Products Description
Formulated to endure the heavy cyclic radial forces generated by gear mesh thrust, our Steel Backed Bronze Gear Pump Bushing features an eco-friendly CuSn8 phosphor bronze lining (or optional leaded alloy) bonded to a rigid steel core. We produce this Steel Backed Bronze Gear Pump Bushing specifically for drive and driven gear shafts in external gear pumps used on forklifts, wheel loaders, and sweepers. With roundness controlled within 0.005 mm and superior anti-galling performance during cold starts, our Steel Backed Bronze Gear Pump Bushing prevents journal scuffing and prolongs gear pump core longevity.
Application Scenarios
- Drive and idler shaft journal support in external hydraulic gear pumps.
- Gear pump assemblies in forklifts, farm tractors, and municipal street sweepers.
- Aftermarket gear pump rebuild kits and remanufacturing programs.
Technical Specifications
|
Material System |
Rigid steel back + CuSn8 bronze lining (leaded alloy optional) |
|
Rated Radial Load |
≤70 N/mm² |
|
Bore Roundness |
≤0.005 mm (Coaxiality ≤0.01 mm) |
|
Friction Coefficient |
0.05–0.12 (Oil Lubricated) |
|
Maximum Shaft Speed |
≤3000 rpm |
Customization Capabilities
- Oil indentation shapes (diamond, circular pockets, or spiral grooves) tailored to lubrication viscosity.
- Custom dimensional sizing matching specialized American and European gear pumps.
- Flexible batch production starting at 100 units; prototype lead time within 30 days.
Quality Control
- Continuous roundness and concentricity verification across precision internal grinders.
- Bond shear checks ensuring zero risk of lining separation under 70 N/mm² loads.
- 100% full inspection of deburring, surface roughness, and packaging preservation.
FAQ
Q: Can these bushings tolerate temporary dry friction during cold equipment start-up?
A: Yes, internal spherical oil indents retain a reservoir of oil, providing boundary lubrication that shields the journal during initial rotation.
Q: How do you handle non-standard shaft dimensions?
A: Our technical team models custom tooling and delivers pilot samples in 30 days based on your shaft and housing drawings.
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