JF-800 Bimetallic Bearing

JF-800 Bimetallic Bearing JF-800/720/700/20/930 Bimetallic self-lubricating bearing used high quality low-carbon steel plate as base, sintered porobronze as its surface, suitable for rotatory oscillating, reciprocating movements on the conditions of high load.low speed, low friction, well wear resistance, long lifetime and better prevent from holding-on.The bronze layer surface can be machined with various of grooves.

Introduction

JF Bimetallic bearings to high-quality low-carbon steel substrate, the surface of the sintered copper alloy having a low friction characteristics (CuPb10Sn10, CuPb6Sn6Zn3, CuPb24Sn4, CuPb30, AlSn20Cu, CuSn8Ni) as a wear layer bearing copper alloy surfaces can be processed in accordance with the use of a variety of conditions need type tank, oil hole, oil hole, so as to fit in unsustainable fuel refueling or difficult situations. Secondary extrusion material through the secondary sintering can be a good bonding strength and optimum carrying capacity.

Material Characterisitc

Material Trademark	Alloy Composition	Alloy Hardness	International Standard
JF-800	CuPb10Sn10	70~100 HB	SAE-797/GLYCO 66/JIS-LBC3
JF-720	CuPb24Sn4	45`70 HB	SAE-797/GLYCO 68/JIS-LBC6
JF-700	CuPb30	40~60 HB	US SAE-48/JIS-KJ3
JF-20	AlSn20Cu	30~45 HB	SAE-783/GLYCO 74/JIS-AJL
JF-930	CuPb6.5P0.1	69~90 HB

Technical Data

Data		JF-800	JF-720	JF-700	JF-20	JF-930
Max Load Capacity P N/mm²		150	130	120	100	150
Tensile Strength N/mm²		185	150	200	200	185
Max Sliding Speed m/s		5	10	10	25	5
Friction Coefficient μ		0.06~0.14	0.06~0.16	0.08~0.16	0.08~0.17	0.06~0.16
Max PV Value N/mm²·m/s	Grease Lubrication	2.8	2.8	2.5	-	2.8
Max PV Value N/mm²·m/s	Oil Lubrication	20	10	8	6	-

Application Characteristics

Material Trademark	Applicable Conditions	Applications
JF-800	Very good resistance to fatigue strenth, with high shock resistance and good corrosion resisitance.	Fit for middle load, high speed, bushes,washer and connecting rod bearing in internal combustion engine used in machinical equipment and high shock bushing.
JF-720	Good resistance to fatigue strength and high load capacity,good performance of sliding, liable to be corrupted by lubricationg oil.	middle load middle speed, principle axis of internal combustion engine.
JF-700	Good resistance to fatigue strength,load capacity, shock resistance and corrosion.	Principle axis of internal combustion engine, connecting rod bushing.
JF-20	Good performance of anti-seizing, covering eyewinker, soft alloy be plated on working surface.	High speed, middle or low load, principle axis internal combustion engine
JF-930	Moderate fatigue strength, and load capacity, good performance of bearing sliding.	High speed, low load, internal combustion engine half bearing, bushing used in compressing and refrigerating machine.

Tolerances Of Machined And Non - machined Thickness

Nominal Thickness	Tolerances+ of Series B (non-machinable)	Tolerances of Series C (non-machinable)
0.1	-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

Applications

Construction machinery: chassis walking wheel bearings, towing wheel sleeve, tension wheel hub;
Automotive industry: balance shaft bushings, steel pin bushings, steering shaft main Shaw sleeve, connecting rod sleeve, valve rocker sleeve, camshaft sleeve, differential bushings, gearbox bushings, internal combustion engine main bearing , Thrust washers;
As well as the side of the piston pump, gear pump side pieces.

Chemical Properties

SF-2 surface polymer chemical resistance, so its corrosion resistance depends on the steel back and the appearance of electroplating. The back surface of copper or tin plated steel, can effectively prevent atmospheric corrosion; if working in corrosive media, steel back can be galvanized and so on.