29537235 Thrust Washer Allison spare parts

29537235 Thrust Washer Allison spare parts

Allison 29537235 thrust washers are core components of Allison transmissions, designed specifically for original equipment manufacturer (OEM) specifications. Their primary function is to withstand axial loads, limit axial movement of components, and reduce mechanical friction. They are widely used in various equipment equipped with Allison transmissions, including heavy-duty trucks, construction machinery, buses, and special-purpose vehicles. They are a preferred alternative to key wear parts that ensure smooth transmission operation and extend the overall service life of the equipment. Their compatibility, wear resistance, and stability far exceed those of ordinary universal thrust washers. They precisely match the OEM installation standards, require no additional modifications, and can be directly and quickly assembled, significantly improving maintenance efficiency.
Allison 29537235 thrust washers strictly adhere to Allison’s original manufacturing processes and quality standards. They are made from high-purity electrolytic copper (Cu≥99.9%) as the base material, combined with highly crystalline natural flake graphite inlay. Employing a “metal skeleton + graphite microporous penetration” composite structure, the copper matrix provides the product with strong mechanical strength and compressive resistance, while the graphite inlay layer achieves stable self-lubrication. This prevents equipment failures such as component jamming and wear caused by lubrication failure from the source. They are particularly suitable for enclosed installation scenarios such as gearboxes where regular maintenance is difficult. The maintenance-free design effectively reduces equipment operation and maintenance costs and downtime losses, improving equipment operational continuity.

Core technical parameters:

– Product Model: Allison 29537235
– Product Name: Thrust Washer (
– Substrate material: High-purity electrolytic copper (Cu≥99.9%) + natural flake graphite (purity≥99.8%)
– Graphite content: 18-23% (can be adjusted flexibly according to working conditions to adapt to different load scenarios)
– Density parameter: 6.9±0.1g/cm³ (uniform texture, excellent compressive strength)
– Hardness standard: HB68-78 (suitable for the high-frequency, high-load operation requirements of gearboxes, not easily deformed)
– Coefficient of friction: 0.07-0.11 (Smooth operation and minimal wear under dry friction conditions)
– Thermal conductivity: ≥195W/(m·K) (Quickly dissipates heat generated during operation, avoiding high-temperature aging)
– Wear resistance: After 100,000 cycles of reciprocating friction testing, the wear amount is <0.04mm, indicating wear resistance and durability.
– Applicable temperature: -45℃~190℃ (suitable for extreme high and low temperature conditions, stable performance, not easy to crack)
– Load capacity: Dynamic load 28.5 N/mm², static load 97.5 N/mm² (can withstand high axial loads and is not easily damaged)
– Structure and shape: Standard circular shape (with a precise mounting hole in the middle to fit the original mounting position for accurate positioning)

Core advantages:

Allison 29537235 thrust washers boast four core advantages that surpass ordinary thrust washers: First, outstanding anti-galling performance. The synergistic effect of the copper matrix and graphite effectively prevents metal cold welding and component adhesion, maintaining good disassembly even under extreme pressure, facilitating future maintenance. Second, strong wear resistance and durability. Their service life is 3-5 times that of ordinary bronze thrust washers, significantly reducing the frequency of parts replacement and lowering equipment maintenance costs. Third, excellent adaptability. They precisely match the Allison 29537235 original model with a dimensional error of ≤0.01mm, making installation convenient and requiring no adjustments before direct use, improving maintenance efficiency. Fourth, corrosion and temperature resistance, and pollution resistance. They can operate stably for extended periods under complex conditions such as dust and oil, effectively protecting the precision components inside the gearbox, reducing equipment failure rates, and ensuring continuous equipment operation.

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