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TW-2T-12.5K wheel torque transducer

TW-2T-12.5K wheel torque transducer TW series

Wheel torque transducer for pickups, vans, SUVs and light and medium trucks, 16,948 N·m (12,500 lbf·ft) full scale, for single or dual 16 in and larger wheels.

16 948 N·m
Torque capacity
16 in and larger
Rim size
0.1 % FS
Non-linearity
  • Sensor4-arm strain gage bridge
  • Hysteresis≤ 0.05 % FS
  • Signal transmissionslip ring or telemetry

Wheel torque transducer for single or dual wheels, 16,948 N·m

The TW-2T-12.5K is a wheel torque transducer that gives one channel of torque data. A four-arm strain gage bridge, of 180 Ω or 525 Ω, measures up to 16,948 N·m (12,500 lbf·ft), which is also its combined steer/camber moment rating. The stainless steel body is weatherproof sealed and adapts to single or dual 16 in and larger wheels. The output is 1.5 mV/V nominal at up to 10 V excitation, with non-linearity of 0.1 %, hysteresis and repeatability of 0.05 % of full scale. It is temperature compensated from 24 to 121 °C and usable from −40 to 149 °C, or 177 °C short term.

The hub adapter fastens to the inner bolt circle of the transducer and the rim adapter to the outer one; both are made from a profile of the original rim and duplicate its critical dimensions. The weatherproof slip ring, encoder and amplifier assembly offered for all wheel torque transducers mounts on lug-nut extensions with minimal radial run-out; a restraint rod to a magnetic bracket on the fender holds its stator. With no torque on the wheels, the zero offset is noted, then positive and negative shunts relate the output to the calibrated torque.

It is designed for full-size pickups, vans, SUVs and light and medium trucks. Michigan Scientific wheel torque transducers gather data used in braking system, vehicle stability and driveline development, to find where energy is lost.

Wheel torque transducer installed on a vehicle wheel with its adapters
Installed with its rim and hub adapters, made to reproduce the dimensions of the original rim.

Specifications

TW-2T-12.5K
Torque capacity16 948 N·m
Non-linearity≤ 0.1 % FS
Hysteresis≤ 0.05 % FS
High resolutionNo
Sensing principleStrain gage (4-arm bridge)
Repeatability≤ 0.05 % FS
Zero balance≤ 5 % FS
Rated output1.5 mV/V
Excitation voltage10 V (maximum, DC or AC rms)
Bridge resistance525 Ω (or 180 Ω)
Operating temperature−40 to 149 °C (long term; −40 to 177 °C short term)
Compensated temperature24 to 121 °C
ConnectionsConnector
ConnectorBendix PTY02E-8-4P
VehiclesPick-up trucks · Vans · SUVs · Light trucks · Medium-duty trucks
Rim size16 in (and larger, single or dual)

No 3D model for this version.

Shown: TW-2T-12.5K. Download the files

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Signal transmission

By wire: slip ring on the wheel, encoder option, mounting kit.

Options
Your request

No model fits? Unusual bolt pattern or torque range: we build it around your wheel.

Resources

Drawings

None for TW-2T-12.5K.

CAD models

None for TW-2T-12.5K.

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