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Torque Measuring Flanges

Torque Measuring Flanges

Product catalog summary

Overview

This technical document presents detailed specifications and characteristics of MANNER Sensortelemetrie torque measuring transducers, including miniature torque shafts and flanges designed for precise torque measurement across a wide range of nominal torque values, from 0.5 Nm up to 250,000 Nm. The systems integrate mechanical robustness with advanced wireless telemetry for reliable data acquisition in demanding industrial environments.

1. Product Characteristics and Mechanical Specifications

The torque measuring transducers feature:

Coupling via Lenze clamping elements for secure attachment.
Low moment of inertia enabling high dynamic response.
High accuracy of 0.1% for precise torque measurement.
Wireless signal transmission through Sensortelemetry technology.
Encapsulated design for environmental protection.
Operational speeds up to 30,000 rpm for miniature shafts and up to 7,500 rpm for larger flanges.
Wide operating temperature ranges from -30°C to +125°C (extended options available).

Mechanical data vary by model and torque range, with key parameters including nominal torque from 0.5 Nm to 250,000 Nm, rotor weights from 0.04 kg to 60 kg, and dimensions scaling accordingly. Stiffness parameters (radial, axial, bending, torsional) and maximum permissible loads (axial, bending, radial) are specified to ensure mechanical integrity. Balance quality levels conform to DIN ISO 1940 standards (G2.5 to G9.4), depending on model and precision requirements.

2. Torque Measuring Shaft and Flange Variants

Variants include:

Miniature torque measuring shafts without bearings for low torque ranges (0.5 Nm to 500 Nm).
Torque measuring flanges covering medium to very high torque ranges (20 Nm up to 250,000 Nm), with options for hollow shafts, keyways, and interchangeable centering rings.
Detailed mechanical drawings specify rotor antenna, pick-up, air gap (typically 1 ± 0.5 mm), and mounting features to optimize signal transmission and installation.

3. Electronic Components and Signal Transmission

Integrated rotor electronics process torque signals.
Wireless Sensortelemetry ensures reliable data transmission at high rotational speeds.
Inductive speed acquisition uses teeth per turn with options for single or dual trace TTL outputs with 90° phase shift.
Signal outputs include voltage (0 to ±10 V), current (0/4 to 20 mA), frequency (up to 100 kHz), SPI bus, USB, CAN, and TCP/IP interfaces.
Signal quality features linearity deviation below 0.2% (optionally down to 0.005%) and repeatability better than ±0.03% at 23 °C.

4. Installation and Operational Guidelines

Maintain specified air gaps (e.g., 1 ± 0.5 mm) between rotor antenna and pick-up for optimal signal quality.
Use Lenze clamping elements for secure coupling.
Observe balance quality and maximum permissible speeds to prevent mechanical failure.
Respect temperature and load limits for reliable operation.
Maximum axial displacement between flange and pickup should be less than 1.5 mm; radial distance typically 0.3 to 2 mm (optionally up to 20 mm).

5. Evaluation Units and Data Processing

Evaluation units are available as compact devices or 19" plug-in modules with display capabilities.
Digital signal processing with microprocessor control supports multiple low pass filters (0.1 Hz to 50 kHz bandwidth).
Real-time power calculation by multiplying torque and speed signals.
Communication interfaces include USB, CAN, and TCP/IP for data transfer and control.

6. Flanges and Mechanical Interfaces

Flanges feature X-toothing conforming to ISO 12667 for secure mechanical coupling.
Dimensions and bolt sizes (M10 to M14) vary by torque range.
Options include hollow shafts, interchangeable centering rings, and elongated holes for flexible mounting.

7. Key Performance Parameters

Maximum torque capacity up to 400% of nominal torque (800% optional).
Breaking torque up to 800% of nominal torque (1600% optional).
Oscillation capacity up to 300% of nominal torque peak-to-peak.
Signal bandwidth ranges from 10 Hz to 50 kHz with corresponding group delay times.

