Michigan Scientific · wheel torque transducer
TW series wheel torque transducers
Drive and brake torque at the wheel, measured while driving.
High-resolution version, for low torques. TW12.8HRMS175: Datasheet PDF
High-resolution version, for low torques. TW12.8HRMS800: Datasheet PDF
High-resolution version, for trucks. TWHR2000: Datasheet PDF
Small passenger cars, material handling. TW9.5: Datasheet PDF
Passenger cars, SUVs, small vans. TW12.8: Datasheet PDF
- 237 N·m
- Torque capacity
- 14 in and larger
- Rim size
- ± 0.1 % FS
- Non-linearity
- 0.14 N·m
- Resolution
- 1 085 N·m
- Torque capacity
- 14 in and larger
- Rim size
- ± 0.1 % FS
- Non-linearity
- 0.27 N·m
- Resolution
- 2 700 N·m
- Torque capacity
- 22.5 in and larger
- Rim size
- 0.15 % FS
- Non-linearity
- 4 kN·m
- Torque capacity
- 13 to 20 in
- Rim size
- ± 0.1 % FS
- Non-linearity
- 5.4 kN·m
- Torque capacity
- 10 in and larger
- Rim size
- ± 0.1 % FS
- Non-linearity
- 5.4 kN·m
- Torque capacity
- 14 to 20 in
- Rim size
- ± 0.1 % FS
- Non-linearity
- 8.1 kN·m
- Torque capacity
- 14 to 20 in
- Rim size
- ± 0.1 % FS
- Non-linearity
- 9.5 kN·m
- Torque capacity
- 15 to 21 in
- Rim size
- ± 0.1 % FS
- Non-linearity
- 17 kN·m
- Torque capacity
- 16 to 21 in
- Rim size
- ± 0.1 % FS
- Non-linearity
- 67 kN·m
- Torque capacity
- 19.5 in and larger
- Rim size
- ± 1 % FS
- Non-linearity
- 81 kN·m
- Torque capacity
- 19.5 to 25 in
- Rim size
- ± 1 % FS
- Non-linearity
- Output1.5 mV/V nominal · 10 V DC max. excitation
- Temperature compensation24 to 121 °C
- Signal transmissionslip ring or telemetry
01 · The essential
Real torque at the wheel, My, in both directions
A TW transducer measures the actual torque at the wheel, so it sees transmission torque and brake torque alike. The torque rating and the combined steer/camber moment rating are the same, model by model.
Accuracy holds on long drives: temperature-compensated calibration between 24 and 121 °C means repeated hard braking, and the heat it puts into the hub, does not move the reading. Stainless steel and weatherproof sealing take rain, snow, ice and mud.
The high-resolution versions give a finer reading of low torques, to work on friction, grip or consumption.
