The material is with good wear resistance, low friction coefficient, corrosion resistance and high chemical resistance. It is suitable for the applications where the lubricating is hard to or not accessible. The machining requirement of the mating parts is not critical, so this kind of material is widely used in the general industry.
PTFE Sliding Bushing Tech. Data
| Max. load | Static | 250N/mm² | Friction coefficient | 0.03~0.20 | ||
| Very low speed | 140N/mm² | Max.speed | Dry running | 2m/s | ||
| Rotating oscillating | 60N/mm² | Hydrodynamic operation | >2m/s | |||
| Max. PV Dry running | Short-term operation | 3.6N/mm²*m/s | Thermal conductivity | 42W(m*K)-1 | ||
| Continuous operation | 1.8N/mm²*m/s | Coefficient of thermal expansion | 11*10-6*K-1 | |||
| Operation Temperature range | -195℃～+280℃ | |||||
PTFE composite flanged bushing maintenance-free steel backing
The PTFE-based sliding surface enables smooth running with low friction without lubrication. The presence or continuous supply of oil or other non-corrosive fluids can be beneficial and improve the performance of these bearings.
Advantages of PTFE composite plain bearings include:
● maintenance-free operation
● very good frictional properties
● high load carrying capacity
● operation temperatures up to 250°C
● sliding velocity up to 2 m/s
● small operating clearance
Applications include:
● automotive
● material handling equipment
● home appliances and consumer goods
● textile machinery
Typical Applications
PTFE composite bearings are resistant to oil, acids, and seawater. In addition, there is no lead in the PTFE surface layer and is particularly suitable for application in food machines, alkaline flow meters, pump handling elements in pharmaceutical machines, printing machines, chemical engineering machines, and other oceanic industries.
PTFE composite flanged bushing - Metric Size Chart
| Manufacturer ID | Shaft diameter mm | Outer diameter mm | Width mm | Flange diameter mm | Flange thickness mm | Tread material |
| PTFE composite flanged bushing 060804 E | 6 | 8 | 4 | 12 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 060808 E | 6 | 8 | 8 | 12 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 081005.5 E | 8 | 10 | 5.5 | 15 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 081009.5 E | 8 | 10 | 9.5 | 15 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 101207 E | 10 | 12 | 7 | 18 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 101209 E | 10 | 12 | 9 | 18 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 101209 E/ VL097 | 10 | 12 | 9 | 18 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 101212 E | 10 | 12 | 12 | 18 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 101217 E | 10 | 12 | 17 | 18 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 121407 E | 12 | 14 | 7 | 20 | 1 | Polytetrafluoroethy lene (PTFE) |
| 12 | 14 | 9 | 20 | 1 | PTFE | |
| PTFE composite flanged bushing 121412 E | 12 | 14 | 12 | 20 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 121415 E | 12 | 14 | 15 | 20 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 121415 E/ VL097 | 12 | 14 | 15 | 20 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 121417 E | 12 | 14 | 17 | 20 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 141612 E | 14 | 16 | 12 | 22 | 1 | Polytetrafluoroethy lene (PTFE) |
| PTFE composite flanged bushing 141617 E | 14 | 16 | 17 | 22 | 1 | Polytetrafluoroethy lene (PTFE) |