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Home / Bearings & Bushings / MPBZ25/28-12/15/20/30/40/50 Copper Alloy Straight Sleeve Oil-Free Bushing Graphite Self-Lubricating Copper Bushing

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High Strength Copper Alloy with Graphite
Lubrication Type Self-Lubricating (Oil-Free)
Bushing Style Straight Column Sleeve
Inner Diameter Options 12mm, 15mm, 20mm, 30mm, 40mm, 50mm
Outer Diameter Options 25mm, 28mm
Surface Hardness HB 90-120
Max Static Load 140 N/mm²
Max Sliding Speed 0.5 m/s (Dry)
Operating Temperature -40°C to +200°C
Surface Finish Precision Machined

5 reviews

A

Anonymous

Apr 13, 2026

Rating: 4/5

Good quality, tight tolerance

The material feels very solid and durable. The inner diameter was slightly tight for our existing shafts, required some polishing, but otherwise a great product for the price.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Great self-lubricating performance

We needed something that didn't require constant greasing in a dusty environment. These copper sleeves with graphite plugs are working perfectly. Very satisfied with the quality.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Durable under high load

Using these in a hydraulic application with significant side load. They have held up much better than the previous plastic bushings we used. Highly recommend for industrial use.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Fast shipping and well packaged

Arrived earlier than expected. Each bushing was individually wrapped to prevent damage. The SHRZ quality mentioned in the description is evident in the finish.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Perfect fit for our machinery

Ordered the 20mm ID version for a repair on our packaging line. The dimensions were spot on and the press fit was smooth. No squeaking after two weeks of continuous operation.

5 FAQ

Q: What is the recommended press fit tolerance for the outer diameter?

A: We recommend a tolerance of H7 for the housing bore to ensure a secure press fit without damaging the copper alloy.

Q: What is the maximum misalignment this bushing can tolerate?

A: To prevent edge loading and premature wear, we recommend keeping shaft alignment within 0.5 degrees.

Q: Are custom lengths available for this model?

A: Standard lengths are in stock. For custom lengths, please contact us directly. Production time for custom sizes is typically 5-7 business days.

Q: Can these bushings be used with stainless steel shafts?

A: Yes, this copper alloy material is compatible with hardened steel and stainless steel shafts without causing excessive wear.

Q: Do I need to apply any grease during installation?

A: No additional lubrication is needed for operation. However, a light coat of oil on the outer diameter can assist with the press fit installation process.

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