CAT 587-9135 110.0mm Inner Diameter Ball Bearing

The CAT 587-9135 is a Caterpillar genuine single-row deep groove ball bearing with an inner diameter of 110.0 mm. It is used in transmission/rotating components of engineering machinery, providing radial and dual-directional axial load capacity. The following is structured raw data and does not include replacement parts information.

Core Technical Parameters (Raw Data)

Item Details
Basic Attributes
Model 587-9135, type is single row deep groove ball bearing (open, no seal), material is chromium bearing steel (AISI 52100), outer ring/inner ring/balls are quenched and tempered, hardness HRC 60-64, cage is stamped steel, single weight 2.8 kg, working temperature -40℃ to +120℃, lubrication method is grease lubrication, suitable for medium and high speed rotation conditions (≤3600 r/min), used in gearbox output shaft, drive axle differential, fan pulley, etc.

Key Dimensions
Inner diameter 110.0 mm (4.331 in), outer diameter 190.0 mm (7.480 in), width 36.0 mm (1.417 in), chamfer 1×45°, radial clearance C3 (0.018-0.040 mm), inner diameter tolerance P0 (H7), outer diameter tolerance P0 (h7), journal surface roughness Ra≤0.4 μm, mounting surface perpendicularity≤0.02 mm
Compatible Models and Parts: Compatible with Cat 336D2 and 349D2 excavators, 966M and 972M loaders, and 140M and 160M graders’ gearbox secondary shaft, drive axle input shaft, and hydraulic pump drive end. One piece per part. Bears radial load + light bidirectional axial load. Suitable speed ≤3600 r/min.
Performance Parameters: Rated radial dynamic load 112 kN, rated radial static load 78 kN, limiting speed (grease lubrication) 3600 r/min, fatigue life ≥12000 hours, coefficient of friction ≤0.0015 (grease lubrication), rated axial load capacity ≥15 kN, operating temperature range -40℃ to +120℃
Structural and Performance Advantages: AISI 52100 Bearing steel material: Quenched and tempered, possessing high hardness and excellent wear resistance, suitable for high-frequency vibration and impact conditions in engineering machinery, reducing the risk of pitting and spalling.

Deep groove ball joint design: Capable of simultaneously withstanding radial and bidirectional axial loads, suitable for rotating parts subjected to multi-directional forces, ensuring smooth operation and low noise (≤65 dB).

C3 radial clearance configuration: Reserved for temperature compensation clearance to prevent jamming due to thermal expansion during high-speed operation, suitable for medium- and high-speed conditions, improving operational reliability.

Original manufacturer compatibility guarantee: Manufactured by Caterpillar, dimensions and mounting positions are perfectly matched, avoiding assembly difficulties or premature wear due to tolerance deviations, ensuring equipment operational stability.

Installation and Maintenance Points (Original Data)

Installation Procedure: Clean the bearing, journal, and bearing housing. Install using hot mounting (oil temperature 80-100℃) or cold mounting (journal cooled to -20℃). Do not strike directly. After installation, check the radial clearance to be 0.018-0.040 mm, ensuring smooth rotation. Tighten the bearing housing bolts (M16×1.5, grade 10.9) to a torque of 180 N·m.

Maintenance Cycle: Check the grease condition every 500 hours, replenish with Cat 1U-8886 grease every 1000 hours, and check the bearing clearance every 8000 hours. Replace the bearing if the clearance exceeds 0.10 mm.

Common Troubleshooting: Insufficient lubrication leading to ball bearing burnt requires inspection of the lubrication system and grease replenishment; uneven load causing localized wear requires correcting the installation positioning and replacing the bearing; journal scratches require repair or replacement to prevent accelerated damage to the bearing inner ring.