29552706 Roller bearing Allison spare parts

29552706 Roller bearing Allison spare parts

Allison 29552706 roller bearing, also known as Allison special heavy-duty roller bearing or gearbox precision roller bearing, is a core heavy-duty rotary transmission component of Allison gearbox. It is designed specifically for Allison 3000/4000 series and off-road series gearboxes. It is widely used in the high-load rotating parts of the transmission system of heavy trucks, engineering machinery equipment, oilfield equipment, off-road vehicles, etc. It undertakes multiple functions such as radial heavy load transmission and rotation support. It is especially suitable for the working conditions of frequent speed change and high load[3]. It is a core component to ensure smooth power transmission of gearbox and reduce equipment rotation failure. It is also a high-performance special transmission consumable for industrial equipment operation and maintenance.
As the “heavy-duty rotating core hub” of the transmission system, the Allison 29552706 roller bearing plays a crucial role in connecting core rotating components such as gears and shafts in the transmission system. It precisely transmits engine power and leverages the structural advantages of linear contact rollers to efficiently bear radial heavy loads, distribute load pressure, reduce frictional losses during component rotation, and ensure smooth, jam-free, and noiseless operation of rotating parts. At the same time, it also provides positioning and support, ensuring the coordinated operation of internal components of the transmission and further protecting the safety of critical components such as gears, valve cores, and shafts within the transmission, thereby indirectly reducing the overall maintenance cost of the equipment.

We are a direct supplier of Allison 29552706 roller bearings, strictly controlling every production process. Each product undergoes hardness testing, precision testing, wear resistance testing, impact resistance testing, and operational stability testing before leaving the warehouse, ensuring no quality issues. We support bulk customization and in-stock supply. Relying on a complete supply chain system, we can quickly respond to customer procurement needs. We also provide professional after-sales services such as compatibility consultation, installation guidance, and transmission fault diagnosis. We offer professional advice on sealing protection for open bearings, resolving various questions customers may have during procurement and use, making procurement more worry-free and use more reassuring.

Core technical parameters:

– Product Model: Allison 29552706
– Material specifications: GCr15SiMn high carbon chromium silicon manganese steel, one-piece forging; the cage is made of machined brass [1]; it conforms to ISO mechanical transmission bearing production standards, GB/T 3077-2015, GB/T 308 specifications, meets Allison original transmission requirements, and fits the high-end material selection standards of roller bearings.
– 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, smooth operation without jamming.
– Dimensions: Precisely fits Allison original specifications, standard inner diameter 50mm, outer diameter 95mm, thickness 24mm (please consult customer service for detailed dimensions), suitable for installation requirements of high-load rotating parts of gearboxes, with a precision level of P6, and dimensional tolerances strictly conforming to original factory standards.
– Rated performance: Operating temperature range -40℃~150℃, suitable for complex high and low temperature environments; rated dynamic load ≥68kN, rated static load ≥52kN, excellent load-bearing capacity (superior to ordinary ball bearings); operating noise ≤54dB, smooth operation without vibration, low coefficient of thermal expansion, dimensional stability at high temperatures, and retained austenite content <10%.

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