and retention.

Q: Can these handle high RPMs?

A: They are suitable for low to moderate speeds. High-speed applications may require additional lubrication.

Q: Can I cut these to custom lengths?

A: Not recommended, as cutting may affect the oil distribution and structural integrity.

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