Torque Transducers

T30FNA

Mounting instructions

Electricalmeasurement of mechanicalquantities

3T30 FNA

Contents Page

Safety instructions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 General description, field of application 4. . . . . . . . . . . . . . . . . . . . . . .

2 Construction and Function 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Construction 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Torque measurement system 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.2 Speed measurement system 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 General hints 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Mounting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 Mounting with curved tooth couplings 10. . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Mounting position 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 Fixing of the housing 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 Precautions 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Electrical connections 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 Connection plugs and cables 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Instruments that can be connected 15. . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Measurements 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1 Hints for measurements 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Calibration signal 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 Measurement of speed with pulse counter 16. . . . . . . . . . . . . . . . . . . . . . 5.4 Measurement of static and dynamic torque 17. . . . . . . . . . . . . . . . . . . . . 5.5 Limits of applicability of T30 FN torque transducers 18. . . . . . . . . . . . . .

6 Maintenance 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Technical Data 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Dimensions 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

242.00 – 01 – 11.9 – 5.4e

4 T30FNA

Safety instructions

According to the prevailing regulations to prevent accidents a cover has to befitted after the mounting of the torque transducers T30FNA as follows:

• the cover must be stationary

• the cover shall avoid any danger of squeezing and provide protectionagainst parts that might come loose

• the cover shall be installed at a minimum distance from moving parts orshall be of a nature that a hand cannot be put through

• the cover shall be fitted even if moving parts are installed outside the usualaccess area of persons.

Above regulations could only be disregarded if there is already sufficientprotection of machine parts owing to the design of the machine or due to otherprecautions.

1 General description, field of application

Mechanical power transmission through rotating machine parts often requiresextensive investigations of machine parts that transmit or generate power.Furthermore, continuous monitoring is often required. This, in turn, makes itnecessary to have transducers to sense the physical quantities torque andspeed of rotation.

The torque transducers type T30FNA from HBM which are without sliprings,provide torque sensing as well as speed measurement. The torque trans-ducers are suitable to determine static as well as dynamic torque in stationaryand rotating shafts. Speed of rotation can be determined as well as the senseof rotation. The multiplication of both factors gives the shaft power.

Torque transducers are available for nominal torque ratings from 50 Nm up to10 kNm. The maximum speed rating is 3000 min–1.

A frequency modulation system with non-contacting, inductive transfer of thesignal and the excitation voltage provides a system for the sensing of staticand dynamic torque which is free from wear and maintenance. For everynominal torque HBM offer models for lower speed rating as well as for higherspeed rating.

5T30FNA

The output signals at the two plugs for torque (MD) and speed (n) are pulsetrains the frequency of which changes linearly with torque or speed resp. Therespective direction of torque and speed is given unambiguously.

There are various HBM amplifiers for torque and rotational speed which canprocess the signals from the T30FNA Torque Transducer. Multipliers can beemployed on the relevant hoards to measure the power.

The field of use of the T30FNA is to measure the required power or the effi-ciency, or applications in process control as well as continuous monitoring ofmachines.

6 T30FNA

2 Construction and Function

2.1 Construction

The schematic design of a torque transducer is given in Fig. 2.1. The torquetransducer consists of a measurement body which is screwed to the measure-ment object by means of two flanges. The hollow shaft which forms the mea-surement body is equipped with strain gauges. Inside the hollow shaft there isthe electronic circuitry for the bridge excitation voltage and for the transmis-sion of the measurement signals. Furthermore, the shaft housing is equippedwith 30 teeth for speed measurement and with transmission elements for theinductive transmission of the supply voltage onto the measurement body aswell as elements for capacitive transmission of measured values from theshaft to the housing of the torque transducer. The rotor, consisting of theactual measurement body and the two flanges, is fitted to the housing by twospindle bearings. The housing also contains preamplifiers for the torque signaland for the speed signal, as well as two inductive proximity detectors whichserve to detect the speed and the sense of rotation. The housing also carriesthe connection plugs for the measurement cables.

