Online Sourcing
Plain Bushes Supplier, PTFE Slide Bearings
Bushes, maintenance-free, with steel backing. Cylindrical plain bushes steel backed bearings. They allow not only swivel movements, but also axial movements and can support higher forces than conventional plain bearings.
Plain Bushes
Maintenance-free, steel-backed, metric sizes for shaft diameters in mm.
Custom-sized bushes available upon request. Please choose the desired characteristics to access specific bushing materials.
Maintenance-free plain bearings.
Bushes, low-maintenance, with steel backing and lubrication pockets.
We offers a comprehensive catalog of maintenance-free plain bearings.
Bushes in special sizes available by agreement.
(1) Lubrication pocket
(2) Butt joint.
These PTFE/POM plain bearing materials provide ultra-low friction coefficients for spherical plain bearings, rod ends, bushes, washers, and strips, ensuring low wear and exceptionally long life cycles.
PTFE Slide Bearings
Maintenance-Free (Self-Lubricating)
- Low Friction Coefficient
- Versatile Applications
- Long Lifespan
Applications:
- Packaging and packing machines
- Motors
- Turbines
- Pumps
- And more
Available Forms:
- Cylindrical bearings
- Flanged bearings
- Thrust washers
- Slide pads
- Lead-free PTFE options available
Product Description: PTFE Slide Bearings are self-lubricating, multilayer bearings consisting of a tinned steel frame, a sintered bronze intermediate layer, and an internal PTFE glide layer. This design is particularly suited for oscillating movements and applications that involve frequent starts and stops.
The bearings feature a very low friction coefficient, allowing them to function without additional lubrication. They can also operate effectively in environments containing oil or water, offering excellent corrosion resistance.
Installation: PTFE Bushings are prefabricated and best installed using a mandrel. When pressing the bearing into the housing, ensure that the gap in the bearing is not located in the load area, as it will be eliminated during installation.
Lubrication: While primarily designed for use without lubrication, if additional lubrication is required, avoid using grease containing molybdenum disulfide (MoS2), as it reacts strongly with the glide layer. Instead, use lithium-based lubricants, commonly known as “white grease.”
Special Dimensions: Custom dimensions are available upon request.
Technical Data:
- Material: Multilayer bearings, tinned steel frame / sintered bronze / PTFE glide layer
- Glide Layer Thickness: 0.01-0.03mm
- Friction Coefficient: Unlubricated 0.08-0.20μ, Lubricated 0.02-0.07μ
- Recommended Shaft Surface Roughness: 0.4μm
- Thermal Conductivity: 40 W/m·K
- Temperature Range: -200°C to 280°C
- Max. Static Load: Approx. 250N/mm²
- Max. Dynamic Load: 140N/mm²
- Max. Sliding Speed (with grease): Unlubricated 2.5m/s, Lubricated 5m/s
- Recommended Shaft Hardness: >180HB
- Tolerance: Shaft: f7 (<55mm iD) H8 (>55mm iD), Housing: H7
Dimensions – Cylindrical Bearings:
- d/D x L (mm)
- d/D x L (mm)
- d/D x L (mm)
- d/D x L (mm)
Dimensions – Flanged Bearings:
- d/D x L – D1 (mm)
- d/D x L – D1 (mm)
- d/D x L – D1 (mm)
Manufacturing Process
There are many applications where standard sliding bearings are not suitable. Viiplus customizes standard sliding bearings to the desired lengths to meet specific needs.
Wrapped Bushing Materials:
- Steel-Backed Bearings
- Bronze-Backed Bearings
- Custom-Manufactured Self-Lubricating Bushings, Flat Strips & Metal Sheets
Types of Bearings:
- Wrapped Dry Sliding Bearings
- Steel PTFE Bearings/POM Bushes
- Flange Bearings
- Fiberglide Woven Bearings
- Wrapped Plain Bearings
Manufacturing Techniques:
- Roller Burnishing
- More than just metal sheets
Cutting & Machining: Viiplus manufactures special sliding bearings tailored to your specifications. We adjust the sliding bearing to fit your requirements and the capabilities of our operational machinery, ensuring the optimal solution for your application. Our machinery includes milling machines, lathes, and a plate bending machine, allowing for precise customization and high-quality production.
