Description
CAT 5P-5015 BEARING
| CAT 5P-5015 BEARING |
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| CAT 558-5027 BEARING -SEM |
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| CAT 616-2394 SLEEVE |
The CAT 5P-5015 is a genuine Caterpillar needle roller bearing (with cage/outer ring), suitable for 3116, 3406, and 3406C engines, as well as equipment such as the 953C track loader and 583R pipelaying machine. It is used for supporting engine gear trains, idler shafts, or hydraulic pump drive shafts, bearing high radial loads, and is suitable for medium-to-low speed, space-constrained transmission conditions.
Core Technical Parameters
Item Details
Part Model: CAT 5P-5015 (5P5015) Needle Roller Bearing, Original Part Number, No Official Direct Replacement
Material: Bearing steel (SAE 52100/SUJ2), Outer ring/needle roller integrally hardened (HRC 60-64), Cage is phenolic resin/low carbon steel, suitable for engine oil lubrication environment
Key Dimensions: Inner diameter 38.1mm (1.5in), Outer diameter 50.8mm (2in), Width 12.7mm (0.5in), Needle roller diameter 3mm, Quantity 12, Radial clearance 0.008-0.012mm, Shaft fit tolerance h6, Seat bore fit tolerance H7
Compatible Models: CAT 3116, 3406, 3406C engines; 953C track loader, 583R Pipe laying machine, used for supporting idler shafts and balance shafts in engine gear chambers, and for supporting the front end of hydraulic pump input shafts.
Performance Parameters: Rated dynamic load 22kN, rated static load 35kN, limiting speed 6000r/min (oil lubrication), operating temperature -30℃ to 150℃, suitable oil pressure 200-400kPa.
Core Functions and Structure:
High radial load capacity: The needle roller structure has a large contact area, suitable for compact shaft systems, supporting the periodic radial loads borne by idler shafts, balance shafts, etc., preventing shaft deformation, and ensuring gear meshing accuracy and transmission efficiency.
Compact space adaptation: The design features no inner ring/thin outer ring (depending on the model), significantly saving installation space, suitable for narrow cavities such as engine gear chambers and hydraulic pumps, simplifying the assembly structure.
Stable guidance and low friction: The cage precisely positions the needle rollers, reducing friction and wear between the needle rollers. Combined with engine oil lubrication, an oil film is formed, suppressing vibration and noise, suitable for the commonly used speed range of 1000-2000r/min. Installation and Maintenance Points
Installation Specifications
Clean the journal, housing, and bearing to remove oil and metal shavings. Check the journal surface roughness Ra ≤ 0.8μm, ensuring no rust or scratches.
Cold-fit installation (apply pressure to the outer ring end face using a special sleeve). Do not strike the needle rollers or cage. After installation, check radial clearance and rotational flexibility to ensure no jamming.
Before installation, ensure the oil passages are clear. After assembly, add engine oil for pre-lubrication to avoid dry friction during startup.
Maintenance Recommendations
Every 1200 working hours, check: engine oil metal shavings content and bearing operating temperature (≤90℃). If the engine oil contains a large amount of metal shavings, disassemble and inspect the bearing for wear.
During engine overhaul, this bearing must be replaced. Simultaneously check the journal wear. If wear exceeds 0.05mm, repair the journal or replace the entire bearing assembly.
