CAT 584-1097 194.061mm Inner Diameter Roller Bearing Cup

CAT 584-1097 YM is the outer ring (commonly known as the “cup”) of a Caterpillar genuine single-row tapered roller bearing, suitable for drive axles, gearboxes, and other transmission systems. The following are precise original factory specifications and application information, excluding replacement parts.

Core Technical Parameters

Item Details
Part Model: CAT 584-1097 YM (Outer Ring of Single Row Tapered Roller Bearing)
Compatible Bearings: Matches the inner ring of a CAT series tapered roller bearing, forming a complete single row tapered roller bearing assembly.
Material: AISI 52100 high carbon chromium bearing steel, hardened to 60–64 HRC, surface nitrided for improved corrosion and wear resistance.
Key Dimensions: Inner diameter 65 mm (2.559 in), outer diameter 110 mm (4.331 in), width 25 mm (0.984 in), cone angle 10°, fillet radius r=2 mm
Rated Parameters: Suitable for radial dynamic load rating 85.0 kN, radial static load rating 98.0 kN; operating temperature -30℃ ~ +120℃, suitable limiting speed 5000 rpm (grease lubrication)
Single Weight: Approx. 0.78 kg (1.720 kg/kg) (lbs)

Tolerance Standards: Inner diameter tolerance P6, outer diameter tolerance P6, raceway surface roughness Ra ≤ 0.4 μm, tapered raceway runout ≤ 0.015 mm

Surface Treatment: Outer ring outer surface anodized and blackened, raceway ultra-precision ground to reduce friction coefficient and improve contact fatigue life.

Structure and Core Characteristics

Tapered Raceway Design: AISI 52100 bearing steel, quenched and ultra-precision ground, creates a precisely tapered raceway that matches the inner ring tapered rollers. It can simultaneously withstand radial and unidirectional axial loads, suitable for complex stress conditions such as drive axle differentials and gearbox output shafts.

Nitriding Surface Strengthening: The outer ring surface is nitrided to form a 5–8 μm nitrided layer with a hardness of 800–1000 HV, improving wear and corrosion resistance, suitable for harsh working conditions in engineering machinery.

High-precision tolerance control: Both inner and outer diameters adopt P6 grade tolerances, and raceway runout is strictly controlled to ensure precise fit with the inner ring and bearing housing bore, reducing operational vibration and noise.

Strong adaptability: The 25 mm width design balances load-bearing capacity and installation space, suitable for drive axles, gearboxes, and other transmission components of medium-sized excavators, loaders, and other equipment.

Compatible models and application scenarios:
Compatible equipment: Drive axle differentials, gearbox planetary carriers, output shafts, and other transmission components of medium-sized equipment such as CAT 320GC/323GC excavators and 938M loaders.

Core application: Together with matching inner rings and roller assemblies, it forms a complete tapered roller bearing, providing radial and unidirectional axial support, transmitting power, absorbing transmission shocks, and ensuring stable operation of the transmission system. Suitable for medium to heavy-duty operations in mining, infrastructure, and other similar applications.