SF-1T Gear Oil Pump BearingsZhejiang Fengli Drive Technology Co., Ltd.


SF-1T gear pump special bearings, is based on the structure of the SF-1X material, according to the high-PV gear pump working conditions designed to launch a special formula products. Products with special advantages of anti-fatigue impact. Applicable pump pressure: 16-25Mpa, linear speed of 3.5-5m / s. In the realm of fluid lubrication under the PV value of up to 120 N / mm2.m / s, is a variety of gear pumps, piston pumps, vane pump the best choice.
This product passed the Yangtze River Hydraulic Factory CBK1 pump 100 million times the impact test, the quality level of the domestic leading position.

Technical Parameters

Data Code SF-1T
Material Steel+Ronze+(PTFE+Pb+Filler)
Applications   Products are mainly used in high-pressure gear pumps, piston pumps, vane pumps.
Max Load Capacity P (Dry Friction) Static Load N/mm² 250
Dynamic Load N/mm² 140
Oscoillation Load N/mm² 60
Max Line Speed V Dry Friction m/s 2.5
Oil Lubrication m/s >5
PV Value Limit Dry Friction m/s N/mm²·m/s 1.0
Oil Lubrication m/s N/mm²·m/s 10
Friction Coefficient u Dry Friction 0.08~0.25
Oil Lubrication 0.02~0.08
Mating Axis Hardness HB >220
Roughness Ra 0.4~1.25
Working Temperature ℃   -200~+280
Thermal Conductivity W/mk   40
Coefficient Of Linear Xpansion   11×10-6/K
Outside Surface Plating   copper/tin
In addition to the standard products shown in the catalog, you can also provide non-standard products or order according to customer requirements.