A = mounting flange; B = flange for introduction of torque; 1 = torsional body; 2 = strain gauge application; 3 = spindle bearings; 4 = housing; 5 = elastic seal; 6 = capacitive transmission; 7 = inductive transmission; 8 = gear wheel for speed measurement; 9 = inductive proximity detector; 10 = connection box ”speed”; 11 = connection box ”torque”

Fig. 2.1: Mechanical construction

7T30FNA

2.1.1 Torque measurement system

In the torque transducers T30FNA there are strain gauges for torque mea-surement mounted on the rotor in the direction of the main stress. They areconnected as a Wheatstone bridge so that only torque will unbalance thebridge. Temperature effects are also compensated by means of further bal-ancing elements. Additional axial and lateral forces as well as bendingmoments within the permitted limits will have only a slight influence (see sec-tion ”7. Technical Data”).

A 15kHz voltage of 54V peak-to-peak for bridge excitation is transmitted byinductive means. The frequency-to-voltage converter in the rotor forms out ofthis a stable bridge excitation voltage. The torque acting on the sensing ele-ment deforms it and also the strain gauges. The strain gauges change theirresistance proportional to the strain thus detuning the Wheatstone bridge. Theoutput voltage of the bridge which is proportional to the torque is then fed to avoltage-to-frequency converter. This, in turn, produces pulses through integra-tion, the frequency of which is proportional to the bridge output voltage. Thepulses are inductively transmitted to the stator. They are then transformed in apreamplifier into a pulse frequency of 12V peak-to-peak in the frequencyrange from 5kHz to 15kHz. In the no-load state the output signal is 10kHz.Depending on the sense of the torque the output signal at the ”MD” plug willbe either 15kHz or 5kHz at rated torque.

If the torque acts in direction of arrow (marked on T30FNA) the torque trans-ducer outputs a signal of 15kHz at the respective nominal torque MN. If it actsin the opposite direction 5kHz will be output (refer to ”Technical Data” and Fig.3.1). This is true if the torque transducer flange A is driven and flange Bloaded (see Fig.3.2).

2.1.2 Speed measurement system

The rotor carries a toothed wheel with 30 teeth for the determination of speed.On the stator there are, two inductive pick-ups. During one revolution of therotor 30 voltage pulses are produced the frequency of which is proportional tospeed. The pick-ups are displaced in such a way that two pulse trains appearwith a phase shift of 90°. The phase shift serves as the information on thesense of rotation of the shaft.

8 T30FNA

A pre-amplifier serves to transform the two pulse trains into square waves of25V peak-to-peak. The speed proportional square wave is available at the ”n”plug for further processing.

A third signal output delivers 60 pulses per revolution. If a frequency meter isconnected here the speed can be read out directly in revolutions per minute.

Plug MD

Plug n

HousingRotor

15kHz

1

2

3

4

5

6

7

7

5

12

4

Fig. 2.2 Block diagram

3 Installation

3.1 General hints

• Mounting of the torque transducer T30FNA may be in any position.

• The torque transducers are screwed to the free shaft ends or to the cou-plings via flanges at both ends. Dimensions of connections see section”Dimensions”.

• Align shaft ends precisely. Even minute alignment errors might lead tomechanical overloading. In order to avoid such errors HBM recommend touse couplings at both sides. Thus adverse loadings as bending moments,lateral and axial forces will be excluded and cannot act on the torque trans-ducer.

9T30FNA

3.2 Mounting

The torque transducers T30FNA may be mounted in a train of shafts withoutcouplings. However, it is imperative that error loads due to deviations fromplane running, smooth running and concentricity shall have no effect on thetorque transducer. Since this is very difficult to realise HBM recommend tomount T30FNA torque transducers with intermediate couplings e.g. tooth cou-plings.

