Cat® 115-3697 Front Bearing Housing Assembly for 320, 325, and 330 Series Excavators

Ensure mechanical precision with the Cat® 115-3697 Front Bearing Assembly. Made from high-strength ductile iron, this housing is engineered for Caterpillar 320, 325, and 330 series excavators and 1190T forestry machines. Provides stable support for rotating parts in heavy-duty B2B applications. Global export with professional technical support available.

Technical Specifications 115-3697 - Ductile Iron Front Bearing Assembly for CAT

115‑3697 Front Bearing Assembly — Ductile‑Iron Heavy‑Duty Bearing Support Housing

The Cat® 115‑3697 Front Bearing Assembly is a heavy‑duty structural bearing support housing for CAT construction and forestry machinery. Made of high‑performance spheroidal graphite ductile iron, it provides excellent impact resistance and fatigue strength compared to ordinary gray cast iron. It stably supports rotating shafts and linkage components, ensuring precise alignment and smooth movement under high‑load conditions, widely used in high‑stress working environments such as heavy construction and logging sites.

1. Technical Specifications

Technical ParameterImperial SizeMetric Size
Part Number115‑3697115‑3697
Core MaterialHigh‑Strength Spheroidal Graphite Ductile Iron
Shaft Mounting Bore2.953 in75.0 mm
Bearing Mount Length12.756 in324.0 mm
Dowel Pin Hole Diameter0.551 in14.0 mm
Overall Outer Dimensions15.906 × 6.89 × 4.075 in404.0 × 175.0 × 103.5 mm

2. Machine Compatibility

This OEM‑precision front bearing assembly fits mainstream CAT medium‑heavy construction, forestry and power‑generation equipment:

  • Excavators: 320/C, 323, 325D L, 329E, 330/GC/D2 L, 333, 336D LN Series

  • Forestry Machinery: 1190T‑2391 Feller Bunchers, TK721‑TK722 Harvesters, 322C Log Loaders

  • Hydraulic Power Units: 325D, 330‑352F Series Mobile Hydraulic Power Stations

  • Power‑Generation Equipment: 3512B Generator Sets & Custom Undercarriage Systems

3. Key Features & Advantages

  • Superior Ductile‑Iron Toughness: Spheroidal graphite material absorbs heavy‑impact vibration, effectively preventing housing cracking and extending service life of internal bearings and shafts.

  • Precision‑Machined Mounting Holes: Strictly manufactured to CAT original tolerances, realizing vibration‑free stable assembly of shafts and bearings.

  • Uniform Force‑Bearing Design: Large contact area evenly disperses radial and axial loads, reducing local friction and wear of moving parts.

  • Heat & Corrosion Stability: Optimized metallurgical structure resists temperature‑cycle impact and environmental corrosion, adapting to variable‑condition construction scenarios.

Commercial Reference Information
Product: Ductile‑Iron Front Bearing Support Assembly
Cross Part Number: 1153697
MOQ: 1 Unit
Warranty Period: 6‑12 Months
Note: Professional coaxiality alignment required during installation

For bulk wholesale, technical consultation and mechanical structural component solutions:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]

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