Wheel Torque Transducers
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Measures drive and braking torque
Useful for brake system, vehicle stability, and drive-line development
High Resolution models measure brake drag, bearing drag, and rolling resistance
Models to accommodate all vehicle sizes and wheel configurations
Adapter system places tire on production center line
Weatherproof
8500 Ance Road
Charlevoix, MI 49720
Tel: 231-547-5511
Fax: 231-547-7070
5-15-2017
MICHIGAN SCIENTIFIC
http://www.michsci.com
corporation
321 East Huron St.
Milford, MI 48381
Tel: 248-685-3939
Fax: 248-685-5406
System Overview
OR
G
A
Rim Adapter - modified vehicle wheel to which the
Wheel Torque Transducer is mounted.*
B
Hub Adapter - fabricated adapter that mounts to the
Wheel Torque Transducer and bolts to the production
vehicle wheel hub.*
C
Collet Lug - Quick connect collet lug nut extension,
mounts to standard lug nuts.
F
D
Wheel Torque Transducer - Measures drive and
braking torque at vehicle corner.*
G
E
Wheel Instrumentation Package (WIP) - combination
of a precision strain gage and two precision
thermocouple amplifiers built into a low profile, rugged
housing. When used with a Michigan Scientific slip ring
the package is weatherproof. The amplifier is located
close to the sensor, reducing errors due to long lead
wires, connector resistance variations, and electromagnetic interference. The WIP mounts to a variety of
wheel lug bolt patterns.
Slip Ring Assembly - Completes electrical connection
between rotating and stationary components. Also
measures rotational velocity and angular position.
Optional Telemetry Data Transmission Electronics Battery operated telemetry transmits signals wirelessly
to receivers located inside vehicle. Rotational velocity
and angular position are not available. Telemetry is the
lowest profile data transmission arrangement.
* When assembled, components A, B & D can be balanced as a normal production assembly.
Vehicle tire is orientated on production center line through design of bolted assembly
Sizing & Selection Charts
Product Comparison Matrix
Model
TW9.5
TW10.8
Rim size
≥ 10”
≥ 13”
TW12.8
TW12.8
HRMS175
TW12.8ER
TW12.8
HRMS800
≥ 14”
TWHR2000
TW15.0
TW-2T-12.5K
TW-2T-50K
TW-2T-60K-S
≥ 22.5
≥ 15”
≥ 16”
≥ 19.5”
≥ 19.5”
High Resolution Wheel Torque
Full Scale
Measurable
Load
4,000 lb-ft
(5.4 kN-m)
3,000 lb-ft
(4.0 kN-m)
6,000 lb-ft
(8.1 kN-m)
4,000 lb-ft
(5.4 kN-m)
175 lb-ft
(237 N-m)
800 lb-ft
(1.0 kN-m)
2,000 lb-ft
(2.7 kN-m)
7,000 lb-ft
(9.5 kN-m)
12,500 lb-ft
(17 kN-m)
50,000 lb-ft
(67.8 kN-m)
60,000 lb-ft
(81 kN-m)
Maximum Load
Capacity
4,000 lb-ft
(5.4 kN-m)
3,000 lb-ft
(4.0 kN-m)
6,000 lb-ft
(8.1 kN-m)
4,000 lb-ft
(5.4 kN-m)
6,000 lb-ft
(8.1 kN-m)
6,000 lb-ft
(8.1 kN-m)
20,000 lb-ft
(27 kN-m)
7,000 lb-ft
(9.5 kN-m)
12,500 lb-ft
(17 kN-m)
50,000 lb-ft
(67.8 kN-m)
60,000 lb-ft
(81 kN-m)
Application
ATV & Small
Vehicle
Light
Passenger
Vehicle
Class 8 truck,
Agricultural &
Construction
Equipment
Light to
Medium
Duty Truck
Medium Duty
Truck & SUV
Class 8 truck, Agricultural &
Construction Equipment
Configuration
Light Duty
single wheel
Heavy Duty
single or dual
wheel
Medium
Duty
single wheel
Medium Duty
single or dual
wheel
Heavy Duty
single or dual
wheel
Passenger Vehicle to Light Truck
Medium Duty
single wheel
Michigan Scientific Wheel Torque Transducers are highly sensitive torque transducers used to measure drive and braking
torque on vehicles ranging from ATV to large Agricultural & Construction Equipment . The transducers are attached to
adapters that duplicate the critical dimensions of the original rim and hub of the vehicle. They can be used under normal
driving conditions, due to the high strength material and weatherproof sealing.
The Wheel Torque Transducer with telemetry is the lowest profile
data transmission arrangement.
TW-2T-50K in single wheel configuration
Scan for more detailed
Specifications
or go to www.Michsci.com
Example Data
Severe (ABS) Brake Stops
3000
450
2000
400
350
300
0
250
-1000
200
-2000
150
-3000
100
-4000
-5000
Speed (kph)
Torque (Nm)
1000
50
400
410
420
430
440
Time (sec)
Torque (Nm)
8500 Ance Road
Charlevoix, MI 49720
Tel: 231-547-5511
Fax: 231-547-7070
450
460
470
480
500
0
Speed (kph)
MICHIGAN SCIENTIFIC
http://www.michsci.com
490
corporation
321 East Huron St.
Milford, MI 48381
Tel: 248-685-3939
Fax: 248-685-5406