For the selection of suitable couplings the following criteria should be applied:

• Stability class and fastening torque for nuts and bolts to be used in the twoconnecting flanges:

Nominaltorque

T30FNA

Cheese-head screw 1) asmachined, lubricated

µ = 0.125

Hexagon nut asmachined, lubricated

µ = 0.125

Screws and nutsper flange evenly

distributed

Tighten-ing

torque

50Nm M 6 x 25 DIN 912-12.9 M 6 DIN 934-12 4 (8)2) 16Nm

100Nm M 6 x 25 DIN 912-12.9 M 6 DIN 934-12 4 (8)2) 16Nm

200Nm M 6 x 25 DIN 912-12.9 M 6 DIN 934-12 8 16Nm

500Nm M10 x 35 DIN 912-10.9 M10 DIN 6924-10 5 67Nm

1kNm M10 x 35 DIN 912-10.9 M10 DIN 6924-10 10 67Nm

2kNm M10 x 35 DIN 912-10.9 M10 DIN 6924-10 15 67Nm

5kNm M16 x 50 DIN 912-10.9 M16 DIN 6924-10 12 290Nm

10kNm M16 x 50 DIN 912-10.9 M16 DIN 6924-10 18 290Nm

1) The screw length depends upon the coupling used. DIN = German bureau of standards2) If Tacke SBG-Curved Tooth Couplings are used

The information given above applies under the following conditions: Surfacecondition of the flanges in the area of the friction fit surfaces and of the con-tact surface of screwhead or nuts RA ≤ 3.2µm. Flange material: steel, tensilestrength ≤900N/mm2.

10 T30FNA

Distribution of screws

T30FNA 50Nm ... 200Nm

T30FNA 500Nm ... 2Nm

T30FNA 5kNm ... 10Nm

• Couplings should be dimensioned in accordance with the torque and speedthat are expected. When estimating the possible loads one should take careof acceleration and deceleration moments as well as the passing throughcritical speeds of rotation.

• Periodic peaks of torque could be considerably higher than the average cal-culated from rated power and speed. If the coupling is overdimensioned aswell as the torque meter this will bring safety against mechanical overload-ing.

• Couplings should be selected so that any additional force or moment iswithin the ratings, or cannot act on the torque transducer.

• Couplings must be self centering. Angular displacements, parallel and axialshifts shall be cancelled.

• Mounting surfaces for the connection of the coupling housing shall be cleanand free from grease.

3.2.1 Mounting with curved tooth couplings

Selfcentering curved tooth couplings made by Messrs. Tacke are proved incombination with HBM torque transducers. They are torsionally stiff and takecare of the introduction even of dynamic torque to the torque transducer in thecorrect way. They exclude jamming that might lead to high, uncontrolledforces, and cancel any angular displacement as well as parallel or axial shift.

HBM can supply suitable couplings that are well matched to the type of torquetransducer and the intended use. Special requirements of the customer aretaken care of and the shaft connections are made to the specified dimensions.

11T30FNA

The torque transducer and the coupling housing are assembled at HBM andare dynamically balanced (balancing quality level G 6.3). Therefore, themounted assembly should not be disassembled again. If this cannot beavoided one should mark all parts in such a way that they can be assembledafterwards in exactly the same way.

Coupling hubs are balanced individually and the keyways are made after bal-ancing.

Further information will be found in the various data sheets provided by HBM.

12 T30FNA

3.3 Mounting position

The T30FNA can be mounted in any position. If mounted with couplings therelevant restrictions of the couplings shall be observed regarding slanted orvertical operation. For the determination of torque the following holds:

The position of flange A (see Fig.3.2) should be towards the machine part thedriving torque and loading of which is of particular interest. This means thatthe torque is introduced via flange A while flange B is the reference. Frictionfrom bearing which is very low already cannot influence the measurementresult, therefore.

When the applied torque acts righthanded, the output signal frequency will liewithin the range 10 kHz...15 kHz. Interfaced HBM signal amplifiers will outputpositive output voltages (0...+10V).

5

10

15

0 MNMN

Torque in direction of arrow(output signal 0...+10V)

Torque in the opposite direction (output signal 0...–10V)

Out

put s

igna

l in

kHz

Fig.3.1: Direction of torque

Introduction of torque flange A;flange B is the reference.

