CAT 513-9232 BEARING AS

CAT 513-9232 is a Caterpillar integral cylindrical roller bearing assembly designed specifically for steering knuckles, balance beams, and rocker arm shafts in heavy-duty equipment such as the 992K/992G loaders and D10/D11 bulldozers. It is used to withstand heavy radial loads and medium axial loads, suitable for low-speed oscillating/rotating conditions (linear velocity ≤ 0.8m/s), and features high wear resistance, impact resistance, and fatigue resistance. The following are the core information:

Core Parameters
Item Details
Basic Attributes
Model 513-9232, integral cylindrical roller bearing assembly with cage and seals, used for positioning shafts and primarily bearing radial loads, suitable for the oscillating/rotating mechanisms of heavy-duty equipment, with a certain degree of self-lubrication.

Compatible Models
Cadm D10T/D10R, D11T/D11R heavy-duty tracked bulldozers, 992G/992K wheel loaders, suitable for balance beam pins, steering clutch shafts, rocker arm shafts, etc.

Material and Manufacturing Process Inner/outer rings are made of high-carbon chromium bearing steel (GCr15), with a hardness of HRC 60-64; the cage is made of stamped steel plate; the seal is made of nitrile rubber (NBR); operating temperature -30℃ to +120℃, requiring periodic replenishment of lithium-based grease (NLGI 2).

Key Dimensions: Inner diameter 127.00mm (5.00in), outer diameter 190.50mm (7.50in), width 63.50mm (2.50in), weight approx. 8.2kg, mounting hole tolerance H7 (+0.05mm~+0.07mm), shaft clearance 0.06-0.10mm.

Functional Parameters: Radial rated load 1800kN, axial rated load 450kN, fatigue life ≥8000 hours, interference fit mounting (interference 0.06-0.09mm), compatible pin diameter. 127.00mm, possessing excellent impact and dust resistance.

Matching Components: Compatible pins 101-6070, retaining rings 152-8071, seals 156-7234. Installation requires a hydraulic press-fit machine (pressure ≥120kN). It is recommended to use anti-loosening washers and Loctite 243 thread-locking adhesive.

Installation and Maintenance Points:

Preparation before installation: Clean the mounting hole and bearing outer surface, removing burrs and oil stains; check the bearing for cracks, deformation, and rust; measure the mounting hole diameter and bearing outer diameter to ensure the interference fit is within specifications; use a dedicated press-fit tool, and do not strike the bearing end face.

Installation Steps: Apply a small amount of grease to the bearing outer surface and press it smoothly into the mounting hole (press-fitting force ≥100kN), ensuring the bearing end face is flush with the mounting hole end face; install the pin, ensuring the coaxiality between the shaft and bearing is ≤0.05mm; install the retaining ring to fix the bearing and prevent axial movement.

Maintenance and replacement: Check the bearing radial clearance every 2000 hours (replace when ≥0.25mm); replenish lithium-based grease every 500 hours through the grease nipple (approximately 8g each time); replace the bearing immediately if it shows wear, peeling, abnormal noise, or leakage from the seals.