DSH 155

Inline Series H represents new hollowshaft „Inline“ series of rotary actuators DriveSpin. 

All components of the actuator are arranged in the axis with new TwinSpin G serie hollowshaft reduction gear. The static tube enables customer to lead wires, other shaft or different mechatronic distribution system  through non-rotating hole of actuator and protects it from possible damage by rotation of the input shaft. 

Designed arrangement of components aims to provide solution with the shortest axial lenght hand in hand with the largest hollowshaft. Series is also intended to fullfill special demands of customers with variety of sensors, brake options and electrical connection types.


  • largest hollowshaft in class
  • short axial length
  • high torsional and tilting stiffness
  • high torque
  • high repetitive precision
  • optimal design solution


Actuator rating table - DSH 155*

Reduction ratio Rated output torque

Acceleration and braking output torque

Rated input speed of the reduction gear Maximum allowed input speed of the reduction gear  Tilting stiffness 1) 5) Torsional stiffness 1) 6) Maximum lost motion Maximum tilting moment 2) 3)  Rated radial force 2) Maximum axial force 2) 4) Reduction gear maximum allowed temperature 
 i TR [Nm] Tmax [Nm] nr [rpm] nmax  [rpm] Mt  [Nm/arcmin] kt  [Nm/arcmin] LM [arcmin] Mcmax [Nm] FrR [kN] Fa max [kN] [°C]
109 260 650 2000 4000 920 67 <1.0 1640 8,3 26,1 65


*Hollowshaft diamter = 40 mm

  1. Mean statistical value. For further information, see Chapter 9, Tilting Stiffness and Torsional Stiffness.
  2. Load at output speed 15 rpm.
  3. Tilting moment Mc max value at Fa=0. If Fa≠0 see Chapter 9, Tilting Moment, of this document.
  4. Axial force Fa max value at Mc=0. If Mc≠0 see Chapter 9, Tilting Moment, of this document.
  5. The parameter depends on the high precision reduction gear model.
  6. The parameter depends on the high precision reduction gear model, reduction ratio, and lost motion value.
  7. Moment of inertia and Weight. For further information, see Chapter 9, Moment of inertia and Weight, of this document.

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