Galaxie® gearbox miniaturized

  • Miniaturized Galaxie® gearbox with axial function principle

  • In addition to the all-in-one actuator solution, the miniaturized Galaxie® gearbox can also be combined with standard industrial motors. 
    For this purpose, the connection is made via adapter plates and clamping hubs, so that there is theoretically a perfect connection for every motor. 

The most compact hollow-shaft gearbox with the highest torsional rigidity

With the miniaturized Galaxie®, we have taken the functional principle of our classic Galaxie® a step further. The result: innovative kinematics enabling almost full surface contact during power transmission – with an extremely compact footprint. Thanks to this unique concept, the miniaturized Galaxie® performs significantly better than established gearbox types with the same diameter in almost all dimensions. It combines the highest levels of rigidity, torque density and overload capacity with a very large hollow shaft and maintains zero backlash throughout its entire service life. 

Find out more

Downloads

  • Dimensions
  • Technical data
  • Torsional rigidity & bearing
  • Accuracy
  

SAG090

SAG110

Outer diametermm

90

110

Overall length

mm

55.5

59.6

Hollow shaft diameter

mm

31

41

Weightkg

1.5

2.5

 

 

  

SAG090

SAG110

Ratio

 

60

61

Nominal torqueNm

70

120

Max. acceleration torqueNm

150

250

Emergency stop torqueNm

375

625

Max. input speedrpm

4200

3600

 

 

  

SAG090

SAG110

Ct211)Nm/arcmin | 10³ Nm/rad

35 | 120

70 | 240

K31)Nm/arcmin | 10³ Nm/rad

24 | 83

42 | 144

K2 1)Nm/arcmin | 10³ Nm/rad

23 | 79

40 | 138

K11)Nm/arcmin | 10³ Nm/rad

17 | 58

30 | 103

Max. tilting momentNm

150

250

1) Torsional rigidity:
Ct21: Average gradient of the hysteresis in the range of 50 to 100% of Tmax
K1: Average gradient of the hysteresis in the range below 10 Nm for SAG090 and below 15 Nm for SAG110
K2: Average gradient of the hysteresis in the range between 10 and 25 Nm for SAG090 and between 15 and 50 Nm for SAG110
K3: Average gradient of the hysteresis in the range over 25 Nm for SAG090 and over 50 Nm for SAG110

 

 

  

SAG090

SAG110

Hysteresis lossarcmin

0.5

0.5

Lost motion

arcmin

0.3

0.3

Transmission accuracy

arcmin

< 1.5

< 1.5
Repeatabilityarcmin

+- 0.1

+- 0.1

 

 

Your benefits

More precision due to:

  • Extremely high rigidity 
  • Greater damping 
  • Higher machining precision 
  • Absolute zero backlash 

Space and weight savings

  • Downsizing of drive
  • Upgrading of application with unchanged footprint
  • Efficient use of hollow shaft

Maximum safety

  • Safety reserves in case of overload
  • Minimization of downtimes, e.g. due to broken cables in supplied media

Higher productivity

  • Faster and more accurate positioning 
  • Reduced vibrations in system 
  • Minimized cable breakage

Ideally combined with the cyber® kit-line frameless motor from WITTENSTEIN cyber and with further on the market available hollow shaft motors. Connection to different standard servo systems by using specific adapter plate. 

Big hollow shaft, eg. for wiring or for integrating media and / or components 

Special tooth design for high gear ratios with almost complete surface contact



Applications

MINIATURIZED GALAXIE® IN HIGH PRECISION ROBOTICS

MINIATURIZED GALAXIE® IN HIGH PRECISION ROBOTICS

  • Extreme rigidity: high precision in medical or industrial robot
  • High torque and overload capacity for safety purposes and high system robustness 
  • Small footprint: flexibility of system 
  • Easy replacement of existing strain wave or cycloid gearboxes due to output interface compatibility 
     

MINIATURIZED GALAXIE® IN ANTENNAS

MINIATURIZED GALAXIE® IN ANTENNAS

  • Highest rigidity: to keep antenna stable – even with high wind gusts
  • Best positioning accuracy: to position the satellite tracking system
  • Lightweight and compact solution for mobility of antenna

MINIATURIZED GALAXIE® IN MECHANICAL ENGINEERING INDUSTRY

MINIATURIZED GALAXIE® IN MECHANICAL ENGINEERING INDUSTRY

  • Extreme rigidity: enables simultaneous machining 
  • Zero backlash brings higher quality and higher productivity 
  • High torque and overload capacity for potential downsizing in the drive train 
  • Huge hollow shaft facilitates integration of e.g. additional media