278-9540 Double Flange Track Roller
Cat® 241 mm Diameter Double Flange Track Roller
Description
The double flange track roller is a component of the undercarriage system. It distributes the weight of the machine and the load it carries evenly over a larger surface area, reducing ground pressure and minimizing the risk of sinking or getting stuck in soft or uneven ground conditions. It consists of a cylindrical metal body, a center shaft, and two flanges (one on each side). The flanges are arranged symmetrically and are slightly larger in diameter than the center body.
Attributes
Designed to withstand heavy loads.
Resists wear and deformation.
Ensures proper alignment and prevents excessive slack.
Applications
Double flange track rollers enable equipment to travel over a variety of terrain and work efficiently. Widely used on Cat® 227 Tree Harvesters; 229, 235, 235B, 235C, 235D, 320, and 322 Excavators; 517, 527, and D5H Skidders; 566, 572R, 578, 583R, 583T, 587R, 587T, PL72, PL83, and PL87 Pipelayers; 924G, 936, 936E, IT18, IT18B, IT28, and IT28B Wheel Loaders; 963 and TR35 Powertrains; 963, 963B, 963C, 973, 973B, and 973C Track Loaders; and D5H, D6H, D6R, D7H, D7R, D8, D8L, D8N, D8R, D8T, D9N, D9R, and D9T Track-Type Tractors.
Specifications
| Application | Oil Resistance |
|---|---|
| Undercarriage System | HD |
| Diameter | 241 mm (9.5 in) |
| Length | 240 mm (9.45 in) |
| Bolt Size | 1/2 mm (1/2 in) |
| Flange Diameter | 275 mm (10.83 in) |
| Weight | 221.95 kg (489.32 lb) |
| Flange Type | Double Flange |
| Tread Diameter | 241 mm (9.49 in) |
| Outer Flange Diameter | 275 mm (10.827 in) |
| Mounting Width | 326.16 mm (12.841 in) |
| Inside Spacing | 97 mm (3.819 in) |
| Shaft Length | 456 mm (17.953 in) |
| Mounting Bolt Lateral Spacing | 90 mm (3.543 in) |
| Compatible Carrier Roller | No |
| Link Outside Spacing | 251.2 mm (9.89 in) |
| Shaft Outside Diameter | 58 mm (2.283 in) |
| Mounting Cap Bolt Thread Size | M24 |
| Mounting Bolt Axial Spacing | 410 mm (16.142 in) |
| Mounting Cap Bolt Hole Diameter | 24.5 mm (0.965 in) |
Compatible Equipment
- Dozers: D8R, D8T, D8








