Product Overview
The Copper Steel Piston Motor Sleeve Bearing is designed for high-pressure side loads in piston motors.
It can be installed as a main shaft sleeve or cylinder block guide bearing.
Material Structure
The bearing combines an alloy steel backing with a high-lead bronze inner wall.
The alloy steel provides strength and deformation resistance. The bronze layer creates a low-friction contact surface.
Side-Load Resistance
Swash plate and crankshaft piston motor structures generate strong lateral forces under high pressure.
The bearing is designed to withstand these forces while maintaining dimensional stability.
Impact Performance
The product is classified as having high impact resistance.
It supports motor positions exposed to repeated pressure changes, mechanical shock, and heavy torque output.
Load Capacity
The radial static load capacity reaches 280 N/mm².
The reinforced backing helps the Copper Steel Piston Motor Sleeve Bearing remain stable under concentrated loads from the motor shaft system.
Wear Protection
The high-lead bronze inner wall provides low-friction and wear-resistant performance.
It helps reduce wear between the motor shaft and sleeve, supporting stable torque output and longer maintenance intervals.
Precision and Temperature
Bore roundness is controlled within 0.003 mm.
The alloy layer hardness is HB 80–110, and the maximum working temperature is 260°C.
Application Areas
The product is suitable for axial piston motor main shafts and cylinder block guide positions.
It is also used in high-pressure piston motors for construction machinery, metallurgical equipment, and mining machinery.
Customization and Delivery
Production is available according to customer drawings or samples. The minimum order quantity is 100 pieces.
Custom samples normally require 30 days. Urgent samples may be completed approximately five days earlier. Standard delivery is 25–30 days.
Warranty and Payment
A six-month warranty is provided.
The standard payment arrangement is 50% in advance before production and 50% before shipment. The preferred trade term is EXW.
Product Specifications
|
Parameter |
Specification |
|
Material Structure |
Alloy steel backing + high-lead bronze inner wall |
|
Radial Static Load |
≤280 N/mm² |
|
Bore Roundness |
≤0.003 mm |
|
Alloy Layer Hardness |
HB 80–110 |
|
Maximum Working Temperature |
260°C |
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