LDU transmissions
An LDU hydrostatic transmission features a U-style layout and contains a closed-circuit variable-displacement piston pump with direct displacement control (DDC) and a fixed motor. Optimized for performance, size, and cost to meet the demands of today's mobile applications, these transmissions are available with displacements between 20 cm3 and 31.5 cm3 [1.22 in3 and 1.92 in3].
Features and benefits
- Easy-to-use design as a complete hydrostatic transmission package for turf care machines and compact utility tractors up to 26 kW [35 PS]
- Compact design
- Single housing with Z-shaft configuration
- Bypass valve to allow the vehicle to be towed
- Best-in-class efficiency, featuring female piston and male slipper design; overall efficiency of approximately 80% is possible
- Improved kit life, higher duty cycle capability while providing the most compact design in this class of hydrostatic transmission
- Low trunnion operating force
Applications
- Turf care machines
- Compact utility tractors
Specifications
| Model | Displacement (cm3) [in3] | Max working pressure (bar) [psi] | Rated input speed (rpm) | Theoretical max output torque (Nm) [lb in] |
LDU20 | 20 [1.22] | 300 [4,350] | 3,400 | 0.32 [195.2] |
LDU21C | 21 [1.28] | 250 [3,626] | 3,600 | 0.34 [207.4] |
LDU24 | 24 [1.46] | 300 [4,350] | 3,400 | 0.38 [234.2] |
LDU32 | 31.5 [1.92] | 300 [4,350] | 3,200 | 0.51 [310.8] |
3232 | 31.5 [1.92] | 300 [4,350] | 3,200 | 0.50 [304.7] |