JF Bi-metallic Composite Bearing
Wall Thickness of the Machinable and Nonmachinable Bore of Bushes and their Tolerance
Tolerance of Series B
Tolerance of Series C
JF Bi-metallic composite bearing material consists of steek backing with lead bronze or lead-free copper alloy （CuSn6.5P0.1、CuPb10Sn10、CuSn8Ni、CuPb24Sn4、AlSn20Cu）lining, bearing material for oil/grease lubricated applications. The copper alloy forms a continuously frame for thermal conductivity. These bearing structures are with high load capacity and good fatigue property. High tolerance can be achieved after re-machined from the customers. Lead-free bronze lining bearing material conforms to the European RoHS certificate.
Angineering machine: ubderpan, thrust wheel, towing wheel, steering knuckle, tension pulley……
Automotive: turning shaft, connecting rod, valve rocker, camshaft, gear box, internal combustion engine.
And plunger pump friction plate, gear pump friction plate ……
|Data||Grade||JF-930 (lead free)||JF-800||JF-820|
|Material||Steel CuSn6.5P0.1||Steel CuPb10Sn10||Steel CuSn8Ni|
|We can also develop according to customers special request while out of this table.|
|Max dynamic Load P (N/mm2)||140||140||140|
|Max line speed V (Greaes lubrication) (m/s)||2.5||2.5||2.5|
|Alloy layer hardness||60 ~ 130||70 ~ 130||70 ~ 130|
|Thermal conductivity (W/mk)||47||47||47|
|Coefficient of linear expansion||18x10-6/K||18x10-6/K||18x10-6/K|
Max PV value
|Friction coef u||Greaes|
|0.05 ~ 0.12||0.05 ~ 0.15||0.05 ~ 0.12|
|Oil lubrica-tion||0.04 ~ 0.12||0.04 ~ 0.12||0.04 ~ 0.12|
|Rough-ness||0.32 ~ 0.63||0.32 ~ 0.63||/|
|Pertinence application||Lead free, for use in medium load conditions, such as the engine connecting rod and bushings, steering pin covers.||Con-rod of|
machinery, heavy duty construction
Lead free, for use in medium load conditions, such as the engine connecting rod and bushings steering pin covers.