The utility model relates to a bulldozer track roller bushing bearing, which relates to a caterpillar running system of construction machinery chassis.The utility model comprises a bulldozer track roller bushing bearing body, and the inner wall of the bulldozer track roller bushing bearing body is uniformly provided with several oil guide grooves.It has excellent self-lubricating, low wear characteristics, can be used in oil, oil leakage, less oil, no oil complex conditions, can maintain long life, low cost, maintenance-free operation.

The undercarriage system

To maintain reliability under the harsh working conditions of construction machinery, Bronzelube.com engineers have designed lighter, more environmentally friendly, more wear-resistant sliding bearings that significantly reduce the noise generated during operation.

Bimetal sliding bearings have a wide range of applications in the undercarriage system of excavators: roller Supporting pulley Guide wheel Walking speed reducer, etc

Flange bimetal bushing feature

High load capacity

Sliding layers with oil grooves or holes can be machined

The steel back can be copper plated

Steel + CuPb10Sn10

1. Sinter bronze powder: good wear resistance and excellent load carrying capacity.
2. Steel backing: provides exceptionally high load carrying capacity, excellent heat dissipation.
3. Copper plating thickness 0.002mm provides good corrosion resistance.

Standard sizes are provided with lubrication grooves on the work surface. For standard bearings, the steel base is usually coated with copper to improve corrosion resistance. The bronze lead layer allows these bearings to be used with relatively long lubrication intervals.

Flange bimetal bearings can be fabricated with a thicker layer of lead bronze for applications where the bearing must be machined after installation. The layer material can be tailored to the specific needs of a particular application.

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• The function of the track roller bushing wheel is to transfer the weight of the locomotive crew to the ground and roll on the tracks.In order to prevent derailment, the track roller bushing wheels shall also be able to prevent the track from moving laterally relative to it.
• The supporting wheel often works in mud, water and ash sand, and bears strong impact. The working conditions are extremely bad, and the rim is easy to wear.
• The requirements of the supporting wheel are: wear-resisting rim, reliable bearing seal, small rolling resistance, etc.

The excavator bushings wheel is one of the four – wheel area, plays the role of supporting weight.

What should we pay attention to when the maintenance of the supporting wheel?

• Wear of wheel body.The reason for this situation is that the steel used is not qualified or the hardness of the material heat treatment is low and the wear resistance is insufficient;
• Oil leakage.The supporting wheel shaft has been rotating through the sleeve, and the wheel body should be lubricated by refueling. But if the sealing ring is not good, it is easy to produce oil leakage. In this way, the shaft and the sleeve are easy to wear without lubrication, causing the product to be unable to be used.

Replace the bulldozer track roller bimetal bushing bearing wheel

Why must the wheel bushing be lubricated and maintained?

Supporting wheel and guide wheel, walking gear, tug wheel and track together constitute the four wheel area of the paver walking system. Supporting wheel plays the role of bearing the weight of the whole paver.

What is the reason for the early wear of the bulldozer track roller excavator wheel bushings?

Small excavator construction earthwork is small, often need to long distance self-transfer to the work site.Due to the frequent and long distance walking of small excavators, bulldozer wheel bushing is often worn early.

• When frequent and long distance walking, the support wheel bushings
• The pressure on the friction surface of the floating sealing ring is too large. When the lubricating oil is diluted, the friction surface of the floating sealing ring is scratched, recognized to oil leakage of the floating sealing ring.
• The high temperature accelerates the aging deformation and elasticity decrease of the O-ring at the floating seal ring, resulting in oil leakage of the O-ring.
• After the oil leakage of the floating seal ring and O-ring, the wheel shaft, copper sleeve and other parts were worn.
• The lubricating oil chamber formed by the wheel body and the end cover is too small, and the lubricating oil stored is less. When the lubricating oil deteriorates and leaks, the wheel shaft and the copper sleeve cannot be fully lubricated.