195-27-31250 BOSS
Shaft sleeve is a key supporting and wear-resistant component in the transmission system, walking system, and hydraulic components of bulldozers. Its main function is to reduce friction between the shaft and the bearing seat, absorb vibration, and position rotating parts. It is widely used in parts that bear radial loads and is the basic component to ensure the smooth operation of equipment. Its performance directly affects the reliability and service life of bulldozers under high load and high dust conditions.
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Bearing type: metal shaft sleeve
Core materials: 45 steel, cast iron, bronze
Performance characteristics: High strength, excellent wear resistance, suitable for heavy-duty transmission parts
Application parts of bulldozers: drive axle half shaft, gearbox gear shaft, track tensioner axle neck
Bearing type: bimetallic shaft sleeve
Core material: Steel backing+Babbitt alloy/copper alloy lining
Performance characteristics: Balancing matrix strength and friction surface lubricity, reducing journal wear
Application parts of bulldozers: engine crankshaft bearings, steering knuckle main pins
Bearing type: plastic shaft sleeve
Core materials: PTFE (polytetrafluoroethylene), nylon
Performance characteristics: Good self-lubricating performance, corrosion resistance, suitable for light load and low maintenance parts
Application parts of bulldozers: hydraulic cylinder piston rod guide sleeve, control rod joint
Bearing type: Aluminum alloy shaft sleeve
Core material: Aluminum alloy (such as SCKM/SCKL series)
Performance features: Lightweight, strong corrosion resistance, easy installation and adjustment with an open design, integrated thrust clamping function
Application parts of bulldozers: optical axis positioning, hydraulic pipeline fixing brackets, small transmission components
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