Powertrain for bidirectional travel

Differential powertrain

With the differential drive, the vehicle is steered by speed differences of the two rigid drive wheels – similar to the principle of a chain vehicle. Swivel casters at the front and/or rear keep the system stable. Disadvantages include restrictions on maneuvering capabilities, load distribution and longer times required for complex maneuvers.

  • Inexpensive mechanics
  • Limited maneuverability
  • Lower payload
  • Straight and reverse travel
  • Rotating around the center axis possible

Differential powertrain with turntable drive

With a differential powertrain with turntable drive, the drives of the turntable drive are installed on a slewing gear. The differential powertrain on the 2nd axis provides additional propulsive power and a more precise steering.

  • Dynamic even with high loads
  • High tolerance for load distribution
  • More precise steering and positioning
  • Smoother travel behavior than with a differential powertrain

Powertrain with single-turntable drive

With a single turntable drive, the drives are installed on a slewing gear. The slewing gear also has a position encoder. The rotary movement can occur at standstill or during travel. The turntable drive allows for small turning circles and smooth vehicle movement.

  • Even force distribution to the drives
  • Rotation at standstill with low friction
  • Enables precise maneuvering
  • Medium requirements on the floor, with switch if required

Travel/steering powertrain

A travel/steering drive consists of a driven swivel caster and a steering drive. The load is distributed via two non-driven fixed casters.

  • Inexpensive and easy
  • Good load distribution
  • Mean maneuverability
  • Low payload
  • Space requirement for steering drive
  • Increased abrasion during alignment