The Steel Sleeve Bushings Bimetallic Bearing-720 is a high-performance bearing solution designed to provide superior wear resistance and durability in a wide range of industrial applications. The bimetallic construction combines the strength and rigidity of steel with the self-lubricating properties of a softer metal alloy, resulting in a bearing that can handle heavy loads, high speeds, and even oscillating or reciprocating motions.

The outer steel sleeve of this bearing ensures structural integrity and resists deformation under pressure, while the inner bimetallic lining provides a smooth, low-friction surface for rotational movement. This combination of materials allows the bearing to operate efficiently in demanding environments, reducing wear and maintenance requirements.

The Steel Sleeve Bushings Bimetallic Bearing-720 is suitable for applications such as construction equipment, heavy machinery, and other industrial settings where durability and reliability are critical. Its ability to handle extreme conditions and maintain consistent performance over long periods of time makes it a cost-effective choice for many industries.

In addition to its superior performance characteristics, the Steel Sleeve Bushings Bimetallic Bearing-720 is also easy to install and maintain. Its compact design and standard dimensions allow for quick replacement in existing equipment, minimizing downtime and maximizing productivity.

Overall, the Steel Sleeve Bushings Bimetallic Bearing-720 is a reliable and robust bearing solution that offers exceptional value for money for any industrial application requiring a durable and high-performance bearing.

The bimetallic bearings 720 steel sleeve bushing is a bimetal sliding bush with steel bars and sintered CuPb24Sn4 as the surface sliding layer.

 
Due to their high performance characteristics and long service life under low material fatigue and high resilience, they are suitable for medium speeds and loads. 720 sliding bushes are used in the construction and agricultural machinery industries.
Download steel bushing sleeve catalogue BIMETAL BEARINGS CUPB30 CATALOG.pdf

Bimetallic Steel Sleeve Bushing Structure

Steel Backing and Bronze Alloy Overlay
 

Bimetallic Steel Sleeve Bushing Composittion

• Steel + CuPb24Sn4 bronze alloy

Steel Sleeve Bushing Bimetal Bearings-720 Characteristics

• Particularly suitable for high specific loads with oscillating motion and low frequency.
• Applicable in rough operation conditions.
• High load capacity, very good resistance to fatigue strength at higher temperatures.

Bimetal Steel Sleeve Bushing -720 Technical Data

Bimetal Bushing-720 Typical Application 

 
CuPb24Sn4 bimatallic bearings is widely used in High speed, heavy load engine main shaft and transmission gearbox etc.
 

Choose your bimetal bearings material - related bushings

 
Bimetal bearings are suitable for rotating and rocking motion conditions under high load, medium and high speed. In actual application, different alloy layers can be sintered on the surface according to different working conditions. The JF-800, JF-720, JF-700, JF-20, FB08G series of products are derived from this. The material structure, application field and technical parameters are summarized as follows:
 
 

Relevant data	Data	BimetallicBearing -800	BimetallicBearing -720	BimetallicBearing -700	BimetallicBearing -20
	Material	Carbon steel /Steel＋CuPb10Sn10	Carbon steel /Steel＋CuPb24Sn4	Carbon steel /Steel＋CuPb24Sn	Carbon steel /Steel＋AlSn20Cu
In addition to the standard products shown in the catalog, non-standard products can also be provided or ordered according to customer requirements.
Application		The bimetal bearing-800 product is suitable for automobile engines, construction machinery, agricultural machinery, etc.	The bimetal bushings-720 product is suitable for high-speed, heavy-duty internal combustion engine main shafts and transmission gears.	The bimetal bushings-700 product is suitable for high-speed, heavy-duty internal combustion engine main shaft and connecting rod bearings.	The bimetal bushings-20 product is suitable for the main shaft and connecting rod bearings of internal combustion engines, air compressors and refrigerators.
Maximum dynamic load P N/mm2		140	120	120	90
Max. line speed V m/s	Grease	2.5	2.5	2.5	——
Max.PV value N/mm2·m/s		2.8	2.8	2.8	——
Coefficient of friction u		0.05~0.15	0.05~0.15	0.05~0.15	——
Max. line speed V m/s	Fliud	5	10	10	15
Max.PV value N/mm2·m/s		10	10	10	8
CoefficiCoefficient of friction u		0.04~0.12	0.04~0.12	0.04~0.12	0.04~0.12
Maximum temperature ℃	Grease lubrication	150	150	150	150
	Fluid lubrication	250	250	250	250
Matching shaft diameter	Hardness HRC	≥53	≥48	≥45	≥270
	Roughness	0.32~0.63	0.16~0.63	0.16~0.63	0.16~0.63
Alloy layer hardness HB		60~90	45~70	40~60	30~40
Thermal Conductivity W/mk		47	60	60	47
Coefficient of linear expansion (axial)		18×10-6/K	18×10-6/K	19×10-6/K	18×10-6/K

Standard Tolerance Dimension Table