02 · Specifications
The numbers
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 237 N·m |
| Mechanical stop capacity | 8.1 kN·m |
| Maximum static weight (Fz) | 1 000 kg |
| High resolution | yes |
| Rim size | 14 in and larger |
| Non-linearity | ≤ 0.1 % FS |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 125 °C |
| Protection | IP67 |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 1 085 N·m |
| Mechanical stop capacity | 8.1 kN·m |
| Maximum static weight (Fz) | 1 000 kg |
| High resolution | yes |
| Rim size | 14 in and larger |
| Non-linearity | ≤ 0.1 % FS |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 125 °C |
| Protection | IP67 |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Trucks |
|---|---|
| Torque capacity | 2 700 N·m |
| Mechanical stop capacity | 27 kN·m |
| Maximum static weight (Fz) | 5 000 kg |
| High resolution | yes |
| Rim size | 22.5 in and larger |
| Non-linearity | 4 N·m (0.15 % FS) |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 125 °C |
| Crosstalk from vertical load (Fz) | < 0.5 % FS |
| Protection | IP67 |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 4 kN·m |
| High resolution | no |
| Rim size | 13 to 20 in |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 177 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 5.4 kN·m |
| Maximum static weight (Fz) | 455 kg |
| High resolution | no |
| Rim size | 10 in and larger |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 125 °C |
| Protection | IP67 |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 5.4 kN·m |
| High resolution | no |
| Rim size | 14 to 20 in |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 177 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 8.1 kN·m |
| High resolution | no |
| Rim size | 14 to 20 in |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 177 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 9.5 kN·m |
| High resolution | no |
| Rim size | 15 to 21 in |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 177 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Automotive - LD veh. |
|---|---|
| Torque capacity | 17 kN·m |
| High resolution | no |
| Rim size | 16 to 21 in |
| Non-linearity | ± 0.1 % |
| Hysteresis | 0.05 % FS |
| Operating temperature | −40 to 177 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Heavy-duty - Tractor |
|---|---|
| Torque capacity | 67 kN·m |
| Maximum static weight (Fz) | 4 500 kg |
| High resolution | no |
| Rim size | 19.5 in and larger |
| Non-linearity | ± 1 % |
| Hysteresis | < 0.05 % FS |
| Operating temperature | −40 to 125 °C |
| Protection | IP67 |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
| Vehicle | Heavy-duty - Tractor |
|---|---|
| Torque capacity | 81 kN·m |
| Maximum static weight (Fz) | 6 100 kg |
| High resolution | no |
| Rim size | 19.5 to 25 in |
| Non-linearity | ± 1 % |
| Hysteresis | < 0.5 % FS |
| Operating temperature | −40 to 125 °C |
| Analog output | non-amplified |
| Supply voltage | 10 V DC |
No 3D model for this version.
No drawing for this version.
03 · Configure
Request a quote
Pick the model, how the signal leaves the wheel and what goes with it. The summary becomes your quote request.
No model fits? Unusual bolt pattern or torque range: we build it around your wheel.
04 · Resources
Resources
Datasheets and manuals
Drawings
CAD models
None for TW12.8HRMS175.
Datasheets and manuals
Drawings
CAD models
None for TW12.8HRMS800.
Datasheets and manuals
Drawings
CAD models
None for TWHR2000.
Datasheets and manuals
Drawings
CAD models
None for TW10.8.
Datasheets and manuals
Drawings
CAD models
Datasheets and manuals
Drawings
CAD models
None for TW12.8ER.
Datasheets and manuals
Drawings
CAD models
None for TW12.8.
Datasheets and manuals
Drawings
CAD models
None for TW15.0.
Datasheets and manuals
Drawings
None for TW-2T-12.5K.
CAD models
None for TW-2T-12.5K.
Datasheets and manuals
Drawings
None for TW-2T-50K.
CAD models
None for TW-2T-50K.
Datasheets and manuals
Drawings
None for TW-2T-60K-S.
CAD models
None for TW-2T-60K-S.
05 · Applications
Related applications
-
Durability Wheel loads on the road Three forces and three moments at each wheel, recorded while the vehicle is driven. -
Efficiency Vehicle efficiency and power mapping Torque and speed measured at each driveline stage, from engine to wheel, so each power loss has a location. -
Efficiency Brake drag and rolling resistance Low drag torques at the wheel, read on the road with a resolution of 0.14 N·m on cars and SUVs. -
Powertrain Truck solid axle torque Drive torque on a truck solid axle, read by strain gages inside the shaft and brought out at the wheel.
06 · Related
If torque at the wheel is not the one
- Need all six components LW series wheel force transducers
Fx, Fy, Fz, Mx, My, Mz from 15.5 to 700 kN.
- Torque on the shaft instead Wireless telemetry
Strain gaged half shaft and a clamp-on transmitter, no wheel adapters.
- Torque at the power take-off PTO torque transducers
Torque and speed of a PTO shaft, up to ±5 000 N·m.
A question on this product?
Wheel, vehicle, expected torque. An application engineer answers.
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