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Komatsu D475A-5 Track Frames

Komatsu D475A-5 Track Roller Frames | K-Bogie Undercarriage Side Frames

OEM-spec heavy-duty track roller side frame assemblies for Komatsu D475A-5 / D475A-5EO 100-tonne super mining dozers. Constructed from heavy box-section steel with K-Bogie flexible undercarriage suspension mounts, pivot shaft sleeves, and enclosed recoil tensioner channels.

Description

OEM-Quality Komatsu D475A-5 Track Roller Frame Assemblies

Ensure optimal track link alignment, superior ground traction, and maximum undercarriage component life in severe mining operations with heavy-duty Komatsu D475A-5 Track Roller Frames. Engineered specifically for Komatsu D475A-5, D475A-5EO, and D475A-5SD (100-tonne operating weight class) crawler dozers, these heavy box-section steel side frames support the machine weight while oscillating over uneven rock strata.

Designed around Komatsu’s resilient K-Bogie flexible undercarriage suspension, these track frames allow the bottom rollers to pivot independently, maintaining maximum track shoe pad contact on uneven bench surfaces and insulating the main frame from heavy impact shock loads.

Key Features & Benefits

  • Resilient K-Bogie Undercarriage Suspension Mounts: Articulated bogie mountings allow track rollers to flex over rock obstructions, reducing impact shock loads to final drives and improving track shoe ground contact.

  • Heavy-Section Structural Steel Box Construction: Fabricated from thick, high-tensile steel plate welded into rigid box-beam sections that resist bending, bowing, and torsional twisting under heavy side-ripping loads.

  • Elevated Sprocket Drive Geometry: Positioned to align perfectly with the elevated final drive hub, isolating drive gears from track roller frame ground shock.

  • Precision-Machined Pivot Shaft & Equalizer Bar Sleeves: Factory line-bored mounting points feature heavy-wall bushings to absorb severe lateral forces during hard-pivot turns.

  • Guarded Recoil Spring & Track Adjuster Cavities: Fully enclosed internal channels house recoil spring mechanisms and hydraulic track tensioning cylinders, protecting them from silica slurry and rock buildup.

Verified Technical Specifications

Parameter Specification
Compatible Machine Models Komatsu D475A-5 / D475A-5EO / D475A-5SD Super Dozer
Dozer Operating Weight Class 102,500 – 108,000 kg (225,970 – 238,100 lbs)
Suspension Architecture Resilient K-Bogie Flexible Undercarriage System
Track Rollers per Side Frame 8 Bottom Rollers per Side (Suspended K-Bogie Mounts)
Track Gauge 2,770 mm (109.1 in)
Length of Track on Ground 4,525 mm (178.1 in)
Standard Track Shoe Compatibility 710 mm (28 in) / 810 mm (32 in) / 910 mm (36 in)
Application Undercarriage Crawler Side Structure, Roller & Idler Guidance