Bimetal Bearing

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Steel with Copper Alloy Slide Bearing Bimetal Bushing

Specifications
Technical Data
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■ Specifications

TECHNICS DESIGN

bimetal bearings are widely used in oil lubricating situations. Normally under low speed and oil lubricating situations assemble with grease and work with adding oil periodically, such as suspension, steeping ball joints, brake pedal joints, redirector, connecting rod, slide part punch, etc.

APPLICATION FEATURES

The bearings surface are sintered with CuPbSn10, CuPb24Sn4, CuPb30, CuSn6Zn6Pb3 or AlSn20Cu. The chemical changes of inner alloy layer can make the bearings work well under various load presses, different working temperatures and sliding speeds.

PHYSICAL CHARACTERSTICS OF JF MATERIAL

Performance		Data
Load capacity P	Static load	150N/mm2
Max line speed V	Dry friction	0.4m/s
Max line speed V	Oil lubrication	5m/s
PV value limit	Dry friction	2.2 N/mm2.m/s
PV value limit	Oil lubrication	10 N/mm2.m/s
Friction coef u	Dry friction	<2.2
Friction coef u	Oil lubrication	<0.08
Alloy Hardness		HB30-100
Alloy material		CuPb10Sn10, CuPb24Sn4, CuPb30, CuSn6Zn6Pb,etc

Please directly contact Ms. Susan Shi for inquiry/place order.
susan@slide-bearing.com

■ Technical Data

Bi-metallic composite bearings
Bi-metallic composite bearing material consists of steel backing with lead bronze or lead-free copper alloy (
CuPb10Sn10、CuPb6Sn6Zn3、CuPb24Sn4、CuPb30、AlSn20Cu) lining, bearing material for oil/grease lubricated applications. The copper alloy forms a continuously frame for thermal conductivity. These bearing structures are with high load capacity and good fatigue property. Higher tolerance can be achieved after re-machined from the customers. Lead-free bronze lining bearing material conforms to the European RoHS directive.

Application
Angineering machine: underpan, thrust wheel, Towing wheel, Steering knuckle,tension pulley...
Automotive:trunnion shaft, connecting rod, valve rocker, camshaft, gear box, internal-combustion engine,
And Plunger pump friction plate, gear pump friction plate...

Other Bushings
JDB graphite embedded bronze self-lubricating bearing materials consist of high strength metal with solid lubricants embedded, the metal has high load capacity and solid lubricants provided low friction during the operation, this construction reduces maintenance cost for both bearing and machinery. Based on the above technique theory, we also have steel shell cast bronze with graphite plug bearings for economic and impact load application, steel with graphite plug bearings and dispersed solid lubrication bearings for lower friction applications. Base material including CuZn25AI5Mn4Fe3, CuSn5Pb5Zn5,CuZn25Al5Mn4Fe3, or use the material as your need.

Feature
Allows maintenance-free and long-life operation;
Suitable for high static and dynamic loads;
With low and smoothly coefficient of friction and without stick-slip effects;
Suitable for dirty, corrosion, impact load and edge loading;
The base material provided a good shock-absorbing capacity;
Can be used over a large temperature range;
Suitable for reciprocating, rotating and oscillating movement with start frequency and difficulty to form oil film occasions;
With low wear rate and long life service.

Application
Injection molding machine, automotive moulds, hydrocylinder, gear case, gas turbine, water turbine, Crane support...

Metal-polymer self-lubricating composite bearings
Metal-polymer self-lubricating composite materials consist of metal backing sintered porous bronze with PTFE polymer as working layer. The metal backing provides mechanical strength, while the bronze sinter layer provides a strong mechanical bonding between the backing and the bearing lining, the PTFE polymer offers exceptional low friction even under dry condition and the thermoplastic polymer is generally designed to operate with marginal lubrication. The construction promotes dimensional stability and improves the thermal conductivity. This material meets the demanding criteria for long life and trouble-free performance with or without lubrication.

Application
Automotive: tractors, crop sprayers, earthmovers, auto machines, specific uses in power steering cylinders, steering gear thrust washers, disc brakes, shock absorbers, windshield wiper motor...
Business machines: duplicator, fax machine, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and
other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...And materials handling, marine engine, packaging, textile equipment, tools...etc.

Metal-polymer marginal lubricating bearings
Metal-polymer marginal lubricating composite materials consist of metal backing sintered porous bronze with POM or PEEK polymer as working layer. Steel backing provides exceptionally high load carrying capacity, excellent heat dissipation. Sintered bronze powder provides thermal conductivity away from the bearing surface, also serves as a reservoir for the resin mixture.
And the POM or PEEK polymer layer provides high wear resistance and low friction even with only minute volume of lubricant are supplied, this bearing surface carries a pattern of circular indents which should be filled with grease on assembly of the bearing.

Recommended for applications involving intermittent operation or boundary lubrication...
Automotive: Pedal assembly, Balance shaft sleeve, Steering king pin shaft sleeve...
Logistics machine: carrier, chain block, Car crane, packaging machine....And hydraulic motor,Hydraulic cylinders, pneumatic element, agricultural machine...

Bronze Wrapped Bearings
The bearing is made with CuSn8 bronze alloy which is featured with high load capacity and good anti-wearing characteristics. The diamond shape indents on the surface of the bearing serve as oil reservoir to generate oil film for the lubricating during the initial running. The bearings are mainly suitable for agriculture machineries and construction machineries applications.

Application
Agricultural machine, construction machine, crane, underpan parts, conveyor, elevator, winch, planing machine...