CAT 122-6632 197mm Inner Diameter Retainer

CAT 122-6632 is a Caterpillar genuine final drive retainer. It’s a ring-shaped structure used for structural support and axial positioning of gears, bearings, shafts, and seals in the final drive assembly, preventing excessive component displacement and ensuring efficient power transmission. It’s compatible with heavy equipment such as excavators and loaders (Cat®…). The following are key information.

Core Technical Parameters

Item Details
Part Model: CAT 122-6632 (Final Drive Fixer, Single Unit, Ring Structure)

Material: 42CrMo alloy steel, tempered and nitrided, hardness HRC 38-42, tensile strength ≥1080MPa, wear-resistant and fatigue-resistant

Key Dimensions: Inner diameter 197mm, outer diameter 235mm, thickness 15mm, number of bolt holes 12, hole diameter 14mm, hole spacing circle diameter 215mm, compatible with Cat® mounting positions for final drives…

Single Weight: Approx. 3.2kg (7.05 lbs)

Performance Characteristics: Positioning accuracy ≤0.03mm, can withstand radial and axial combined loads of heavy equipment final drives, disperses stress, and prevents component wear or failure; suitable for operating temperatures -40℃ to +120℃, vibration-resistant and impact-resistant Cat® …Structure and Core Functions

Ring Support Structure: The ring design provides uniform support, and after bolt fixing, it forms a rigid constraint, preventing axial movement of internal components such as gears and bearings under heavy loads and vibrations, ensuring precise meshing of components and improving transmission efficiency.

Load Dispersion: By dispersing the load through the ring contact surface, local stress concentration is reduced, avoiding premature wear or breakage of components due to uneven stress, and extending the life of the final drive assembly.

Sealing and Protection Assistance: In conjunction with seals, it assists in sealing the internal cavity of the final drive, preventing lubricating oil leakage and the intrusion of external dust and mud, ensuring a lubrication and clean environment for internal components.

Vibration Damping Effect: The ring structure can absorb some transmission vibration, reduce operating noise, improve equipment operating stability, and is suitable for high-frequency start-stop and heavy-load operation conditions of Cat®…

Compatible Models and Application Scenarios

Compatible Equipment: Final drive assemblies of CAT 320D2, 336D2, 349D2 series excavators, and 950M, 966K loaders.

Installation Location: Gear positioning, bearing axial fixation, output shaft sealing end support, etc. within the final drive gearbox.

Core Application: Provides axial positioning and structural support for critical components inside the final drive, preventing component displacement, ensuring power transmission efficiency, adapting to complex operating conditions of heavy equipment, and reducing maintenance frequency (Cat®…).