Flange AFlange B

Fig.3.2: Introduction of torque

13T30FNA

For the determination of the sense of rotation the following holds:

There is an arrow on the stator. When torque transducers rotate in the direc-tion indicated by the arrow , interfaced HBM signal amplifiers will outputpositive voltages (0...+10V).

3.4 Fixing of the housing

The housing should be secured against rotation. For this purpose the barincluded in the delivery is screwed into the threaded hole M6 provided on themounting block. An elastic stop (bidirectional, if required) shall be provided toallow sufficient axial and radial play. Tension stresses between housing androtor will let the spindle bearings run hot and will diminish their useful life.

The mounting block at the housing may be used as bearing in exceptionalcases only. If this should ever be necessary one should make sure that allradial and axial forces between housing and rotor which are introduced via themounting block into the spindle bearings are within the limits specified in thetechnical data. Those limit values are to be reduced accordingly if both forcecomponents are present at the same time.

3.5 Precautions

The torque transducers T30FNA are protected to IP 53 according to EN 60529. Torque transducers shall be protected against coarse dirt particles,dust, oil, solvents and humidity.

During operations the relevant safety rules published by the relevant orga-nisations shall be observed, see also ”Safety instructions”.

14 T30FNA

4 Electrical connections

4.1 Connection plugs and cables

The two 7-pole instrument plugs Binder 423 (MS 3102 A 1 6S–1 P for T30FN)mounted at the housing are marked ”MD” for the torque signal and ”n” for thespeed signal.

Hint: The operating voltage for the speed measuring system is provided viathe ”MD” plug.

1 Operating voltage zero <WH>

Plug MD 2 Pre-amplifier supply voltage (–15V) <BK>

3 Pre-amplifier supply voltage (+15V) <BU>6 1

5 7 24 Torque output signal (12Vpp; 5...15kHz) <RD>

5 7 2

4 3 5 Not connected

6 Rotor supply voltage (54V/74Vpp; 15kHz) <GN>

7 Rotor supply voltage (0V) <GY>

1 Operating voltage zero <WH>

Plug n 2 Rotation rate signal (30Vpp; 60 pulses/revolution) <BK>Plug n3 Not connected

6 14 Rotation rate signal (30Vpp; 30 pulses/revolution) <RD>

6 1

5 7 2 5 Not connected4 3 6 Not connected

7 Rotation rate signal (30Vpp; 30 puls./rev.);phase shifted by 90° <GY>

The lead screen is laid flat on the connector case. This means that the com-plete measurement system is enclosed in a Faraday cage, reducing any elec-tromagnetic interference.

With interference caused by potential differences (equalisation currents) thesystem zero-voltage and the housing ground should be isolated from oneanother and a potential equalisation conductor located between the housingsof the transducer and the amplifier (flexible stranded wire, 10 mm2 conductorcross-section).

15T30FNA

Note: The type T30FNA/T30FN Torque Transducers differ only in the type ofconnector:

T30FNA: Binder 423 Connector

T30FN: MS 3102A16S–1P Connector

T30FNAConnecting cable Length (m) For output Lead connection

Kab 139A–6 6 MD/n Binder 423 – free ends(Greenline)

Cable extension

Kab 0304A–10 10 – 7-pole socket – 7-pole plug(Greenline)

Kab 7,5/00–0,14–C–PVC min. 10 – cut to length

T30FNConnecting cable Length (m) For output Lead connection

Kab 0116A–6 6 MD/n 7-pole socket – 7-pole plug(Greenline)

Kab 0117A–6 6 MD/n 7-pole socket – free ends(Greenline)

4.2 Instruments that can be connected

The basic requirements for the trouble-free operation of torque transducersare:

• Adequate power supply for the non-contact telemetry.

• Supply for the preamplifier built into the transducer.

HBM has various amplifiers available for numerous applications and thesecan supply the transducers and process the torque and torque-proportionalsignals. The connection details can be found in the operating manual for therelevant electronic measurement system.

