JF-800 Bimetallic self-lubricating bearings-Products

JF800 Bimetallic self-lubricating bearings

The JF-800 bimetallic composite bearing is made of high-quality low-carbon steel as the substrate, and the surface is sintered with copper alloys (CuPb10Sn10, CuPb6Sn6Zn3, CuPb24Sn4, CuPb30, AlSn20Cu, CuSn8Ni) with low friction characteristics as the wear-resistant layer of the bearing. The copper alloy surface can be machined with various types of oil grooves, oil holes, oil cavities, etc. according to the needs of the operating conditions, to be suitable for situations where continuous or difficult refueling is not possible. The material can achieve good bonding strength and optimal load-bearing capacity through secondary sintering and secondary extrusion.

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Technical specifications

Overall characteristics	Value	Unit
Basic information
Code name	JF-800
Material	Carbon steel+CuPb10Sn10
Main application areas	Automotive engine connecting rods, construction machinery, agricultural machinery, etc.
Maximum bearing pressure P
Maximum dynamic load	140	N/mm²
Maximum linear velocity V
Grease lubrication	2.5	m/s
Fluid lubrication	5	m/s
Maximum PV value
Grease lubrication	2.8	N/mm²·m/s
Fluid lubrication	10	N/mm²·m/s
Coefficient of frictionμ
Grease lubrication	0.05~0.15
Fluid lubrication	0.04~0.12
Operating temperature
Grease lubrication	150	℃
Fluid lubrication	250	℃
Matching shaft diameter requirements
Hardness HRC	>53	HRC
Roughness Ra	0.32~0.63
Materials and Physical Properties
Alloy layer hardness HB	60~90	HB
Thermal conductivity	47	W/(m·K)
Linear expansion coefficient (axial)	18×10^-6	/K

Bimetallic inner hole machining and non machinable thickness tolerance

Nominal thickness	Inner hole cannot be machined with thickness tolerance	Inner hole machinable thickness tolerance
1.0	-0.025	+0.25 +0.15
1.5	-0.030	+0.25 +0.15
2.0	-0.035	+0.25 +0.15
2.5	-0.040	+0.30 +0.15
3.0	-0.045	+0.30 +0.15
3.5	-0.050	+0.30 +0.15

Product application

Construction machinery: chassis walking mechanism supporting axle sleeve, towing axle sleeve, tensioning axle sleeve; Automotive industry: balance shaft bushings, steel plate pin bushings, steering knuckle main shaft bushings, connecting rod bushings, valve rocker arm bushings, camshaft bushings, differential bushings, transmission bushings, internal combustion engine main bearing bushings, thrust washers; And piston pump side panels, gear pump side panels, etc.

Product classification

Construction machinery

Widely equipped with large engineering equipment such as excavators, loaders, cranes, bulldozers, rollers, pump trucks, rotary drilling rigs, mining machinery, and graders. Mainly used in key parts such as walking mechanisms, slewing bearings, boom hinge points, hydraulic motors, reducers, hoisting mechanisms, track transmissions, hydraulic actuator components, etc.

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Automotive industry

Bearings are the core basic components of vehicle transmission and operation, fully compatible with various vehicle types such as fuel vehicles, hybrid vehicles, new energy passenger vehicles, commercial vehicles, trucks, and buses. Widely used in drive motors, engines, transmissions, wheel hub units, steering systems, chassis suspensions, braking systems, air conditioning compressors, water pumps, fans, differentials, and precision transmission structures for vehicles.

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Smart device

Covering intelligent equipment such as industrial robots, servo motors, linear modules, intelligent robotic arms, CNC equipment, precision testing instruments, intelligent security equipment, smart home transmission components, and automated precision machine tools.

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