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Home / Bearings & Bushings / MPBZ40 45-20/30/40/50/6070 Copper Alloy Straight Column Oil-Free Bushing with Graphite Self-Lubricating Copper Sleeve

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High Strength Copper Alloy (CuZn25Al5)
Solid Lubricant Embedded Graphite Plugs
Inner Diameter Range 20mm - 70mm
Outer Diameter Range 25mm - 80mm
Length Tolerance ±0.10 mm
Max Static Load 120 N/mm²
Operating Temperature -40°C to +250°C
Hardness Rating HB 210-240
Surface Finish Precision Machined
Warranty Period 12 Months

5 reviews

A

Anonymous

Apr 20, 2026

Rating: 5/5

No maintenance needed

Installed these on conveyor belts months ago. No greasing required and they still run smoothly. Excellent investment.

A

Anonymous

Feb 26, 2026

Rating: 5/5

Precise dimensions

Fit perfectly into our housing units. The tolerance levels are accurate as described. Will order again.

A

Anonymous

Feb 02, 2026

Rating: 5/5

Great for high load applications

Used these in a hydraulic press setup. The self-lubricating feature really reduces downtime. Very satisfied with the durability.

A

Anonymous

Jan 31, 2026

Rating: 4/5

Good quality overall

The bushings are solid and well-made. Shipping took slightly longer than expected but the product quality makes up for it.

A

Anonymous

Jan 27, 2026

Rating: 5/5

Repeat customer

This is my third order. Consistency in quality is key for our production line and these deliver every time.

5 FAQ

Q: Can you provide custom lengths for this model?

A: Yes, contact us directly for custom cutting services on bulk orders.

Q: What housing tolerance is recommended for installation?

A: We recommend an H7 housing tolerance for optimal press fit performance.

Q: Is there bulk pricing available for large quantities?

A: Yes, discounted pricing is available for orders exceeding 100 units. Please request a quote.

Q: What shaft hardness is required for best performance?

A: The mating shaft should be hardened steel with a surface finish of Ra 0.4 or better.

Q: Are these suitable for corrosive environments?

A: They offer good resistance, but please check chemical compatibility for specific acidic or alkaline conditions.

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