Flanged Self-Lubricating Copper Bushing | Powder Metallurgy 5pk

Upgrade your mechanical assemblies with these Flanged Self-Lubricating Copper Bushings — precision-engineered sintered bronze sleeve bearings manufactured via powder metallurgy. The porous copper matrix is impregnated with oil, allowing continuous self-lubrication during operation for smooth, low-friction performance without the need for external greasing.

Whether you're building custom machinery, repairing equipment, or working on hobby projects, these stepped flange bushings deliver consistent, reliable results in rotary and linear motion applications.

Key Features

• Self-Lubricating Design: Oil-impregnated sintered copper matrix provides continuous lubrication, reducing maintenance requirements.
• Stepped Flange Profile: The integrated flange shoulder ensures precise axial positioning and secure seating in bores.
• Powder Metallurgy Construction: Sintered manufacturing process produces a uniform, porous structure for superior oil retention and consistent dimensional accuracy.
• Copper Material: Excellent thermal conductivity and corrosion resistance for long service life in demanding environments.
• Wide Size Selection: Available in 17 size/color-coded options to fit a broad range of shaft and housing dimensions.
• Pack of 5: Convenient multi-pack for projects requiring multiple replacements or spare stock.

Typical Applications

• Electric motors and small appliances
• Custom machinery and automation equipment
• 3D printers, CNC machines, and robotic assemblies
• Automotive components and hobby projects
• Furniture hardware and sliding mechanisms

Specifications

• Material: Sintered copper (powder metallurgy / oil-impregnated bronze)
• Type: Flanged sleeve bushing with stepped flange
• Quantity: 5 pieces per pack
• Available Options: 17 size variants

Note: As different monitors display colors differently, the actual product appearance may vary slightly from the images shown. Please refer to the size specifications when selecting your variant.

For more information on industrial bearing standards and best practices, visit the NIST Manufacturing Systems Division.

Frequently Asked Questions

Q: What is a flanged self-lubricating copper bushing and how does it work?

A: A flanged self-lubricating copper bushing is a sintered sleeve bearing made through powder metallurgy — a process where copper powder is compressed and heated to form a porous metal structure. The pores are then impregnated with oil. During operation, heat and pressure draw that oil to the bearing surface automatically, providing continuous lubrication without the need for external grease or oil application. The stepped flange provides a shoulder for secure axial positioning within a housing bore.

Q: What are the 17 options available for these bushings?

A: The 17 options correspond to different size variants — typically varying inner diameter, outer diameter, and length dimensions — to suit a wide range of shaft and housing specifications. Please review the size chart in the product images or variant selector to choose the correct fit for your application.

Q: Are these bushings suitable for high-speed or high-load applications?

A: Sintered oil-impregnated copper bushings are well-suited for moderate-speed, moderate-load applications such as electric motors, small appliances, 3D printers, and hobby machinery. For extremely high-load or high-speed industrial applications, consult a bearing engineer to confirm suitability.

Q: How do I install a flanged sleeve bushing?

A: Press-fit the bushing into the housing bore using a suitable arbor press or bench vise — avoid striking with a hammer to prevent deformation. Ensure the flange shoulder seats flush against the housing face. The shaft should have a smooth finish and a close running clearance with the bushing's inner diameter for optimal performance.