Dana Rexroth will launch the high-efficiency R2 hydromechanical variable transmission for smaller machines
Dana Rexroth Transmission Systems, the joint venture Dana and Bosch Rexroth, is to launch the R2 hydromechanical variable transmission (HVT). The modular transmission uses both a hydrostatic drive and a mechanical gearbox to deliver fuel savings of up to 25% compared to a torque converter transmission. Designed to work with engine outputs of 134-193kW (180-260hp), the R2 is suitable for use in wheeled loaders, motor graders, lift trucks and a variety of off-highway applications. The hydrostatic drive unit
February 7, 2013
Read time: 1 min
5378 Dana Rexroth Transmission Systems, the joint venture Dana and 2253 Bosch Rexroth, is to launch the R2 hydromechanical variable transmission (HVT). The modular transmission uses both a hydrostatic drive and a mechanical gearbox to deliver fuel savings of up to 25% compared to a torque converter transmission. Designed to work with engine outputs of 134-193kW (180-260hp), the R2 is suitable for use in wheeled loaders, motor graders, lift trucks and a variety of off-highway applications. The hydrostatic drive unit is mounted outside the mechanical gearbox, for ease of maintenance and the combined HVT can be equipped with up to three power take-offs, including hydraulic drive for cooling fans.
ZF has chosen a pair of radial hydraulic motors for use in its compact single-speed hydrostatic transmission, the 2HC85, which has been developed for compact wheeled loaders up to 100kW and 10.5tonnes operating weight. For high-torque start-up, the transmission sends oil to both motors and demands maximum stroke to travel from 0-16kph, before isolating one motor and then using 100% oil flow through the remaining motor to propel the machine to its maximum travel speed of 42kph. ZF said radial motors afford a
ZF has chosen a pair of radial hydraulic motors for use in its compact single-speed hydrostatic transmission, the 2HC85, which has been developed for compact wheeled loaders up to 100kW and 10.5tonnes operating weight. For high-torque start-up, the transmission sends oil to both motors and demands maximum stroke to travel from 0-16kph, before isolating one motor and then using 100% oil flow through the remaining motor to propel the machine to its maximum travel speed of 42kph. ZF said radial motors afford a
From Oerlikon’s drive brands Oerlikon Graziano and Oerlikon Fairfield comes an array of sophisticated new drive systems for an array of construction machinery applications. The GA rear axle system is a new generation of motor grader axles specifically designed with a complete tandem box. Wet disc brakes are fitted outboard on each wheel hub, which optimises braking performance, provides easier cooling and also meets international safety regulations. The firm’s axle range for graders includes of five differe
From Oerlikon’s drive brands Oerlikon Graziano and Oerlikon Fairfield comes an array of sophisticated new drive systems for an array of construction machinery applications. The GA rear axle system is a new generation of motor grader axles specifically designed with a complete tandem box. Wet disc brakes are fitted outboard on each wheel hub, which optimises braking performance, provides easier cooling and also meets international safety regulations. The firm’s axle range for graders includes of five differe
