CAT 458-9965 150mm Outer Diameter Torque Converter Needle Bearing

CAT 458-9965 is a Caterpillar genuine full complement needle roller bearing for torque converters, with an outer diameter of 150 mm. It is used to support the input shaft and turbine shaft of the transmission torque converter. The following is the structured original data, excluding replacement parts information.

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes
Model 458-9965, type is full complement needle roller bearing (without cage), material is bearing steel GCr15, outer ring is quenched and tempered, hardness HRC 60-64, inner ring hardness HRC 58-62, surface phosphated, single weight 2.35 kg, operating temperature -30℃ to +120℃, suitable for torque converter input shaft/turbine shaft, used for high radial load, low speed (≤500 r/min) conditions

Key Dimensions
Inner diameter 110 mm (4.331 in), outer diameter 150 mm (5.906 in), width 35 mm (1.378 in), needle roller diameter 3.5 mm, number of needle rollers 112, needle roller length 32 mm, outer ring wall thickness 10 mm, inner ring wall thickness 10 mm, inner diameter tolerance + 0.025/-0.010 mm, outer diameter tolerance + 0.015/-0.005 mm, width tolerance ±0.10 mm
Compatible Models and Parts: Compatible with Cat 980K/L/M, 982M loaders; D6T, D7E, D8T bulldozers; 345D/E excavators; hydraulic torque converters for C15, C18 engines, installed between the torque converter turbine shaft and pump wheel shaft, used for radial positioning and load transfer, 1 unit per torque converter.
Performance Parameters: Radial rated dynamic load 380 kN, radial rated static load 1250 kN, limiting speed 500 r/min, lubrication method is oil bath lubrication, suitable lubricant viscosity ISO VG 32-68, working clearance 0.05-0.12 mm, impact load ≤1500 kN, fatigue life ≥10000 kN Hourly
Structural and Performance Advantages
Full complement needle roller design: Cage-free structure with a large number of needle rollers and a large contact area, capable of withstanding extremely high radial loads, suitable for the impact loads during torque converter start-up and shifting.

GCr15 bearing steel material: Inner and outer rings are quenched and tempered, possessing high hardness and wear resistance. The needle rollers are ground, with a surface roughness Ra≤0.05 μm, reducing friction loss and extending service life.

Phosphating surface treatment: Improves corrosion resistance, suitable for the transmission fluid environment, preventing jamming or wear caused by rust.

Original factory precision manufacturing: Strictly controlled dimensional tolerances, perfectly matched with the torque converter shaft system, ensuring rotational accuracy, reducing vibration and noise, and improving torque converter transmission efficiency.

Installation and Maintenance Points (Original Data)

Installation Procedure: Clean the bearing and mounting location. Heat the outer ring to 80-100℃ (hot mounting method). Quickly install into the bearing housing. After cooling, check the clearance. After installation, add transmission fluid, ensuring the fluid level submerges the bearing by 1/3 of its height. Check for smooth rotation and axial movement.

Maintenance Cycle: Check the bearing’s operating condition every 3000 hours, including temperature (≤80℃), vibration (≤0.5 mm/s), and noise. Change the transmission fluid every 6000 hours, and check for bearing wear at the same time.

Common Troubleshooting: Abnormal bearing noise is often due to insufficient lubrication, requiring fluid replenishment. Excessive temperature may indicate excessive clearance or deteriorated fluid, requiring clearance adjustment or fluid replacement. Worn or broken needle rollers require replacement with a new bearing. Check for proper installation to avoid uneven loading.