No brush contact in signal transfer
Contactless transmission removes brush wear at that interface. Inspect support bearings, couplings, alignment and fasteners as specified.
Bearingless Flange Torque Meter & Telemetry
Review a bearingless flange torque meter for EV and motor benches. Match rotor geometry, RPM and telemetry clearance. Request a configuration and quote.
Request engineering review ↗MT-RTR-FLG / 50–20,000 Nm
Keep the rotating measurement free of sensor bearings.
This compact torque flange separates the rotating measuring element from the stationary telemetry antenna. The test shaft has its own external support.
EV e-drive dynos, high-speed motor and continuous-duty research benches
- Confirm rotor/stator clearance from the approved drawing, including runout and thermal growth.
- Review critical speeds, balance, pilot fits, flange fasteners and axial retention across the whole assembly.
- Keep antenna brackets and surrounding metal within the approved telemetry installation envelope.
Reference review: HBM T40B / T12HP · Magtrol TF · Manner / Himmelstein. Independent alternatives require mechanical, electrical and calibration acceptance.
START WITH THE COMBINED OPERATING ENVELOPE
Rated torque × RPM × shaft connection.
Series selection targets, subject to configuration approval. Maximum torque and maximum speed are not simultaneous ratings. Request a capacity-specific drawing and calibration specification.
| Model | Rated torque (Nm) | Max speed (RPM) | Shaft diameter (mm / inch) | Built-in output options | Integrated encoder (PPR) |
|---|---|---|---|---|---|
| MT-RTR-FLG | 50–20,000 Nm | Up to 18,000 RPM target | Rotor flange · pilot / bolt circle by drawing | ±10 V / 4–20 mA / RS485Confirm model and pinout | 360 / 1024 requestedConfirm A/B direction support |
Specify the signal that your acquisition system needs.
Configuration targets include 24 V DC supply, active ±5 V / ±10 V / 0–10 V / 4–20 mA torque, TTL speed, RS485 Modbus RTU or CAN. Confirm the actual interface, update rate and pinout on the quoted model.
Requested accuracy options are ±0.1% FS and ±0.05% FS. Ask for separate nonlinearity, hysteresis, repeatability and temperature terms, plus calibration uncertainty. A full-scale error becomes a larger percentage of a small measured torque.
Plan the alignment and coupling arrangement ↗BRUSHLESS / NON-CONTACT SIGNAL TRANSFER
Remove the brush contact.
Keep the measurement discipline.
Inductive power and telemetry carry the torque signal across the rotating interface. The shaft rotates continuously; the connector and signal cable remain stationary.
Speed is a configuration rating
Review rotor geometry, capacity, balance and the full shaft train. The bearingless family targets up to 18,000 RPM on selected configurations.
Conditioning near the sensor
Request active analog or digital outputs for the PLC or DAQ. Confirm 24 V supply, bandwidth, output scaling, cable and protocol compatibility.
| Decision | Contactless telemetry | Brush / slip-ring transfer |
|---|---|---|
| Rotating signal interface | Inductive / telemetry link, no brush contact | Physical sliding contact |
| Wear review | Shaft support and mechanical assembly remain relevant | Include brush/contact inspection for that design |
| Speed & service interval | Use the model-specific specification | Use the model-specific specification |
Modern FUTEK, HBM, Magtrol and Burster models also use non-contact designs. This is a technology explanation, not a claim that those brands use brushes.
YOUR BENCH / YOUR SHAFT DIAMETERS
Configure the measurement.
Connect the whole bench.
Send torque and speed together. Include the motor and load shaft sizes for a matched coupling pair.
Request a range-specific drawing, output definition, calibration scope and written quotation.
CAD is supplied for the reviewed configuration. Please send non-confidential requirements first.