Specifications
Key Specifications
- Brand: Kawasaki (OEM)
- Part Number: PNJ309ET
- Component Type: Single Row Cylindrical Roller Bearing (Front Position)
- Inside Diameter (Bore): 45.00 mm
- Outside Diameter (OD): 100.00 mm
- Overall Width (Thickness): 25.00 mm
- Cage Material: Glass-Fiber Reinforced Polyamide Plastic Cage (High-Capacity "T" Design)
- Primary Application: Front drive shaft support for Kawasaki M5X180 swing motor assemblies
- Equipment Compatibility: Extensively utilized in heavy excavator machinery overhauls
Product Overview
The PNJ309ET Front Bearing is a premium, heavy-duty single-row cylindrical roller bearing engineered to match strict Kawasaki OEM manufacturing specifications. This high-capacity front shaft bearing is specifically designed to support the main drive line configuration inside heavy equipment hydraulic systems, most notably the Kawasaki M5X180 series hydraulic swing motors. Featuring an extra-load design with integrated inner ring flanges, it absorbs punishing radial forces and limits axial displacement under intense torque. It serves as a vital direct-fit replacement component engineered to optimize shaft rotation, damp severe mechanical vibration, and prevent premature internal component wear.
