Powder Metallurgy Oil Bearing Copper Sleeve | Pure Copper Shaft Sleeve M3-M60

Give your machinery the durable, self-lubricating support it needs with a pure copper shaft sleeve. This powder metallurgy oil bearing is designed for long-lasting performance in high-friction applications, reducing the need for frequent maintenance.

This copper sleeve is crafted from a copper-base alloy using powder metallurgy technology. This process creates a porous structure that holds oil, providing continuous lubrication to rotating shafts. It helps reduce wear, noise, and heat buildup, making it a reliable component for motors, pumps, and industrial equipment.

The sleeve fits a wide range of shaft sizes from M3 to M60, offering versatility for different projects. Each piece is precision-made to standard dimensions for a secure fit. For unique requirements, custom sizes are available upon request.

Using this oil-impregnated bearing simplifies your equipment design by eliminating the need for external oiling systems. Its self-lubricating nature extends the life of both the bearing and the shaft, saving you time and replacement costs.

Key Features and Benefits

- Self-lubricating porous structure that continuously releases oil to reduce friction and wear

• Copper-base alloy construction that offers high strength and excellent thermal conductivity

• Standard sizing from M3 to M60 that fits common shaft diameters for easy installation

• Powder metallurgy manufacturing that ensures consistent quality and dimensional accuracy

• Customizable dimensions that let you get the exact size you need for specialized equipment

Who Is This For

- Maintenance technicians needing a reliable replacement bearing for motors and pumps

• Hobbyists building or repairing small engines, 3D printers, or CNC machines

• Industrial engineers designing self-lubricating systems for conveyor belts and fans

• Automotive enthusiasts working on steering columns, alternators, or other rotating assemblies

Usage Scenario

Mark was restoring an old bench grinder. The shaft was wobbling, and the noise was unbearable. He found the original bronze sleeve was dry and worn. After installing this powder metallurgy copper sleeve, the shaft ran smooth and quiet. The built-in oil kept it lubricated without him having to drip oil every week. The grinder now runs like new.

Micro Comparison

Unlike standard bronze bushings that need regular greasing, this oil-impregnated sleeve provides continuous lubrication from within its porous structure. Compared to plastic bearings, it handles higher temperatures and heavier loads without deforming. This makes it a smarter choice for long-term, low-maintenance operation.

Specifications

Material: Copper-Base Alloy

Model Number: M3-M60

Standard or Nonstandard: Standard

Customization: Available upon request

Package Includes

- 1 x Copper Shaft Sleeve (size as per your selection)

Questions and Answers

Question: Is this sleeve self-lubricating?

Answer: Yes, it is made using powder metallurgy, which creates tiny pores that hold oil. It releases oil gradually during operation for continuous lubrication.

Question: What sizes are available?

Answer: This sleeve is available in standard metric sizes from M3 up to M60. Custom sizes can be made if you contact customer service.

Question: Can I use this in a high-temperature environment?

Answer: Yes, the copper-base alloy handles higher temperatures well, typically up to 150°C (302°F), depending on the specific operating conditions.

Question: Does it need any external oiling?

Answer: No, the sleeve is pre-oiled during manufacturing. For most applications, no additional lubrication is needed. In extreme conditions, occasional oiling may extend its life.

Question: How do I know which size to order?

Answer: Measure the shaft diameter and the housing bore. Choose the sleeve size that matches your shaft diameter. If you need help, contact customer service with your measurements.