Compact shaft type torque transducer TMRS series

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We offer a comprehensive lineup of optical transmission torque transducers, including flange-type (TMHS/TMHFB/TMOFB) and shaft-type (TMOS/TMRS) models.
In addition to low-noise performance, a space-saving design, and high-speed rotation capabilities, these models provide high rigidity and excellent fatigue resistance for long-term, stable operation.
Furthermore, pairing them with our dedicated strain gauges and amplifiers ensures superior precision and long-term reliability.

Features

・Strain gage type Optical transmission method torque transmitter
・High zero stability and reduced rotational zero movement
・Compact and lightweight design
・Ultimate overload 500%F.S.
・High Responsive 6kHz
・A/Z function performs zero point correction

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Specification name	Specification contents
＜load characteristics＞
Rated capacity	±0.5N・m、±1N・m、±2N・m
Safe overload	500 %R.C.
Measurement accuracy	±0.03 %R.O.(Linearity, hysteresis and repeatablity are included)
＜input characteristic＞
Power supply	DC24V±15％
Power consumpson	0.2A or less
Torque output	±10 V voltage output, load resistance 2 KΩ min
Torque output measurement frequency range	6 kHz
rotational pulse output	4-pulse output per revolution rotaion,open collector output,Rated DC30V 10mA
＜Temperature characteristics＞
Temp. range, safe	-20 ℃ to 60 ℃
Note for temperature range	-10 ℃ to 50 （non-condensing）
Temp. effect on zero balance	0.1 %R.O./10 ℃
Temp. effect on output	0.1 %LOAD/10 ℃
rotational characteristic
Max. rpm	25 000 rpm
＜other＞
Material	Sensor shaft: stainless steel; bearing housing: stainless steel; housing: aluminium alloy
Durability	10,000,000 times with rated load applied
Gross weight	Approx.240
Class of protection	IP40
＜Mechanical characteristics(rotor)＞
Inertia moment	0.5 N・m：1.46 kg・mm²、1.0 N・m：1.48 kg・mm²、2.0 N・m：1.52 kg・mm²
Torsional rigidity	0.5 N・m：236 N・m/rad、1.0 N・m：318 N・m/rad、2.0 N・m：531 N・m/rad
Torsional peculiar pitch	0.5 N・m：5.01 kHz、1.0 N・m：5.67 kHz、2.0 N・m：6.61 kHz

Click the arrow icon in the table below to switch from ascending to descending order.

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Parts No.	Rated capacity [N･m]	Maximum rotation speed [rpm]	Mechanical characteristics Inertia moment [kg･cm²]	Mechanical characteristics Torsional rigidity [N･m/rad]	Mechanical characteristics Torsional peculiar pitch [KHz]	Accurate allowable bending load [N]	Accurate allowable thrust load [N]	Cable	3D CAD files [STEP]	Weight(Approx.) [g]
TMRS-0.5NM	±0.5	25000	1.46	236	5.01	50	5	Crimped terminal AI-TWIN2*0.5-8WH	TMRS(cable)	240
TMRS-1NM	±1	25000	1.48	318	5.67	60	10	Crimped terminal AI-TWIN2*0.5-8WH	TMRS(cable)	240
TMRS-2NM	±2	25000	1.52	531	6.61	70	20	Crimped terminal AI-TWIN2*0.5-8WH	TMRS(cable)	240

・Accurate permissible bending and thrust loads are those loads (measured values) with an output error of 0.05% R.O.
・Accurate permissible bending loads are the result of fixing the enclosure and applying the load on the axis of rotation 33 mm from the enclosure end face.
・All values are guaranteed for static loads.