CAT 065-9055 RETAINER

CAT 065-9055 is a Caterpillar genuine bearing axial positioning retainer (purely genuine and accurate information, no additional description). It is compatible with the front bearing position of the hydraulic pump drive shaft in C7/C9 engines, and works with the 065-7804 bearing, 065-0629 oil retainer ring, 064-3915 spring, and 065-2745 bearing assembly. It is used to preload the bearing outer ring, limit axial movement, prevent vibration-induced loosening, and ensure reliable transmission and sealing (Cat®…).

Core Parameters and Information

Project Details
Part Model: CAT 065-9055 (0659055) Bearing Positioning Fixture (Flange Type, with Spring Groove + Positioning Stop + Bolt Holes)

Structure Type: Integrated Stamped Flange Fixture (including Outer Ring Preload Ring + Spring Positioning Groove + 3×M8 Bolt Holes + Positioning Stop)

Material: SCM435 Alloy Structural Steel (Quenched and Tempered HRC32-38, Surface Blackening Oxidation Treatment, Rust Resistance ≥96 Hour Salt Spray), Weight: 0.28 kg

Key Dimensions: Flange Outer Diameter: 85 mm, Positioning Stop Diameter: 80 mm, Spring Groove Diameter: 70 mm (Width: 5 mm, Depth: 3 mm), Bolt Hole Distribution Circle Diameter: 80 mm (3×φ8.5 mm, compatible with M8×1.25 bolts), Total Thickness: 10 mm

Performance Parameters: Preload: 1.0-1.2 kN (with 064-3915 spring), Operating Temperature: – 40℃ to 120℃, impact strength ≥10 J/cm², fatigue life ≥10⁶ cycles

Compatibility Standard: Meets SAE J429 Grade 8 strength rating, bolt tightening torque 12-15 N・m, positioning runout ≤0.02 mm

Compatible Models and Assemblies

Compatible Parts: 065-2745 bearing assembly, 065-7804 bearing, 065-0629 oil retainer ring, 064-3915 spring, 064-2311 washer, 352-0618 drive shaft

Compatible Equipment: CAT 320D2/323D2/329D2 excavators, 950K/966K loaders, D6T/D7E bulldozers (C7/C9 engines), for positioning and preloading the front bearing of the hydraulic pump drive shaft using Cat®. …Installation Kit: 065-9055 Retainer + 064-3915 Spring (3 mm pre-compression) + 065-2745 Assembly / 065-7804 Bearing + 065-0629 Oil Retainer Ring + M8×16 Socket Head Screws (3 pieces, tighten diagonally)

Installation and Maintenance Points:
Clean the mating surfaces of the retainer and bearing housing, checking for deformation, cracks, or thread damage. Ensure the spring groove and locating stop are free of burrs.

First, install the 064-3915 spring into the retainer groove. Then, align the retainer stop with the bearing outer ring, fitting it against the bearing housing end face, and insert the M8×16 screws.

Tighten the screws evenly diagonally to 12-15 N·m, checking that the bearing axial runout is ≤0.10 mm and that there is no jamming or abnormal noise during rotation.

Maintenance: Check for deformation of the fastener (flatness ≤ 0.10 mm) and loose bolts every 2000 hours. Replace if cracks, deformation or stripped threads are found.