CAT 584-1159 BEARING-CONE-GD

CAT 584-1159 GD is a high-precision inner ring for Caterpillar tapered roller bearings, commonly used in heavy-duty rotating parts such as final drives and slewing bearings in excavators, loaders, and other equipment. It is suitable for medium-to-high speed and combined radial and axial load conditions. The following is the core technology and application information for Cat®…:

Core Technical Parameters

Item Details
Part Model: CAT 584-1159 (5841159) GD High-Precision Tapered Roller Bearing Inner Ring (Compatible with 584 series tapered roller bearings, matching outer ring 584-1160, compatible with NLGI 2 lithium-based grease)

Core Material: GCr15SiMn bearing steel, integrally quenched, hardness HRC 60–64, raceway surface ground, surface roughness Ra≤0.4 μm, tapered surface contact accuracy IT5 grade

Key Dimensions: Inner diameter 63.5 mm, outer diameter 95.25 mm, width 25.4 mm mm, cone angle 10°, single weight approximately 0.85 kg (1.87 lb)

Rated Load: Compatible bearing dynamic rated load 150 kN, static rated load 220 kN, limiting speed 2800 rpm, operating temperature -30℃ to +120℃

Compatible Models: CAT 336GC excavator (final drive), 966M loader (drive axle), 349GC excavator (slewing bearing)

Suitable Operating Conditions: Medium to high speed rotation, continuous operation, capable of withstanding radial + bidirectional axial combined loads, suitable for moderate impact conditions

Core Functions and Structural Features:

High Precision Adaptation: GD high precision grade, uniform contact between raceway tapered surface and rollers, high rotational accuracy, smooth operation, reduced vibration and noise.

High Load Capacity: Overall quenching process, excellent raceway hardness and contact precision, suitable for combined load transmission with tapered roller bearings, ensuring the overall load capacity of the bearing.

Precise Installation: The tapered surface design provides an interference fit with the shaft (interference 0.01–0.02 mm). After installation, radial runout is ≤0.02 mm, ensuring transmission accuracy.

Installation and Maintenance Points

Installation Specifications: Clean the inner ring and journal surfaces, ensuring they are free of oil and rust. Use hot fitting (heating temperature 80–100℃) or cold pressing. Control the pressing force at 15–20 kN. Do not strike the end face.

Journal tolerance: +0.005–+0.015 mm. After installation, check for radial runout ≤0.02 mm.

After installation, assemble with the outer ring and roller assembly. Adjust the axial clearance to 0.05–0.1 mm and apply NLGI 2 lithium-based grease.

Maintenance Recommendations: Check the operating status every 1000 working hours, looking for abnormal noises, abnormal temperature rises, and seal leaks.

If pitting, peeling, or wear exceeding 0.1 mm occurs on the raceway, it should be replaced promptly. When replacing, it is recommended to replace the outer ring and roller assembly simultaneously.