TW12.8ER wheel torque transducer
Enhanced-resolution wheel torque transducer for cars and light-duty trucks, 5.4 kN·m (4,000 lbf·ft) full scale, with the ring and adapters of the 8.1 kN·m TW12.8.
- 5.4 kN·m
- Torque capacity
- 14 in and larger
- Rim size
- ≤ 0.1 % FS
- Non-linearity
- Sensor4-arm strain gage bridge
- Hysteresis≤ 0.05 % FS
- Signal transmissionslip ring or telemetry
TW12.8ER: enhanced-resolution wheel torque transducer, 5.4 kN·m
The TW12.8ER is the enhanced-resolution model of the TW12.8: same ring, lower rating. It gives one channel of torque data up to 5.4 kN·m (4,000 lbf·ft), which is also its combined steer/camber moment rating, where the TW12.8 is rated 8.1 kN·m (6,000 lbf·ft). A four-arm strain gage bridge of 525 Ω is mounted in a weatherproof stainless steel ring, Ø 340.18 × 25.65 mm, for 14 in and larger wheels. The output is 1.5 mV/V nominal at up to 10 V excitation, with non-linearity of 0.1 % of full scale or less, and the temperature ranges are those of the TW12.8.
Because the geometry of the two models is identical, the TW12.8ER uses the same hub adapter, rim adapter and screws as the TW12.8, and an existing adapter set can be moved from one to the other. With the TW2 electronics, the default ±10 V analog output scales its torque channel to 6,000 N·m, that is 600 N·m/V, against 9,000 N·m for the TW12.8.
It is designed for passenger cars and light-duty trucks. Above 5.4 kN·m, the TW12.8, rated 8.1 kN·m, uses the same ring.
Specifications
| Torque capacity | 5 400 N·m |
|---|---|
| Non-linearity | ≤ 0.1 % FS |
| Hysteresis | ≤ 0.05 % FS |
| High resolution | No |
| Sensing principle | Strain gage (4-arm bridge) |
| Rated output | 1.5 mV/V |
| Excitation voltage | 10 V (maximum, DC or AC rms) |
| Bridge resistance | 525 Ω |
| Shaft diameter | 198.02 mm (center bore) |
| Mounting fasteners | 18 × Ø 9.91 mm |
| Rim fasteners | 12 × Ø 9.91 mm |
| Bolt circle | 213.26 mm |
| Rim bolt circle | 324.97 mm |
| Dimensions | Ø 340.18 × 25.65 mm |
| Operating temperature | −40 to 149 °C (long term; −40 to 177 °C short term) |
| Compensated temperature | 24 to 121 °C |
| Connections | Connector |
| Connector | Bendix PTY02E-8-4P |
| Vehicles | Passenger cars · Light trucks |
| Rim size | 14 in (and larger) |
Resources
Datasheets and manuals
Drawings
CAD models
None for TW12.8ER.
Guides and notes
If the TW12.8ER is not the one
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Battery-powered clamp-on telemetry transmitter for one full strain gage bridge, in an IP67 housing that straps to shafts of 25 mm or more, with a 2.4 GHz digital link.
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A question on this product?
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