TECHNICAL SPECIFICATION: CONNECTING ROD BEARING
Part Number: 107-7330 (1077330)
Manufacturer: Caterpillar (Cat)
Component Group: Engine / Crankshaft & Connecting Rod System
1. Product Summary
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Description: High-performance, heavy-duty standard-size (STD) connecting rod bearing shell designed for precision engine rebuilds. Engineered to provide optimal oil-film retention, maximize load distribution, and reduce rotational friction between the connecting rod journal and the crankshaft.
2. Physical & Dimensional Specifications
- Bearing Size: Standard (STD)
- Outer Diameter (OD): 144.45 mm (5.687 in)
- Bearing Width: 57.10 mm (2.248 in)
- Package Length: 162.56 mm (6.40 in)
- Package Width: 157.48 mm (6.20 in)
- Package Height: 91.44 mm (3.60 in)
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Net Weight: 0.78 kg (1.72 lbs)
3. Material & Engineering Characteristics
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Material Composition: Multi-layer copper/aluminum/lead-bonded alloy on a precision steel backing shell.
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Properties: High fatigue resistance, excellent conformability to minor journal surface irregularities, high thermal conductivity, and anti-corrosive overlay protection against modern diesel engine oils.
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Oil Holes/Grooves: Machined to exact OEM specifications to guarantee proper hydrodynamic lubrication film maintenance under extreme pressure.
4. Engine & Model Compatibility
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Primary Engine Series:
- Diesel: 3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 3520
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Gas: G3508, G3512, G3516
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Equipment Applications: Large mining excavators, heavy off-highway trucks, marine propulsion vessels, rail locomotives, industrial oil/gas pump drives, and commercial generator sets.
5. Interchangeability & Cross-Reference Data
- Supersedes Part Numbers: 7E-7997, 1W-7538, 7N-2394
- Interchangeable OEM Alternates: Interstate-McBee (M-1077330), KMP Brand (107-7330)
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Oversize Options Available: 107-7331 (+0.25mm / 0.010 in), 107-7332 (+0.50mm / 0.020 in)
