01 Nov, 2025
TRA code usually has a letter followed by a number. The letter indicates the type of machine the tyre can be used on, while the digital number the tyre’s tread depth.
| Service | Vehicles | T.R.A. CODE |
Loader and Dozer | Shovels Loaders Bulldozers | L-2 |
| L-3 | ||
| L-4 | ||
| L-5 | ||
| L-5S | ||
Earthmover | Dump Trucks Coal haulers Scrapers | E-3 |
| E-4 | ||
| E-7 | ||
Grader | Graders | G-2 |
| G-3 | ||
Compactor | Tire-rollers![]() | C-1 |
| C-2 | ||
Industrial | Mechanical handling Equipments![]() | IND3 |
| IND4 | ||
| IND5 |

As vehicle cabins become quieter, tire noise has become one of the main sources of unwanted sound, especially at medium and high speeds. Noise-reducing tires are developed to address this issue directly at the tire–road interface, where most road noise is generated. Decibel scale: from quiet to road noise (Source: Continental) Where Tire Noise Comes FromFrom […]
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This research strives to enhance the safety of multi-piece wheel assemblies as injuries and fatalities are associated with their failure, yet information on this topic is limited.Experiments were performed to determine mechanical performance and planar deformation characteristics of several tires to aid in numerical model development. For a 29.5-29 tire, observations included determining vertical versus […]
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