Engine connecting rod bushes made from high tin aluminum alloys offer superior performance and durability in demanding automotive applications. These bushes, also known as big-end bearings or crankpin bearings, play a crucial role in the efficient and reliable operation of internal combustion engines.

High tin aluminum alloys, typically containing a significant percentage of tin (Sn) along with aluminum (Al) and other alloying elements, are chosen for their excellent wear resistance, fatigue strength, and thermal conductivity. These properties ensure that the connecting rod bushes can withstand the high temperatures, pressures, and dynamic loads generated by the reciprocating motion of the piston and connecting rod.

In addition to their material properties, the precision manufacturing process ensures that the connecting rod bushes fit precisely into the connecting rod and crankshaft journals. This precise fit reduces friction and wear, improving engine efficiency and durability.

The use of high tin aluminum alloys in engine connecting rod bushes has become increasingly common in modern automotive engines, particularly in high-performance and racing applications. These bushes are able to meet the demanding requirements of these engines, providing superior reliability and durability under extreme operating conditions.

Overall, engine connecting rod bushes made from high tin aluminum alloys are an essential component for ensuring the smooth and efficient operation of internal combustion engines. They provide superior wear resistance, fatigue strength, and thermal conductivity, making them a reliable choice for a wide range of automotive applications.

Engine Connecting Rod Bush High Tin Aluminum

The development trend of sliding bearing materials was pointed out, which was to develop the unleaded bearing materials and speed up research and development in new materials and technologies.

Internal combustion engine connecting rod bush bushing, bimetallic tin aluminum alloy bearing, JF-20 high tin aluminum axle bush bearing

The inner diameter
39 (mm)
Outer diameter
44 (mm)
The thickness of the
46 (mm)

Product Introduction

Aluminum bushing, steel bronze bimetal bushes, composite bush has a combination of high strength, load-bearing capacity, and the advantages of good wear resistance. Particularly suited to medium-speed and low-speed high-contained set and so on.

High tin aluminum bearing, is based on steel matrix, the surface of roller AISn20Cu material products. This product has secondary fatigue strength and bearing capacity, good corrosion resistance, good sliding properties, etc. This product is used for medium and small power of internal combustion engine bearing shell machine collar axis, the train engine bearings, air, is replacing babbitt novel products.

Technical Data

Thickness Tolerance Between Inner Hole Machining And Non-machining

Application Field

Engineering machinery: end of popular institutions supporting wheel shaft sleeve, towing axle sleeve, tensioning shaft sleeve; Auto industry: the balance shaft lining, steel pin bushing, steering knuckle main shaft sleeve shaw, connecting rod bushings, valve rocker arm shaft sleeve, CAM shaft collar, differential bushings, transmission shaft sleeve, the internal combustion engine spindle watts, thrust washers, And plunger pump side piece, such as a piece of gear pump side.

Oil Holes Form

Buckles Form

Bimetal bushings Standard dimensions Chart

This is a made-to-order product that we do not keep inventory for. Additional construction work for oil grooves and lubrication channels may be required depending on the actual conditions of use.