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477-7938
| Availability: | |
|---|---|
Product Specification: Track Roller
| Item | Specification |
|---|---|
| Part Number | 477-7938 (or 4777938) |
| Product Name | Track Roller |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Caterpillar 6060, 6060HD Hydraulic Mining Shovel |
| Application | Supports machine weight and guides track chain |
| UC System | Heavy Duty (HD) |
| Carrier Roller Compatible | No (This is a Bottom/Lower Track Roller) |
| Outside Diameter | 21.457 inches (545 mm) |
| Diameter Flensa | 21.46 inches (545 mm) |
| Width | 6.87 inches (174.5 mm) |
| Hub Width | 23.425 inches (595 mm) |
| Hub Diameter | 17.913 inches (455 mm) |
| Bushing Bearing Inner Diameter | 9.271 inches (235.5 mm) |
| Bore Diameter | 9.497 inches (241.2 mm) |
| Mounting Bolt Axial Spacing | 33.858 inches (860 mm) |
| Mounting Bolt Traverse Spacing | 14.961 inches (380 mm) |
Note:
This track roller (bottom roller) is a critical load-bearing component for the Caterpillar 6060 and 6060HD ultra-class hydraulic mining shovels.
Supports the full static and dynamic weight of the machine, guiding the track chain and reducing friction during travel.
Features a heavy-duty (HD) design with large outside diameter (21.457 inches / 545 mm) for exceptional load capacity.
Precision-machined bearing surfaces with hardened tread for maximum wear resistance in abrasive mining conditions.
Specific mounting bolt spacing (axial: 33.858 inches / 860 mm; traverse: 14.961 inches / 380 mm) ensures proper installation.
Manufactured from high-strength alloy steel with advanced sealing systems to prevent contamination and retain lubrication.
Due to its extreme size and weight (estimated 800+ kg), specialized heavy lifting equipment and strict installation procedures are mandatory.
Please verify exact compatibility with your specific machine serial number and undercarriage configuration before installation.
If you need specification sheets for other undercarriage components (carrier rollers, idlers, sprockets, track shoes), please feel free to let us know.
