Gear Pump Bushing

www.cctbushing.com

Multi-layered:
 1. Support base: Steel
2. Intermediate Layer: Bronze Powder
 3. Inner Sliding Layer: PTFE/Lead

SF-1T is composed of a specially designed surface layer of PTFE formulations and is specifically applied for the high PV bushes of gear oil pumps. It is to be used in hydrodynamic or boundary lubricating condition of medium or high pressure gear oil pumps such as P=16-25 Mpa,V=3.5-5m/s.it shows the benefit of low friction coefficient,wear resistant and anti-impact properties.At hydrodynamic lubrication,The PV limit reaches to 120N/mm2.m/S.It is a best choice for the bushes of various kinds of gear pumps as well as plunger pumps,vane pumps and so on.it's successfully tested over one million times by changjiang hydraulic equipments company.

Gear Pump Bushing Materials Structure

PTFE with lead 0.01~0.03mm
Porous bronze 0.2~0.3mm
Steel backing 0.7~2.3mm
Tin-plating 0.005mm or copper plating 0.008mm

Gear Pump Bushing Specifications

 Load capacity:140N/mm2 
Temperature:-195~+280°C 
Speed limit:10m/s 
Friction coef(u):0.03~0.18 
PV LIMIT(Dry):4.3N/mm2 .m/s 
PV LIMIT(OIL):60N/mm2 .m/s

Wrapped Gear Pump Bushing Features

Low friction under oil condition.
Wear resistant and anti-impact.
At hydrodynamic lubrication,the PV limit reaches to 120N/(mm*mm)*m/s.
It is the best choice for the bushes in various kinds of gear pumps as well as plunger,vane pumps and so on.