Compact Gearbox Travel Drive Motor Rexroth GFT Final drives motor for excavators below: 
GFT13T2, GFT17T2, GFT17T3, GFT24T3, GFT26T2, GFT36T3, GFT40T2 GFT50T2 GFT50T3, GFT60T3, GFT80T3, GFT110T3, GFT160T3, GFT220T3, GFT330T3, GFT450T3, GFT650
GFT17W2, GFT17W3, GFT26W2, GFT36W3, GFT50T3, GFT60W3, GFT80W3, GFT110W3
and Rexroth swing drive motor: GFB17T2, GFB17T3, GFB26T2, GFB36T3, GFB50T3, GFB60T3, GFB80T3, GFB110T3   
GFT Travel Reducer Motor GFT13T, GFT17T, GFT24T, GFT36T, GFT50T, GFT60T3, GFT80T, GFT110T, GFT160T, GFT220T, GFT330T , its compact structure, it could be used in the severely hard installation conditions, The advanced designs as well as the process technology guarantee the high bearing capacity and the operation liability. Our GFT series speed reducers can meet replacement of original Bosch-Rexroth standards.
Their principal features and most significant advantages technical performance below: 
1.Compact dimensions, space-saving, two/ three-stage planetary gear design2.Modular design of gear unit 
3.Robust bearing system absorbing the forces exerted by the ring gear 
4. Simple mounting and ease of maintenance 
5.High performance 
6.Long operation life 
7.Integrated multiple-disk holding brake 
8.Low-noise running
Details regarding the choice of hydraulic fluid:     
The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature: in a closed circuit the circuit temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range - the shaded area of the selection diagram. We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X °C an operating temperature of 58 °C is set. In the optimum operating viscosity range (shaded area) this corresponds to the viscosity classes VG46 or VG66; to be selected: VG66. Please note: The case drain temperature, which is affected by pressure and speed, is always higher than the circuit temperature. At no point in the system may the temperature be higher than 110 °C. If the above conditions cannot be maintained due to extreme operating parameters, please consult us.