HZ804 Copper-plated oil groove bimetallic composite bearing Suppliers, Company

HZ804 Copper-plated oil groove bimetallic composite bearing

The HZ804 Copper-Plated Bimetal Composite Bearing integrates precision-engineered oil grooves into its copper-plated surface, ensuring consistent lubrication distribution in high-friction, low-speed applications. Its dual-layer construction combines a resilient steel backing with a copper alloy lining, delivering superior load-bearing capacity and heat dissipation. The strategically machined oil grooves retain lubricant, reducing metal-to-metal contact and preventing premature wear.

The copper plating enhances corrosion resistance, while the oil groove design supports extended lubrication intervals, even in oscillating or start-stop operations. Its robust build withstands abrasive particles and heavy shock loads, making it a durable choice for demanding industrial applications.Easy to install and requiring infrequent maintenance, the HZ804 ensures cost-effective operation and prolonged equipment service life.

Material Features

Steel-backed lead bronze-lined bearing material for lubricated applications, high load capacity and good fatigue properties, have been widely used in automotive, common industrial-like steering gear,power steering, pedal bushes,king-pin bushes,tallgate pivots, mechanical handling, lifting equipment, hydraulic motors, agricultural machines etc.

Specieications for HZ Steel-Lead Bronze alloys

Material Type	HZ800	HZ720	HZ700	Pb-free HZJ20	Pb-free HZ930
Specification of Bronze	CuPb10Sn10	CuPb24Sn4	CuPb30	AISn20Cu	CuSn6.5P0.1
Equivalent Code	AmericaSAE-797 GermanyGLYCO66 JapanJIS-LBC3 USA SAE-797 GERMANY GL-YCO66 JAPAN JIS-LBC3	AmericaSAE-799 GermanyGLYCO68 JapanJIS-LBC6 USA SAE-799 GERMANY GL-YCO68 JAPAN JIS-LBC3	AmericaSAE-48 JapanJIS-KJ3 USA SAE-48 JAPAN JIS-KJ3	AmericaSAE-783 GermanyGLYCO74 JapanJIS-AJL USA SAE-783 GERMANY GL-YCO74 JAPAN JIS-AJL
Hardness of Bronze alloy HB	70-100	45-70	30-45	30-40	60-90
Allowable Max Dynamic Load N/mm²	65	38	25	30	65
Harhness of mating surface	53HRC	50HRC	270HB	250HB	50HRC
Max.Temperature ℃	260	C	170	150	200
Application Characteristics	The strongest stype, wide application field, most suitable for high-impact vibrating load bushes and washers.	Relative high fatige strengh&load capaity, good sliding performance, poor oil corrosion resistance. Fit for middle load, middle speed. Normally applied in mainbushes of inner-combushtion engine, connecting rod when plated.	Good seizuring resistance, good capacity to submerge foreign, objects. Normally applied in main bearings of high speed. Low to morderate load inner-combustion engine &connecting rod bearing.	Moderate fatige strenth &load capacity good corrosion resistance, relative in half bushs of hlgh speed, low load inner combustion engine, aircompressor, refrigerator bearings,	The HZ930 bearing is a kind of product without lead, Relative high fatige strengh&load capaity, good sliding performance, whose application industry is gradually being expanded.