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Home / Bearings & Bushings / MPBZ100-40/50/60/70/80/100 Copper Alloy Straight Column Oil-Free Bushing Graphite Self-Lubricating Copper Shaft Sleeve

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition Solid Bronze CuSn7ZnPb
Lubrication Type Graphite Plugs (Self-Lubricating)
Inner Diameter Options 40mm, 50mm, 60mm, 70mm, 80mm, 100mm
Outer Diameter Range 50mm to 120mm
Length Range 40mm to 100mm
Static Load Capacity 250 N/mm²
Operating Temperature -40°C to +250°C
Hardness 90 HB
Surface Finish Machined and Polished
Common Applications Hydraulic Cylinders, Marine Equipment, Construction Machinery

5 reviews

A

Anonymous

Apr 25, 2026

Rating: 4/5

Good quality, precise sizing

The dimensions were accurate according to our calipers. Only giving 4 stars because shipping took a bit longer than estimated, but the product itself is solid.

A

Anonymous

Mar 30, 2026

Rating: 4/5

Reliable industrial component

We ordered the 80mm variant for our construction equipment. They perform well under high stress. Would recommend for industrial use.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Great corrosion resistance

Using these in a marine environment. Bronze holds up well against saltwater exposure. Very satisfied with the durability.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Excellent for heavy machinery

These bearings fit perfectly into our hydraulic press setup. The self-lubricating graphite plugs are working as advertised, reducing maintenance time significantly.

A

Anonymous

Feb 24, 2026

Rating: 5/5

Smooth operation immediately

No need for initial greasing. Installed them and the shaft moved smoothly right away. High load capacity is noticeable.

5 FAQ

Q: What is the maximum shaft speed recommended?

A: For optimal performance, we recommend a maximum sliding speed of 0.5 m/s under high load conditions.

Q: What is the tolerance standard for the inner diameter?

A: We adhere to ISO H7 tolerance standards for the inner diameter to ensure a proper fit.

Q: Do you offer bulk pricing for orders over 100 units?

A: Yes, please contact our sales department directly for a quote on bulk orders exceeding 100 units.

Q: Are these suitable for underwater applications?

A: Yes, the bronze material offers excellent corrosion resistance suitable for submerged or marine environments.

Q: Can these bearings be machined further if needed?

A: Yes, solid bronze can be machined, but please note that altering the surface may affect the graphite plug distribution.

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