LDU20 U-Style Transmission

Sauer-Danfoss introduces the LDU20 U-Style Transmission, a complete hydrostatic transmission package for turf care machines, compact utility tractors up to 22 kW (30 hp) and agricultural vehicles.

• Integrates a closed circuit variable displacement piston pump with direct displacement control (DDC) and a fixed motor
• Offers easy-to-install solution with efficiency, low noise and vibration, as well as longevity
• Features closed circuit variable displacement piston pump and fixed motor contained in a single housing with a U-style layout
• Measures 170 mm long, 180 mm wide and 240 mm high, for easy installation in space-constrained equipment
• Includes shaft centerline of 85 mm
• Attaches directly to housing of customer’s transmission, eliminating hosing and piping for space savings and simplified installation
• Uses common charge pump for flow to steering or work function 
• Male slipper design reduces friction from piston-cylinder block-bore interface, improving fuel efficiency, reducing oil temperature and extending oil life, for overall efficiency of 80%
• Reduces noise and vibration to ensure a comfortable working environment and facilitate compliance with applicable noise regulations
• Compact housing, valve plate design and trunnion journal bearing help reduce resonance between swash plate vibration and linkage of vehicle
• Low operating force of maximum 25 N-m at 2,500 rpm, 300 bar further ensures comfort