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Home / Bearings & Bushings / Hot Sale Large Porcelain Machinery Bronze Sleeves, Precision Motor Bushings, Manufacturer Oil-Impregnated Copper Sleeves

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High-Grade Copper Alloy
Bearing Type Sleeve Bushing
Lubrication Method Oil-Impregnated Sintered Bronze
Inner Diameter Range 20mm - 200mm
Outer Diameter Range 30mm - 250mm
Length Range 30mm - 300mm
Hardness HB 60-90
Density 6.4 - 6.8 g/cm³
Operating Temperature -10°C to 120°C
Warranty Period 12 Months Manufacturer Warranty

5 reviews

A

Anonymous

Mar 21, 2026

Rating: 5/5

Consistent quality across bulk order

Ordered 50 units for our clients. Every single bushing met the specified tolerances. Manufacturer direct pricing made this very cost-effective for our inventory.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect fit for our ceramic kiln motors

We ordered these bushings for a retrofit on our large ceramic machinery. The dimensions were precise and the oil-impregnated material works smoothly. Highly recommend for industrial use.

A

Anonymous

Mar 04, 2026

Rating: 4/5

Good quality, slight shipping delay

The copper bushings are solid and well-made. They fit the motor shafts perfectly. Only giving 4 stars because shipping took a bit longer than expected, but the product itself is excellent.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Exact specifications as advertised

Precision is key for us. These copper sleeve bearings matched the drawings exactly. Installation was straightforward and performance has been stable under load.

A

Anonymous

Jan 31, 2026

Rating: 5/5

Durable and reliable

Been using these in our production line for three months now. No signs of wear yet. The self-lubricating feature saves us maintenance time. Great value for bulk orders.

5 FAQ

Q: Do these require additional lubrication during installation?

A: These are oil-impregnated bushings designed to be self-lubricating. However, applying a thin layer of machine oil during initial installation is recommended for optimal break-in.

Q: What is the maximum rotational speed these can handle?

A: For standard sizes, the recommended maximum surface speed is approximately 300 feet per minute. Higher speeds may require specific clearance adjustments.

Q: What is the typical lead time for large orders?

A: Standard sizes are usually shipped within 3-5 business days. Large bulk orders or custom specifications typically require 10-15 business days for production and quality check.

Q: Are these resistant to corrosion in humid environments?

A: Copper alloy offers good natural corrosion resistance. For highly humid or corrosive environments, we recommend applying a protective coating or selecting our stainless steel alternatives.

Q: Can these bushings be customized to non-standard sizes?

A: Yes, we offer custom machining services. Please contact our support team with your specific dimensions and quantity requirements for a quote.

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