PTFE Composite Bushings
Fiber-reinforced PTFE composite plain bearings for maintenance-free operation in rotating, oscillating, and linear motion applications.
Advanced Self-Lubricating Technology
PTFE composite bushings are high-performance plain bearings that combine a metal backing with a porous bronze interlayer and a PTFE-based sliding surface. The PTFE (polytetrafluoroethylene) overlay, often reinforced with fibers or solid lubricants, provides exceptional self-lubricating properties and the lowest friction coefficient of any bearing material.
JBM PTFE composite bushings are engineered for applications where maintenance-free operation is critical. The unique tri-layer construction delivers high load capacity, excellent wear resistance, and reliable performance across a wide temperature range—from cryogenic conditions to +280°C.
Key Material Properties
- PTFE/Fiber Mixture: Creates transfer film that protects mating surfaces
- Sintered Bronze Layer: Maximizes thermal conductivity and anchors PTFE
- Steel or Bronze Backing: Provides structural strength and heat dissipation
Performance Specifications
Suitable for All Movement Types
Rotating Motion
Continuous rotation with consistent friction and wear characteristics. Ideal for pumps, motors, and rotating shafts.
Oscillating Motion
Back-and-forth angular movement with excellent performance in hinges, linkages, and pivot points.
Linear Motion
Straight-line sliding movement for guide bushings, actuators, and reciprocating applications.
PTFE Composite Bushing Advantages
Maintenance-Free
Self-lubricating PTFE surface eliminates the need for external lubrication, reducing maintenance costs and downtime.
Ultra-Low Friction
PTFE delivers the lowest friction coefficient of any solid material (as low as 0.03), minimizing energy loss and heat generation.
High Load Capacity
Steel-backed construction supports static loads up to 250 N/mm² while maintaining excellent sliding characteristics.
Wide Temperature Range
Operates reliably from -195°C to +280°C, suitable for cryogenic to high-temperature applications.
Chemical Resistance
PTFE is chemically inert and resists most acids, bases, solvents, and hydraulic fluids without degradation.
Contamination Resistant
Non-porous PTFE surface resists contamination from dust, dirt, and moisture, ensuring consistent performance.
Low Noise Operation
Smooth PTFE surface eliminates stick-slip noise, ideal for office equipment, medical devices, and automotive interiors.
Compact Design
Thin-wall construction enables very small radial design envelopes for space-constrained applications.
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Get a QuoteAvailable Designs
Straight (Cylindrical) Bushings
Standard cylindrical design for radial load applications. Press-fit installation into housing bore. Available in metric and imperial sizes.
- Radial loads only
- Simple installation
- Cost-effective solution
Flanged Bushings
Integrated flange provides axial thrust surface. Accommodates both radial and axial loads in a single component.
- Combined radial + axial loads
- Positive axial location
- Simplified assembly
Thrust Washers
Flat ring design for pure axial load applications. Often used in combination with cylindrical bushings.
- Axial loads only
- Thin profile
- High thrust capacity
Where PTFE Composite Bushings Excel
Automotive
- Steering columns & gear pumps
- Shock absorbers & struts
- Door, hood & trunk hinges
- Seat adjustment mechanisms
- Brake calipers & pistons
- Windshield wiper systems
Hydraulics & Pneumatics
- Gear & vane pumps
- Piston pumps & motors
- Hydraulic cylinders
- Valve actuators
- Compressors
- Pneumatic cylinders
Industrial Equipment
- Textile machinery
- Packaging equipment
- Food processing machines
- Printing equipment
- Material handling
- Conveyor systems
Precision & Consumer
- Office automation (OA)
- Medical devices
- Home appliances
- Power tools
- Fitness equipment
- Consumer electronics
PTFE Composite Bushing Range
JBM-50
Steel Bronze Powder with PTFE/Fibre
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JBM-40
Steel Bronze Powder with PTFE/Fibre
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JBM-11
Bronze Backed with Bronze Powder PTFE/Fibre
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JBM-50DH
Steel Bronze Powder with PTFE/Fibre
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JBM-50HP
Steel Bronze Powder with PTFE/Fibre
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JBM-50MP
Steel Bronze Powder with PTFE/Fluoropolymer
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JBM-12
Steel with PTFE Tape
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JBM-25
Aluminum Alloy with PTFE Tape
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JBM-FR
Bronze Mesh + PTFE/Solid Lubricants
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JBM-22
Steel Bronze Powder with PVDF/PTFE
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JBM-80
Steel Bronze Powder with PEEK/PTFE
View Details →Need Help Selecting the Right PTFE Bushing?
Our engineering team can help you choose the optimal PTFE composite bushing for your application. Get expert recommendations, technical datasheets, and samples.
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