29549769 spacer, wrbearing Allison spare parts

29549769 spacer, wrbearing Allison spare parts

Allison 29549769 spacer, wrbearing combines the core advantages of precise positioning, tight fit, wear resistance, durability, and smooth operation. It is widely used in Allison gearboxes for heavy trucks, buses, construction machinery, and special vehicles. It is a key component for achieving axial positioning of bearings, controlling clearance, reducing axial movement, and ensuring stable operation of rotating parts of the gearbox.
Allison 29549769 spacer, wrbearing, based on Allison’s original design standards and high-precision manufacturing processes, employs integrated precision molding technology to combine the spacer and bearing support structure. It solves the pain points of ordinary parts, such as excessive clearance, easy wear, inaccurate positioning, and premature failure, making it a high-reliability part choice in Allison transmission repair, overhaul, and remanufacturing. This product uses high-grade bearing steel and wear-resistant alloy materials, and undergoes precision turning, grinding, and heat treatment for strengthening. It has good dimensional consistency and high fitting accuracy, effectively constraining bearing position, compensating for axial clearance, reducing vibration and noise, and improving the smoothness of transmission operation. The product possesses excellent fatigue resistance, impact resistance, oil resistance, and high-temperature resistance, maintaining dimensional stability and functional reliability under continuous high load and variable operating conditions. It reduces faults such as abnormal noise, overheating, and premature wear caused by positioning failure, extending transmission overhaul cycles and reducing downtime and maintenance costs.

Core technical parameters:

Product Model: Allison 29549769
Product Name: Spacer/Wrap Bearing (Bearing Spacer/Positioning Shim)
Compatible models: Suitable for Allison 3000/4000 series and other heavy-duty automatic transmissions, compatible with equipment for heavy trucks, buses, engineering vehicles, special vehicles, etc.
Material: High carbon chromium bearing steel GCr15 / Precision wear-resistant alloy, tempered and surface hardened.
Dimensional accuracy: Outer diameter, inner diameter, and thickness strictly adhere to original manufacturer tolerances; coaxiality ≤ 0.015mm; flatness ≤ 0.02mm.
Surface hardness: HRC 60–64, wear-resistant, pressure-resistant, and not easily deformed.
Operating temperature: -40℃～150℃, suitable for continuous operation over a wide temperature range.
Fit clearance: Original factory standard fit, effectively controlling bearing axial clearance.
Operating performance: Resistant to transmission oil corrosion, resistant to particulate wear, and resistant to impact loads.
Installation features: Direct replacement, no modification required, perfectly matches the original installation location.
Applicable scenarios: Transmission overhaul, assembly, bearing replacement, clearance correction
Executive Standard: Complies with Allison OEM technical specifications; dimensions, performance, and lifespan are comparable to the original manufacturer.

Allison 29549769 spacer/wrbearing is manufactured strictly according to Allison’s original technical requirements. All dimensions, hardness, precision, and wear resistance have undergone rigorous testing to ensure complete interchangeability and seamless replacement with original parts. Installation is simple and straightforward. With high stability, durability, and cost-effectiveness, the product meets the needs of repair shops, parts suppliers, exporters, and fleet maintenance, serving a wide range of industries including logistics, municipal sanitation, construction, and emergency rescue. It provides reliable bearing positioning and clearance assurance for Allison transmissions, improving transmission system reliability and lifespan, making it the preferred part for transmission maintenance.

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