195-21-32510BUSHING

Core application areas
As the core component of the transmission and walking system of bulldozers, bushings are widely used in the following scenarios:
Crawler bulldozer: used for connecting shaft sleeves of walking components such as support wheels and guide wheels, to withstand ground impacts and loads.
Special working condition models: such as wetland bulldozers, plateau bulldozers and other specialized equipment, their liners need to have wear-resistant and corrosion-resistant characteristics to adapt to complex environments such as mud and low temperature.
Heavy engineering scenario: In high-intensity operations such as mining, water conservancy, and national defense engineering, the lining needs to maintain the stability of the transmission system to ensure the continuous and efficient operation of the bulldozer, and the key characteristics of the bulldozer lining

Wear resistance: It needs to withstand high loads (especially hard soil, rock and other working conditions) and frequent friction during bulldozer operation. The material is usually selected as high-strength alloy or surface hardened treatment (such as quenching, chrome plating).
Corrosion resistance: The working environment is often muddy, rainy, or dusty, requiring a certain degree of corrosion resistance. Some bushings may be treated with galvanizing or coating.
Self lubrication: Some bushings have built-in lubrication grooves or use oil containing composite materials (such as powder metallurgy) to reduce maintenance frequency and adapt to lubrication needs under harsh working conditions.
Dimensional accuracy: The clearance between the mating components (such as pins) needs to be strictly controlled. If it is too large, it may cause looseness and vibration, while if it is too small, it may get stuck and affect the flexibility of the action.