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LW-2T-60K-S wheel force transducer

LW-2T-60K-S wheel force transducer LW series

Six-axis wheel force transducer for class 8 trucks and large off-road vehicles, 300 kN radial and 150 kN lateral, in stainless steel, for 20 in and larger wheels.

300 kN
Fx, Fz capacity
150 kN
Fy capacity
81 kN·m
Moment capacity
≤ 1 % FS
Non-linearity
  • OutputsFx Fy Fz · Mx My Mz
  • Also measuredX and Z acceleration (X, Y, Z on the LW50) · wheel speed and angle
  • Signal outputanalog · CAN · Ethernet · CAN FD and EtherCAT on the CT3

Heavy-duty wheel force transducer, 300 kN

The LW-2T-60K-S measures all the wheel forces and moments on class 8 trucks and large off-road vehicles. Four-arm strain gage bridges give independent signals for the vertical, lateral and longitudinal forces, up to 300 kN radial (Fx, Fz) and 150 kN lateral (Fy) at the tire patch, and for the camber, steer and torque moments, 81 kN·m each. Non-linearity and crosstalk after correction stay within 1 % of full scale, hysteresis below 0.5 %. The weatherproof stainless steel ring, Ø 469.9 × 119.1 mm, fits 285 mm and 335 mm hub bolt patterns and operates from −40 to 125 °C, with X and Z accelerations and 0.17° angular resolution.

Twenty-four Ø 17.5 mm through holes and M20 × 2.5 threads lie on a Ø 435.6 mm bolt circle. On dual wheels, both rim adapters bolt onto the transducer with the same M20 bolts, then the hub adapter with twenty-four more, tightened with a torque multiplier; stand-offs carry the amplifier bar. A magnetic restraint holds the slip ring stator vertical, or the stator angle correction device on steered wheels. The interface box, a CT2 in the manual and a CT3 in the 2024 datasheet, is powered at 9 to 36 V DC and runs the shunt calibration and the zero.

It is used for on-road and off-road measurements, one transducer measuring the combined loads of a dual wheel set or a single tire, and also to monitor and control laboratory tests.

Wheel force transducer with amplifier and slip ring assembly
Transducer, amplifier and slip ring. The slip ring and the telemetry package are swappable.

Specifications

LW-2T-60K-S
Measured quantitiesFx · Fy · Fz · Mx · My · Mz
Force capacityFx 300 · Fy 150 · Fz 300 kN
Moment capacityMx 81 000 · My 81 000 · Mz 81 000 N·m
Non-linearity≤ 1 % FS
Hysteresis≤ 0.5 % FS
Crosstalk≤ 1 % FS (after correction)
Angle resolution0.17°
Axes6
Sensing principleStrain gage (4-arm bridges)
Accelerometer range55 g
Signal transmissionSlip ring
Shaft diameter401.3 mm (center bore)
Mounting fasteners24 × Ø 17.5 mm (through holes, and M20 × 2.5 threads)
Bolt circle435.6 mm
DimensionsØ 469.9 × 119.1 mm
MaterialStainless steel
Operating temperature−40 to 125 °C
Interface boxCT3
VehiclesClass 8 trucks · Off-road vehicles
Hub bolt pattern285 · 335 mm
Rim size20 in (and larger, single or dual)
Shown: LW-2T-60K-S. Download the files

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Signal transmission

By wire: amplifier, slip ring and encoder on the wheel. Not on the LW-MC-3.5K and LW12.8-50-TEL.

Options
Accessories
Your request

Unusual bolt pattern, motorsport hub, agricultural wheel: we build it around your wheel.

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