8. Environmental and EMC Compliance

EMC emission complies with EN6126 Class A.
Immunity to electromagnetic fields (30 V/m), magnetic fields (50 A/m), and electrostatic discharge (10 kV) per EN61326-1.
Degree of protection IP54 standard, with optional IP65.
Vibration resistance up to 1,000 g and impact resistance up to 2,000 g.
Operating temperature ranges from -10 to +85 °C standard, with options extending from -45 to +160 °C.

Summary

The MANNER Sensortelemetrie torque measuring transducers offer a comprehensive, high-precision solution for torque measurement across a broad spectrum of applications. Their design emphasizes low inertia, high accuracy, robust mechanical properties, and reliable wireless telemetry. Detailed mechanical and electronic specifications facilitate proper selection, installation, and integration into measurement systems. Compliance with international standards ensures quality, durability, and performance in industrial environments.

Catalog excerpts

Torque Measuring Transducer

Open the catalog to page 1

Miniature Torque Measuring Shaft without Bearings (0,5 Nm to 500 Nm) Characteristics: * Coupling with Lenze clamping elements * Very small moment of inertia * Accuracy 0,1% * Signal transmission via Sensortelemetry * Completely encapsulated * Rotational speed up to 30,000 rpm * Temperature range -30 to 125°C

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Torque measuring shaft Rotor electronic Torsional stiffness (Nm/°): Torsional angle related to Mnom (°): Axial stiffness (kN/mm) ca: Radial stiffness (kN/mm) cr: Bending moment stiffness (kNm/°) cb: Max. axial load (kN): Max. radial load (kN): Max. bending moment (kNm): Max. excursion at max. axial force (mm): Balance quality level (DIN ISO 1940): Max. speed (rpm): Highspeed option (rpm): Speed acquisition (inductive, teeth/turn): (With/without speed system)

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e. g. Clamping element Lenze ETP-Techno 015 Measuring amplifier Measuring range: 5 Nm Measuring range: 10 Nm Measuring range: 20 Nm Measuring range: 50 Nm Measuring range: 100 Nm Measuring range: 200 Nm Measuring range: 500 Nm Torque measuring shaft Evaluation unit Power Data

Open the catalog to page 5

Rotor antenna Type specific mechanical data Mnom (Nm) Weight (Rotor) (kg): Inertia (kgm2): (With/without speed system) Torque measuring flange Measuring range: 20 Nm Measuring range: 50 Nm Measuring range: 100 Nm Torsional stiffness (kNm/°): 4 5 6 Torsional angle related to Mnom (°): 0.01 0.01 0.01 Axial stiffness (kN/mm) ca: 156 156 156 Radial stiffness (kN/mm) cr: 50 200 400 Bending moment stiffness (kNm/°) cb: 0.35 0.35 0.35 Max. axial load (kN): 0.18 0.37 0.75 Max. radial load (kN): 0.18 0.37 0.75 Max. bending moment (kNm): 0.18 0.37 0.75 Max. excursion at max. axial force (mm): <0.04 <0.04...

Open the catalog to page 6

Torque measuring flange Type specific mechanical data (With/without speed system) Torsional stiffness (kNm/°): 10 20 Torsional angle related to Mnom (°): 0.01 0.01 Axial stiffness (kN/mm) ca: 90 180 Radial stiffness (kN/mm) cr: 400 800 Bending moment stiffness (kNm/°) cb: 2 4 Max. excursion at max. axial force (mm): <0.04 <0.08 Balance quality level (DIN ISO 1940): G6.3 (G2.5 option) Speed acquisition (inductive, teeth/turn): 64 64 Hollow shaft (option): yes yes

Open the catalog to page 7

Torque measuring flange Type specific mechanical data (With/without speed system) Torsional stiffness (kNm/°): 52 105 Torsional angle related to Mnom (°): 0.01 0.01 Axial stiffness (kN/mm) ca: 90 180 Radial stiffness (kN/mm) cr: 400 800 Bending moment stiffness (kNm/°) cb: 2 4 Max. excursion at max. axial force (mm): <0.04 <0.08 Balance quality level (DIN ISO 1940): G6.3 (G2.5 option) Speed acquisition (inductive, teeth/turn): 90 90 Hollow shaft (option): yes yes

