2-Pack PTFE Composite Copper Bushing Self-Lubricating Oil-Free Bearing

2-Pack Composite Copper Bushing – Self-Lubricating, Oil-Free Bearing Sleeve

Upgrade your machinery with these precision-engineered composite copper bushings from JARBLUE. Available in a wide range of bore sizes (16, 17, 18, 20, 22, 25, 28, 30, and 32 mm), these oil-free, self-lubricating axle sleeves deliver outstanding performance across a broad spectrum of industrial and mechanical applications — with minimal maintenance required.

Multi-Layer Material Construction

Each bushing is built with a sophisticated four-layer composite structure for maximum durability and performance:

• Layer 1 – PTFE/Pb Wear Surface (0.01–0.03 mm): A modified polytetrafluoroethylene (PTFE) and lead mixture forms a wear-resistant surface that creates a protective transfer film on the mating shaft during operation.
• Layer 2 – Copper Powder Sintered Layer (0.2–0.3 mm): Enhances bonding between the PTFE/Pb layer and steel backing, providing excellent load-bearing capacity, wear resistance, and efficient heat dissipation.
• Layer 3 – Low-Carbon Steel Backing (0.7–2.3 mm): Provides structural integrity, increases load capacity, and improves heat transfer throughout the bearing.
• Layer 4 – Copper/Tin Anti-Corrosion Coating: A copper coating (0.008 mm) topped with a tin coating (0.005 mm) delivers excellent corrosion resistance, making these bushings suitable for use in corrosive media without rusting.

Key Performance Features

• ✅ Oil-free or low-oil lubrication — ideal for hard-to-reach or maintenance-free applications
• ✅ Wide operating temperature range: -195°C to +280°C (-319°F to +536°F)
• ✅ Low friction coefficient and long service life thanks to superior wear resistance
• ✅ Quiet operation — low noise and no pollution during use
• ✅ Thin-wall, lightweight design — reduces overall mechanical bulk and weight
• ✅ Dimensional stability — minimal water/oil absorption and low thermal expansion coefficient
• ✅ Shaft-friendly: low shaft hardness requirements; untreated/untempered shafts may be used, reducing manufacturing complexity
• ✅ CE Certified for quality assurance

Wide Range of Applications

These composite copper bushings are widely used in sliding mechanical components across many industries, including:

• Automatic mechanical equipment (telescopic, swing, sliding, rotating, and bending parts)
• Hydraulic cylinder guide sleeves and gear pumps
• Textile machinery, plastic molding machines, and die casting machines
• Rubber machinery, tobacco machinery, and vending machines
• Fitness equipment and office machinery
• Hydraulic carriers, motorcycles, and automotive components
• Agricultural and forestry machinery

Product Specifications

• Brand: JARBLUE
• Quantity: 2 PCS per lot
• Material: Composite (PTFE/Pb + Sintered Copper + Low-Carbon Steel + Copper/Tin Coating)
• Available Bore Sizes (mm): 16, 17, 18, 20, 22, 25, 28, 30, 32
• Lubrication: Self-lubricating, oil-free
• Certification: CE
• Country of Origin: Made in China

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What bore sizes are available for these composite copper bushings?

A: These self-lubricating composite copper bushings are available in bore sizes of 16, 17, 18, 20, 22, 25, 28, 30, and 32 mm, making them suitable for a wide variety of mechanical shaft dimensions.

Q: Do these bushings require regular oiling or lubrication?

A: No — these bushings are designed for oil-free or minimal-lubrication operation. The PTFE/Pb composite surface layer is inherently self-lubricating, making them ideal for locations that are difficult to access for maintenance or where maintenance-free performance is desired.

Q: What temperature range can these copper bushings handle?

A: These composite copper bushings are engineered to operate reliably across an extremely wide temperature range, from -195°C (-319°F) up to +280°C (+536°F), making them suitable for demanding industrial environments.

Q: Are these bushings resistant to corrosion?

A: Yes. Each bushing features a copper/tin anti-corrosion coating (copper at 0.008 mm, tin at 0.005 mm) applied to the steel backing, providing robust resistance to corrosion even when used in corrosive media environments.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.