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Home / Bearings & Bushings / Manufacturing and Sales of Copper Bushings HRB-78 Copper Bushing Accessories Wear-Resistant Copper Shaft Sleeve Machining

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High-Grade Copper Alloy HRB-78
Hardness Rating 70-90 HB
Inner Diameter Range 20mm - 200mm
Outer Diameter Range 25mm - 210mm
Length Options 50mm - 500mm
Surface Finish Ra 1.6 μm
Dimensional Tolerance ISO H7/g6
Recommended Application Hydraulic Machinery, Automotive, Industrial
Unit Weight Varies by Dimension
Production Method Centrifugal Casting and Machining

5 reviews

A

Anonymous

Apr 13, 2026

Rating: 5/5

Excellent Customization

They machined custom dimensions perfectly according to our drawings. Great communication throughout the process.

A

Anonymous

Apr 08, 2026

Rating: 5/5

Reliable Supply

Ordered multiple times for our maintenance department. Consistency in quality makes these sleeves a staple for us.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for Retrofit

Fit exactly as specified for our hydraulic press repair. The wear resistance is noticeable compared to our previous supplier.

A

Anonymous

Mar 01, 2026

Rating: 4/5

Good Value

Quality is good and pricing is competitive. Shipping took a day longer than expected but the product itself is solid.

A

Anonymous

Feb 09, 2026

Rating: 5/5

Durable Material

Withstanding high friction environments very well. We have been running these for three months without signs of degradation.

5 FAQ

Q: Can I request a material certificate with my order?

A: Yes, material certificates are available upon request at the time of purchase.

Q: Do you offer volume discounts for large quantities?

A: Yes, tiered pricing is available for large quantity orders. Please inquire via our contact form.

Q: Do you ship internationally for bulk orders?

A: Yes, we offer international shipping for bulk orders. Please contact us for specific freight quotes.

Q: What is the maximum operating temperature for these sleeves?

A: The HRB-78 alloy is suitable for continuous operation up to approximately 200°C.

Q: Is an installation guide included with the parts?

A: Yes, a basic installation and maintenance guide is included with every shipment.

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