Description
CAT 9S-2390 RETAINER A
| CAT 9S-2390 RETAINER A |
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| CAT 240-5114 Self Aligning Bearing |
| CAT 9T-3882 BEARING AS |
| CAT 439-7584 BEARING |
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| CAT 586-7419 BEARING-CONE-GD |
The CAT 9S-2390 is a Caterpillar original equipment manufacturer (OEM) alternator/alternator end frame retainer assembly. It is used to secure the alternator end cover to the bearing and is compatible with the alternator systems of engine sets, loaders, excavators, and other equipment. The following is precise OEM part information:
Core Technical Parameters
Item Details
Part Model: CAT 9S-2390 (9S2390) Alternator End Frame Retainer Assembly, weighing approximately 0.12 kg (0.26 lb). Includes a mounting base, locating pin, and elastic retainer ring. It is a modular structure suitable for positioning and securing the alternator front end cover bearing.
Core Materials: Mounting base (40Cr alloy steel, tempered hardness HB 240-270); Locating pin (45# steel, surface anodized); Elastic retainer ring (65Mn spring steel, Rockwell hardness HRC 42-48), galvanized and passivated for corrosion protection.
Key Dimensions: Inner diameter 35 mm, outer diameter 52 mm, total height 18 mm mm, locating pin diameter 6 mm, length 12 mm, retaining ring groove diameter 48 mm, groove width 1.2 mm, fixing seat bolt hole diameter 8 mm, 3 evenly distributed.
Suitable operating conditions: Engine generator front cover bearing positioning and axial fixation, suitable for vibration, high and low temperature conditions, used to fix the bearing outer ring and prevent bearing movement during operation, suitable for generator systems of engines such as 3406E and C15.
Suitable models: CAT 3406E engine (compatible with 7W-2455 generator), C15 engine (compatible with 10R-2882 generator), 966H loader, 320D excavator, 140M grader, and other equipment equipped with corresponding generators.
Supporting parts: Compatible bearing 125-2903, generator end cover 10R-2883, fixing bolt 6V-7852, gasket. 8T-4126 Core Functions and Structural Features
Precise Positioning: Modular structure with locating pins and mounting bases ensures bearing coaxiality, reducing operational vibration and noise, suitable for high-speed generator operation.
Reliable Fixation: Elastic retaining rings provide axial preload to prevent bearing axial movement, suitable for impact and vibration conditions, ensuring stable generator operation.
Easy Installation: Modular design requires no special tools, allowing for quick on-site assembly, shortening maintenance time, and suitable for emergency equipment repair scenarios.
Strong Corrosion Resistance: Surface galvanized passivation treatment, suitable for humid and dusty conditions, extending component lifespan and reducing rust-related failures.
High Compatibility: Compatible with multiple CAT generator models, highly versatile, and suitable for generator systems with different power outputs.
