LW-2T-30K wheel force transducer
Six-axis wheel force transducer for commercial vehicles, medium-duty trucks, skid steers and large forklifts, 133 kN radial and 66 kN lateral, for 15 in and larger single or dual wheels.
- 133 kN
- Fx, Fz capacity
- 66 kN
- Fy capacity
- 30 kN·m
- Moment capacity
- ≤ 0.5 % FS (Fx, Fz)
- Non-linearity
- OutputsFx Fy Fz · Mx My Mz
- Also measuredX and Z acceleration (X, Y, Z on the LW50 and LW55) · wheel speed and angle
- Signal outputanalog · CAN · Ethernet · CAN FD and EtherCAT on the CT3
- Signal transmissionslip ring or telemetry
LW-2T-30K: medium-duty wheel force transducer, 133 kN
The LW-2T-30K is the lower-capacity model of the LW-2T-30K and LW-2T-40K medium-duty wheel force transducers. Four-arm strain gage bridges give independent signals for the three forces and the camber, steer and torque moments: 133 kN (30,000 lbf) radial (Fx, Fz), 66 kN (15,000 lbf) lateral (Fy) at the tire patch, and 30 kN·m (22,000 lbf·ft) on each of Mx, My and Mz. Non-linearity is 0.5 % of full scale or less on Fx, Fz and My and 0.75 % on Mx, Mz and Fy, where the LW-2T-40K is 1.5 % on Fy. Hysteresis is below 0.5 %, and crosstalk after correction below 0.5 %. The maximum recommended static corner weight is 2,720 kg (6,000 lb). The transducer is weatherproof and temperature compensated, operates from −40 to 125 °C, measures X and Z accelerations, has a 0.17° angular resolution, and fits hub bolt patterns of 265 mm diameter and smaller.
Rim and hub adapters follow the LW-2T-30K/40K design guides; the SAE J328 static load rating of the LW-2T-30K adapters is 6,000 lbf (2,720 kg), and it should not be exceeded. The LW-2T-30K manual covers single, front and dual wheels. Twenty-four M14 bolts join the transducer to each adapter, tightened to 150 N·m. After the wheel nuts, the matched amplifier and its ten-circuit slip ring bolt onto the transducer, sealed by O-rings. A restraint rod to a magnetic bracket holds the slip ring stator, or the stator angle correction device on steered wheels. The CT3 interface box, powered at 9 to 36 V DC, runs the shunt calibration and the zero, wheel lifted and turned two revolutions.
It adapts to 15 in and larger single or dual wheels, and one transducer measures the combined loads of a dual wheel set or a single tire. It is used on commercial vehicles, medium-duty trucks, skid steers, off-road equipment and large forklift trucks, on road and off road, and to monitor and control laboratory tests.
Specifications
| Measured quantities | Fx · Fy · Fz · Mx · My · Mz |
|---|---|
| Force capacity | Fx 133 · Fy 66 · Fz 133 kN |
| Moment capacity | Mx 30 000 · My 30 000 · Mz 30 000 N·m |
| Max static load | 2 720 kg |
| Non-linearity | Fx ≤ 0.5 · Fy ≤ 0.75 · Fz ≤ 0.5 · Mx ≤ 0.75 · My ≤ 0.5 · Mz ≤ 0.75 % FS |
| Hysteresis | ≤ 0.5 % FS |
| Crosstalk | ≤ 0.5 % FS (after correction) |
| Angle resolution | 0.17° |
| Axes | 6 |
| Sensing principle | Strain gage (4-arm bridges) |
| Accelerometer range | 55 g |
| Signal transmission | Slip ring |
| Dimensions | Ø 360.68 × 88.9 mm |
| Operating temperature | −40 to 125 °C |
| Interface box | CT3 |
| Vehicles | Commercial vehicles · Medium-duty trucks · Skid steers · Forklift trucks · Off-road equipment |
| Hub bolt pattern | 265 mm (and smaller) |
| Rim size | 15 in (and larger, single or dual) |
Used with the LW-2T-30K
What you add here goes into the same quote request.
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Measure on a steered wheel
SAC stator angle corrector
Corrects the rotation angle signal in real time for the coordinate transformation, with no over-the-wheel bracket. Internal encoder accuracy ≤ 0.25°, IP67.
Slip ring versions, with the CT3 interface box.
Resources
Datasheets and manuals
Related applications
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Durability Wheel loads on the road Three forces and three moments at each wheel, recorded while the vehicle is driven. -
Dynamics Vehicle dynamics The forces and moments at each wheel while the vehicle brakes, turns and changes lane. -
Dynamics Side slip angle Side slip angle read without contact by an optical sensor, on a wheel or on the vehicle body. -
Test rig Road simulators The loads measured at the wheel on the road, and the proof that the simulator reproduces them.
If the LW-2T-30K is not the one
- Torque only Wheel torque transducers
Drive and brake torque at the wheel, while the vehicle is driven.
- Signals from the series wheel Wheel Instrumentation System
Strain gage and thermocouple signals off a rotating wheel, on the vehicle's own wheel, on track or off-road.
- Force on a part, not a wheel TR3D-B
Three perpendicular forces from a square body, down to 25.4 mm a side.
A question on this product?
Vehicle, wheel size, expected loads. An application engineer answers.
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