29552738 Bearing Allison spare parts

29552738 Bearing Allison spare parts

Allison 29552738 bearings, also known as Allison dedicated transmission bearings or precision heavy-duty transmission bearings, are specifically designed for Allison 3000/4000 series and off-road series transmissions. They are core components for Allison transmission overhauls and routine maintenance, widely used in rotating parts of transmission systems in heavy trucks, construction machinery, oilfield equipment, and off-road vehicles. They bear multiple functions, including radial and axial load transmission and rotational support, ensuring smooth power transmission and reducing equipment rotational failures. They are a high-performance, cost-effective transmission consumable for industrial equipment maintenance, and are widely recognized in the industry due to Allison’s superior manufacturing processes and reliability.

Allison 29552738 strictly adheres to ISO mechanical transmission bearing production standards and relevant industry specifications GB/T 3077-2015 and GB/T 308. It also meets the original manufacturer’s technical requirements for Allison transmission systems. From steel selection to forging, precision machining, and heat treatment, it undergoes multiple rigorous tests to ensure that the product’s performance, dimensions, and precision are highly consistent with the original parts. It perfectly fits the rotating mounting position of the transmission, requiring no additional grinding or modification. Its precise positioning and convenient installation significantly reduce installation time and labor costs for maintenance personnel, improving equipment maintenance efficiency. It can be directly used for transmission overhauls and routine bearing replacements.

As the “rotational core hub” of the transmission system, the Allison 29552738 bearing’s core function is to connect the transmission gears, shafts, and other core rotating components, precisely transmit power, bear radial and axial loads, reduce frictional losses during component rotation, and ensure smooth, jam-free, and noiseless operation of rotating parts. It also serves a positioning and support function, ensuring the coordinated operation of internal transmission components and further protecting the safety of critical components such as gears, valve cores, and shafts, indirectly reducing overall equipment maintenance costs.

Core technical parameters:

– Product Model: Allison 29552738
– Material Specifications: GCr15SiMn high-carbon chromium silicon manganese steel, forged in one piece; conforms to ISO mechanical transmission bearing production standards, GB/T 3077-2015, and GB/T 308 specifications, meets Allison’s original transmission requirements, and aligns with high-end bearing material selection standards.
– Surface treatment: Carburizing and quenching + fine grinding and polishing + rust and corrosion prevention treatment, hardness can reach HRC 60-64, surface roughness Ra≤0.15μm, excellent wear resistance, corrosion resistance and fatigue resistance, optimized sealing structure, dust and impurity intrusion prevention, and reduced lubrication loss.
– Dimensions: Precisely fits Allison original specifications, standard inner diameter 48mm, outer diameter 88mm, thickness 22mm (please consult customer service for detailed dimensions), suitable for installation requirements of rotating parts of the gearbox, with a precision level of P6, and dimensional tolerances strictly comply with original factory standards.
– Rated performance: Operating temperature range -40℃~150℃, suitable for complex high and low temperature environments; rated dynamic load ≥60kN, rated static load ≥45kN, excellent load-bearing capacity; operating noise ≤54dB, smooth operation without vibration, low coefficient of thermal expansion, dimensional stability at high temperatures, and retained austenite content <10%.

Core advantages:

Allison 29552738 bearings are specifically designed for the rotary transmission needs of Allison gearboxes. Utilizing precision machining, high-quality GCr15SiMn material, and multiple professional surface treatments, they balance practicality, reliability, and cost-effectiveness. They perfectly replace original bearings and are compatible with various Allison rotary transmission components, completely resolving maintenance pain points such as poor compatibility, easy wear, insufficient load capacity, high operating noise, and poor sealing associated with general-purpose bearings. Whether purchased in bulk for equipment overhauls, routine maintenance, or for single-unit emergency replacement, this product provides stable and reliable rotary transmission protection, ensuring long-term, safe operation of equipment.

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