29537435 Rear cover assembly Allison spare parts

29537435 Rear cover assembly Allison spare parts

The Allison 29537435 rear cover assembly, as a core protective sealing component at the rear of the Allison transmission, is hailed as the “rear protection barrier” of the transmission. Its core function is to seal the rear opening of the transmission, protecting critical components such as internal gears, shafts, and bearings from external contaminants such as dust, water, and debris. At the same time, it achieves transmission oil sealing to prevent oil leakage, while also taking into account heat dissipation, support, and positioning functions. It transmits rear loads, absorbs operating vibrations, and avoids transmission failures caused by seal failure or component collisions. This ensures smooth power transmission of the transmission, extends the service life of the entire transmission, and reduces maintenance costs and downtime losses.

Core technical parameters:

-Part Number: Allison 29537435
– Material Specifications: High-quality aluminum alloy (ADC12) or cast iron (HT200) is selected. Aluminum alloy offers significant advantages in lightweight construction, with a tensile strength ≥200MPa, Brinell hardness controlled at HB80-100, and excellent thermal conductivity. Cast iron offers high rigidity and good impact resistance, with a tensile strength ≥200MPa, Brinell hardness controlled at HB180-220, and is wear- and impact-resistant. Both materials are free of harmful components and comply with RoHS and REACH environmental requirements. The surface is anodized or powder-coated, with a roughness Ra≤0.8μm.
– Structure type: Adopts one-piece precision casting/die casting structure; integrated sealing groove, mounting hole and heat sink are integrated into one design, the sealing groove is reserved with a special sealing component installation position, which is compatible with rubber sealing gaskets/oil seals to improve the reliability of sealing and leak prevention; the surface is reserved with precise mounting holes, positioning pin holes and bolt holes, the holes are precision machined and chamfered; the edges are rounded.
– Dimensions: Length 200-400mm, Width 150-300mm, Thickness 15-30mm, Mounting hole diameter φ10-20mm, Hole spacing error ≤0.03mm, Sealing groove width 8-12mm, Dimensional tolerance controlled within GB/T 1804-2000 m level accuracy.
– Performance indicators: Temperature range -40℃ to 220℃; oil resistance grade conforms to GB/T 1226-2010 standard; sealing pressure ≥1.8MPa, protection level up to IP65; compressive strength ≥500MPa.
– Applicable Scenarios: Dedicated to Allison series transmissions, widely used in commercial vehicles, heavy trucks, construction machinery, mining equipment (such as the Allison transmissions in the Terex TR50/TR60 series), and other equipment equipped with Allison transmissions. It is used for sealing, protection, heat dissipation, and support at the rear of the transmission, undertaking the core tasks of sealing and preventing leakage, protecting components, assisting in heat dissipation, and transferring loads. It can be used for original parts replacement, transmission repair and maintenance, and is suitable for complex working conditions such as heavy loads, high-frequency vibration, heavy oil contamination, high temperature and high pressure. It provides a rear protective barrier for the stable operation of core components inside the transmission, helping the equipment to operate efficiently.

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