125-4403 655 mm OD Track Sprocket

Cat® Track Sprocket for Undercarriage Frames

SKU: 125-4403 Categories: ,

Description

The undercarriage frame sprocket transfers power from the vehicle's powertrain to the track chain, allowing the vehicle to move. As the sprocket rotates, its teeth mesh with the links of the track chain, driving the chain forward or backward. This rotation creates motion in the track chain, propelling the vehicle in the desired direction. It transmits engine power to the track system and converts rotary motion into linear motion. It ensures efficient power transmission and provides the torque needed for the vehicle to travel over a variety of terrain, including soft soil, rough surfaces, and uneven ground.

Attributes

Ensures compatibility with the intended vehicle.

Withstands strong forces and friction during operation, with excellent durability and wear resistance.

Designed to withstand heavy loads and deliver reliable performance in demanding applications.

Applications

The undercarriage frame sprocket helps tracked vehicles move smoothly and under control. It is primarily used on Cat® 320, 320D, 323D, 325, 325D, 329D, 330D, 336D, 345C, C6.6, and C7.1 OEM applications, and 320, 323, 323F, 325C, 329E, 330, 330D, and 330F Excavators.

Specifications

Undercarriage SystemHD
Number of Teeth21
Sprocket Pitch Diameter644.6 mm
Number of Bolts24
Noise Reduction LugsNo
Bolt Thread SizeM20
Inside Diameter410.12 mm (16.15 in)
Backlash10 mm (0.394 in)
Packing Offset Diameter641.6
Tip Diameter655 mm (25.787 in)
Groove Angle62 degrees
Pitch Diameter646
Tooth Width65 mm (2.559 in)
Sprocket Mounting TypeOffset
Pitch190 mm (7.48 in)
Bushing Radius29.4 mm (1.157 in)
Material TypePlain Steel
Bolt Circle Diameter455 mm (17.913 in)
Pressure ReducingNo
Track Shoe TypeExtreme Duty, Single Grouser, Trapezoidal
Width65 mm (2.56 in)
Outside Diameter655 mm (25.69 in)
Weight36.5 kg (80.47 lb)
MaterialCast Steel

Compatible Equipment

  • Excavators: 323, 323D L, 329D L, 330D2, 329E, 325D, 345C L

Additional information

Machine Model

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Equipment Type

Part Source

Genuine OEM