Jost fifth wheel for World Truck

Jost India Auto Components Private Ltd. has supplied the fifth wheel for the Tata World Truck. The fifth wheel essentially provides the link between the tractor and the trailer. It consists of a coupling pin (or king pin) on the front of the semi-trailer and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle (tractor).

Jost has supplied a cast version which has an interchangeable kingpin size (2” or 3.5”). This fifth wheel with a kingpin size of 2” is rated at 28 tonnes. Since the Indian market traditionally uses pressed version, the development was undertaken for cost optimization. This pressed version called the JSK38DV50 has passed all the standard life tests required to ensure reliability, says a Jost spokesperson.

Jost has established a manufacturing facility in Jamshedpur to manufacture fifth wheel. The company has established a state-of-the-art manufacturing facility with a capacity to manufacture 50,000 fifth wheel per annum.