PTFE Lined Washer Strips
PTFE Lined Washer Strips
Discover our plain bearings: Flange bearings, sleeve bushings, and thrust washers. Customizable bushing materials available. Our products are wear-resistant, maintenance-free, and designed to withstand dirt, dust, and corrosion.
Maintenance-free PTFE-lined washer thrust bearing, metric size, suitable for dry use with a steel-backed bronze structure. Request a free quote!Discover unparalleled performance with our maintenance-free PTFE-lined washer thrust bearings. Designed for metric applications, these bearings offer remarkable durability and reliability with their steel-backed bronze structure, ensuring optimal functionality even in dry conditions. Whether you are streamlining your industrial processes or enhancing mechanical efficiency, these bearings are engineered to meet your precise specifications. For further inquiries and custom options tailored to your unique needs, don’t hesitate—request a free quote today and experience the excellence of advanced bearing technology in your operations.
Viiplus composite dry sliding strips are designed for applications where axial space is limited, maintenance is not possible and where lubricant starvation can occur. Strips can be bent, pressed or coined to form flat linear guides, for example, L- or V-shaped profiles or other types of dry sliding components, and fit the actual application.
As well as for composite bushings and thrust washers, Viiplus manufactures composite strips as standard from PTFE and POM composite materials.
PTFE Lined Washer material,strips,sheet,Metric / Imperial: Metric (mm),with a Bronze support strip is also available, contact us for details.
steel backing strip with sintered bronze and PTFE layers,is a composite bearing & washer material comprising 3 layers.Steel support strip, Sintered bronze layer, PTFE layer.
- Maximum static load: 250 N/mm2
- Maximum dynamic load: 140 N/mm2
- Maximum sliding speed: 2.5 m/s (dry) 5 m/s (oiled)
- Operating temperature: -200 to +280oC
- Material conforms to DIN 1494
Metric Wrapped PTFE Lined Plain Bearing,
Plain Bearing,Wrapped PTFE Lined Material
Strip Size Metric / Imperial: Metric (mm)
Length: 500mm
Thickness (Sheets and Washers): mm
Width:mm
- 250mm x 500mm x 1mm sheet
- 250mm x 500mm x 1.5mm sheet
- 250mm x 500mm x 2mm sheet
- 250mm x 500mm x 2.5mm sheet
Sliding bearings The material in a wide variety of designs is produced by bearings with steel support or bearings with bronze support, PTFE layer, POM layer, composite material, plain bearing strips in the cutting, molding and shaping processes. Standard designs for plain bearings are cylindrical bushes,
Collar bushings, thrust washers, strips
Dry sliding bearings is a composite bearing material comprising 3 layers: Steel support strip, Sintered bronze layer, PTFE layer.
PTFE composite
PTFE composite bearings consist of a sheet steel backing on which a 0,2 to 0,4 mm thick porous layer of tin/bronze is sintered. By a rolling process, the pores of the sintered layer are filled with a mixture of
PTFE (polytetrafluoroethylene) and molybdenum disulphide (designation suffix E). An additional 5 to 30 μm thick running-in layer of the mixture is then applied to the sintered tin/bronze. This additional layer provides an optimum combination of the mechanical properties of the sintered tin/bronze and the good sliding and lubricating properties of the PTFE mixture. PTFE composite bearings have good dimensional stability and thermal conductivity.
Characteristics
Suitable for dry running
Bearing backed:
Material: Steel
Unique features:
Universal use
Low friction, high wear resistance
Extremely good performance, as self-lubricating parts materials
Lubrication required
Unique features:
Lifetime lubrication possible
Low consumption
Low sensitivity to edge loading
Good damping characteristics
Insensitive to impacts
Good chemical resistance
Structure
A lead-free polymer fibre mixture provides an initial transfer film which effectively coats the mating surface of the bearing assembly, forming an oxide-type solid lubricant film
Sintered bronze powder provides maximum thermal conductivity away from the bearing surface and also serves as a reservoir for the PTFE mixture
Steel backing provides the high load carrying capacity which provides the wrapped bearings with outstanding heat dissipation
The copper/tin plating provides excellent corrosion resistance
These are versatile and extremely durable wrapped bearings and can be used in many applications. Feel free to contact us for a discussion about how PTFE lined wrapped bearings could fit into your project.
Design
- Cylindrical bearings
- Flanged bearings
- Thrust washers
- Plates
- Drawing details
Standard materials for plain bearings
| Structure | steel backing strip with sintered bronze and PTFE layers |
|---|---|
| Max PV – Dry (N/mm² x m/s) | 1.8 |
| Max PV – Oiled (N/mm² x m/s) | 2.8 |
| Max Static load (N/mm²) | 250 |
| Max Dynamic load (N/mm²) | 140 |
| Max Sliding speed – Dry (m/s) | 2.5 |
| Max Sliding speed – With Oil (m/s) | 5 |
| Operating temperature (°C) | -200 to 280 |
| Thermal Conductivity (W/mk) | 42 |
| Coefficient of friction – Dry | 0.02 to 0.20 |
| Coefficient of friction – With Oil | 0.02 to 0.15 |
| Recommended shaft finish (Ra) | 0.04 max (N5) |
| Recommended shaft hardness (HB) | 200 min |
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