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Rotor antenna Type specific mechanical data Mnom (Nm) Weight (Rotor) (kg): Inertia (kgm2): (With/without speed system) Torque measuring flange Measuring range: 1 kNm Measuring range: 2 kNm Measuring range: 3 kNm Torsional stiffness (kNm/°): 105 210 315 Torsional angle related to Mnom (°): 0.01 0.01 0.01 Axial stiffness (kN/mm) ca: 180 350 540 Radial stiffness (kN/mm) cr: 800 1,300 2,400 Bending moment stiffness (kNm/°) cb: 2 4 6 Max. axial load (kN): 7.5 15 21 Max. radial load (kN): 7.5 15 21 Max. bending moment (kNm): 7.5 15 21 Max. excursion at max. axial force (mm): <0.04 <0.08 <0.12 Balance...

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Rotor antenna Type specific mechanical data Mnom (Nm) Weight (Rotor) (kg): Inertia (kgm2): (With/without speed system) Torque measuring flange Hollow shaft Measuring range: 1 kNm Measuring range: 2 kNm Measuring range: 3 kNm Torsional stiffness (kNm/°): 105 210 315 Torsional angle related to Mnom (°): 0.01 0.01 0.01 Axial stiffness (kN/mm) ca: 180 350 540 Radial stiffness (kN/mm) cr: 800 1,300 2,400 Bending moment stiffness (kNm/°) cb: 2 4 6 Max. axial load (kN): 7.5 15 21 Max. radial load (kN): 7.5 15 21 Max. bending moment (kNm): 7.5 15 21 Max. excursion at max. axial force (mm): <0.04 <0.08...

Open the catalog to page 11

Torque measuring flange Type specific mechanical data (With/without speed system) Torsional stiffness (kNm/°): 210 315 Torsional angle related to Mnom (°): 0.01 0.01 Axial stiffness (kN/mm) ca: 350 540 Radial stiffness (kN/mm) cr: 1,300 2,400 Bending moment stiffness (kNm/°) cb: 4 6 Max. excursion at max. axial force (mm): <0.08 <0.12 Balance quality level (DIN ISO 1940): G6.3 (G2.5 option) Speed acquisition (inductive, teeth/turn): 120 120 Hollow shaft (option): yes yes

Open the catalog to page 12

Torque measuring flange Type specific mechanical data (With/without speed system) Torsional stiffness (kNm/°): 500 Torsional angle related to Mnom (°): 0.01 Axial stiffness (kN/mm) ca: 900 Radial stiffness (kN/mm) cr: 4,000 Bending moment stiffness (kNm/°) cb: 10 Max. excursion at max. axial force (mm): <0.04 Balance quality level (DIN ISO 1940): G6.3 (G2.5 Option) Speed acquisition (inductive, teeth/turn): 120 Hollow shaft (option): yes

Open the catalog to page 13

Torque measuring flange Type specific mechanical data (With/without speed system) Torsional stiffness (kNm/°): 1,050 Torsional angle related to Mnom (°): 0.01 Axial stiffness (kN/mm) ca: 1,800 Radial stiffness (kN/mm) cr: 8,000 Bending moment stiffness (kNm/°) cb: 20 Max. excursion at max. axial force (mm): <0.08 Balance quality level (DIN ISO 1940): G6.3 Speed acquisition (inductive, teeth/turn): 120 Hollow shaft (option): yes

Open the catalog to page 14

Torque Measuring Flanges

Torque Measuring Flanges

Overview

1. Product Characteristics and Mechanical Specifications

2. Torque Measuring Shaft and Flange Variants

3. Electronic Components and Signal Transmission

4. Installation and Operational Guidelines

5. Evaluation Units and Data Processing

6. Flanges and Mechanical Interfaces

7. Key Performance Parameters

8. Environmental and EMC Compliance

Summary

Catalog excerpts

All Manner Sensortelemetrie catalogs and technical brochures