SLSP 2 - Composite Plain Bearing
Steel-Sintered-Bronze-PTFE Composite Material - maintenance-free
Material - Characteristics
Steel with porous sintered tin bronze layer, which is coated with PTFE as sliding layer.
The sliding layer made of PTFE enables maintenance-free, self-lubricating operation with low friction.
Products
SP2-C wrapped bushings
maintenance-free plain bearings with PTFE as sliding layer
SP2-F wrapped flanged bushings
maintenance-free plain bearings with PTFE as sliding layer
Application Data
| temperature range | -200 up to +280 °C |
| max. PV value | |
| dry | 3,6 MPa m/s |
| oil lubricated | 10 MPa m/s |
| max. sliding velocity | |
| dry | 2,5 m/s |
| oil lubricated | 5 m/s |
| max. surface pressure | stat. 250 MPa – dyn. 140 MPa |
| thermal expansion | 11 x 10-6 °C-1 |
| solid lubricant | PTFE |
frictional coefficient:
| dry | μ = 0,05 | up to 0,25 |
| with oil | μ = 0,02 | up to 0,08 |
For Bearing Design
Recommended fittings for the plain bearing and the sliding counterparts
| shaft | f7 |
| housing | H7 |
| bearing | according to DIN ISO 3547-1 (formerly DIN 1494) |
Thermal expansion has to be taken into account at bearing temperatures above 80 °C.
Mating Material
| surface roughness | Ra = 0,4 μm |
| minimum hardness | > 200 HB |
