SF013,SF018 Gear pump bearing
It is developed according to the high PV value of hydraulic pump.It can offer the low friction coefficient and good anti-abrasion,be used in semi-dry condition.This product is applied to medium,high pressure gear pump,ram pump,vane pumps,etc.
Note:SF018 without lead
Cylindrical bushes,flanged bushes,thrust wahsers,strip and non-standard parts as the clients supplied drawing and etc.
Recommended housing bore tolerance is H7,while the shaft diameter tolerance is F7 or H8.
|Max load capacity P(Dynamic) 140N/mm2,Maximum PV value (Dry) 3.6N/mm2.m/s|
|Max load capacity P(Static)250N/mm2 Maximum PV value(Oil)60N/mm2.m/s|
|Max line speed V(Dry) 2m/s Working temperature -200C~+280C|
|Max line speed V(Oil) 5m/s Thermal conductivity 40W/(m.k)|
Friction coef 0.08~0.20 Coefficient of linear expansion 12*10*6/k