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Shaft Style Optical Transmission Method

TMOS Series

  • Optical transformer method non-contact type torque transducer
  • Low noise through digital signal transmission (ground brushless)
  • Improved stiffness and durability using the latest structural analysis technology
  • Easy to improve the performance and increase capacity of the existing unit because of same size
  • Improve long term stability by applying a special gage
  • Equipped with bearing mechanism therefore installation of intermediate shaft is unneccessary
CAD Files TMOS-3KNM, 5KNM (185KB)
Rated capacity
±3 kN・m, ±5 kN・m
Safe overload
150% R.C.
Ultimate overload
200% R.C.
Rated output
0 V ~ ±10 V
Accuracy of detected value
±0.1% R.O. (including non-linearity, hysteresis and repeatability)
(with MINEBEA's transmitter CSA-562B)
Maximum rotation
8.000 rpm
Temp. range, safe
-10 ℃ ~ 80 ℃
Temp. effect on zero
0.1% R.O./10 ℃
Temp. effect on output
0.1% R.O./10 ℃
Zero point shift by rotation
0.5% R.O. p-p (at WB=1 kHz)
Temperature rise by rotation
Double bearing: 60 ℃ or less at maximum speed
Single bearing: 40 ℃ or less at maximum speed
Response frequency
1 kHz or more at opened shaft end
Inertia moment of rotor
241.9 kg・cm2
Class of protection
IP40 or equivalent
Rotor part: Alloy steel
Stator part: Alloy steel + Aluminum alloy
Weight of rotor
Approx. 19 kg
Total weight
Approx. 80 kg
List of Part Numbers
Part Number
Rated Capacity
3 kN・m
5 kN・m
Transmitter for torque transducer with optical transmission method (CSA-562B)