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GETTING THE DRIVELINE RIGHT Meritor are looking to maximise efficiency and durability when it comes to driveline specification, and have come up with a solution for some of the tougher line-haul freight tasks.
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t is a constant battle for both truck makers and buyers to get the specification just right for the transport task they are needed for. There are so many variables, all of which will interact with each other to effect performance and durability. This was the issue which Meritor were considering when looking at drive axle specification in prime movers. When discussing the issue with truck buyers, the market was looking for better fuel economy, lower operating temperatures, lower cost, improved warranty and tight fit differential bolts. At the same time, the drive axle specification has to be suited to a wide variety of tasks, different tasks have slightly different needs. The decision was made by Meritor to offer two options, one mainly for line-haul and another for the vocational. Each would be specified to meet the
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POWERTORQUE May/June 2022
“OPERATORS CAN CHOOSE BETWEEN A STRAIGHTFORWARD LINE-HAUL TANDEM AXLE, SUITABLE FOR CLEARLY DEFINED LINE-HAUL B-DOUBLE AND SINGLE OPERATIONS, WITH SPECIFICATIONS DESIGNED TO MAXIMISE EFFICIENCY, INCLUDING PUMPLESS OPERATION.” different demands of each application. Operators can choose between a straightforward line-haul tandem axle, suitable for clearly defined line-haul B-double and single operations, with specifications designed to maximise efficiency, including pumpless operation. The vocational drive tandem axle includes a specification for high spec pinion bearings and tight fit crown wheel bolts, and includes pump and diff lock options on both axles. This is clearly
targeted to suit multiple applications and in particular heavy duty vocational applications where customers are looking for reliability.
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