Caterpillar 793 Wheels and Rims

The unique design of RIMEX’s TSR series wheels utilizes a taper concept to secure all components in place. Absolute stability of components and the tire is achieved as movement between parts is eliminated. When the tire is inflated, the rim parts lock into their tapered landing areas. The key benefit of the TSR design is absolute tire support. The wheel flanges DO NOT MOVE on the wheel base. The tire is anchored with complete stability and no air pressure is lost. As well as extending tire life, the life of wheel components is increased as there is no wearing or fatiguing of the parts from component movement.

The MES series of rims and components were introduced by RIMEX in 1988 and were the first wheels produced using fully machined sections. With the introduction of radial tires in the marketplace, a stronger wheel was needed that would withstand the increased pressures these tires were transferring onto the rims. RIMEX set out to resolve the quality gap for this specialized market by designing and building the first wheels using fully machined sections for true roundness—known today as our Machined Extreme Service series. RIMEX MES wheels use stronger lock rings, heavier flanges and fully machined precision gutter discs which sets these wheels apart from others.

Mine operators and other industry users of Caterpillar 793 haul trucks quickly found that they could achieve longer tire life with fewer failures and reduced downtime by fitting their 793 fleets with RIMEX MES wheels.

In addition to offering standard 57” 5-piece wheel assemblies for Caterpillar 793 trucks, RIMEX offers MES wheels with Double Gutter Service (DGS) and Integral Gutter Lock Ring (IGLR) components for safer and significantly faster tire changes.

A DeFuzer Valve is a temperature sensitive pressure relief valve (190 psi, 200°F) designed to release potentially lethal air pressure build-up before extreme over-inflation or tire fire situations can occur.

Designed for use on all off-highway tubeless wheels or rims 25” diameter or greater, DeFuzer valves are manufactured to the strict criteria of ASME Section 8 of the National Boiler and Pressure Vessel Inspector Standards and are easily installed in drilled NPT holes. All of RIMEX’s 51” to 63” wheels and rims are pre-drilled to accommodate ¾” DeFuzer Valves. When installed in RIMEX TSR, MES, or IGLR wheels on Caterpillar 793 trucks, DeFuzer Valves increase the safety of truck operators and tire bay workers by preventing dangerous blowouts and tire fires, and extend tire life.

RIMEX designed the Lock Ring Support Stand (LRSS) with safety in mind. The support stand catches single-piece lock rings in the event they spring off wheels or rims during mounting or dismounting operations.

LRSS features:

• Will not dislodge from wheel or rim base when catching lock ring
• Once installed, LRSS can remain in wheel/rim during tire change operations
• Acts as a support eliminating need for personnel to physically hold lock ring during installation
• Single design fits wheels and rims from 45” to 63” diameters
• Configurable adapters available for fitment to various wheel/rim designs
• Robust design weighing 19 lbs / 8.6 kg, 20% lighter than previous RIMEX LRSS models
• Manually telescoping height with finite adjustments
• Hand adjustable tension control

When used during Cat 793 tire changes and wheel fitting operations, the LRSS is a significant safety tool.