16 T30FNA

5 Measurements

5.1 Hints for measurements

• Mount the T30FNA free from stresses and precisely adjusted between theaxes of the objects to be measured. If necessary use couplings (see section”Installation”).

• Zero balance and calibrate torque and speed signals in accordance with theoperating instructions of the connected signal conditioning instruments.

5.2 Calibration signal

The torque transducers T30FNA deliver an additive electrical calibrationsignal that can be called from the amplifier.

When pressing a push button on the front panel of the amplifier the supplyvoltage is increased from 54V to 74V. The torque transducer responds withthe output of a calibration signal of approximately 12.5kHz 50% of therated torque. The precise value is given on the nameplate of the T30FNA.The amplifier has to be adjusted to the precise calibration signal of the con-nected unloaded torque transducer in order to achieve calibration of the mea-surement chain.

5.3 Measurement of speed with pulse counter

The torque transducer generates 60 square-wave pulses per revolution (12 V peak-to-peak; 30µs) on contacts A and B of plug ”n”. If a counter with 1sas time basis or a frequency meter is connected, the speed can be read out inrevolutions per minute (min–1).

17T30FNA

5.4 Measurement of static and dynamic torque

Torque transducers T30FNA are suitable for the measurement of static anddynamic torques.

When dynamic torque is measured one should note the following:

• The amplitudes (peak-to-peak) must never exceed 70 % of the torque ratedfor the specific type, even with oscillating torque. In all cases the amplitudesmust lie within the load range limits of – MN and + MN.

• The static calibration of the T30FNA is also valid for dynamic torque mea-surements.

Note: The operating frequencies of the mechanical measurement arrange-ment must not cause resonance with the natural frequency of the system.

+MN 100

–MN 100

50

50

0

45

25

Nominal torque MN in %

70% MN

Range

Lower torque limit

Upper torque limit

Fig. 5.1: Amplitudes of dynamic torque

• The natural frequency fo of the mechanical measuring installation dependson the moments of inertia I1 and I2 of the coupled rotating masses anddepends on the torsional stiffness cT of the T30FNA.

• The natural frequency of the arrangement can be calculated with the follow-ing equation:

f0 1

2· cT · 1

J1

1J2

f0 = natural frequency of the measurement arrangement (Hz)

J1, J2 = mass moment of inertia of the connected rotating masses (kgm2)

cT = torsional stiffness of the torque transducer (Nm/rad)

18 T30FNA

5.5 Limits of applicability of T30FNA torque transducers

The nominal speed of the T30FNA torque transducer is specified on the typeplate. It is to be understood as the permitted continuous speed of the mountedtorque transducer and is the load limit.

The experience showed that smooth running of the torque transducersdepends to a large extent upon the whole test stand setup. Therefore, vibra-tions can occur the amplitude and frequency of which are influenced by themass of the vibrating housing and foundation, the stiffness of the bearing orfoundation and the resonance vicinity. Since HBM cannot influence this effect,diagram 1 demonstrates the maximum permitted amplitude smax and the rmsvalue of vibration velocity veff versus the speed.

For T30FNA with or without couplings the following does apply:

• T30FNA without couplings

– The speed limit is the nominal speed specified on the type plate.

– The supplied torque transducer T30FNA has been tested on a test standand meets the requirements of diagram 1.

• T30FNA with couplings

– The speed limit is the lower nominal speed.

– The vibrational behaviour of the combination T30FNA-coupling supplied byHBM has been tested on a test stand and meets the requirements of dia-gram 1.

19T30FNA

The diagram shows the limit curves of the max. vibration amplitude s and therms value of the vibration velocity v as a function of the speed.

The limit values must not be exceeded in operation; they only refer to the T30FNAand not to the connected machinery. veff in the housing area is defined in accordancewith VDI 20561) or smax in the flange area is defined in accordance with DIN 45 6702)

or VDI 2059

Speed in min–1

1) Association of German Engineers2) German Bureau of Standards

max

. vib

ratio

n am

plitu

de in

vibr

atio

n ve

loci

ty (

rms

valu

e) (

mm

/s)

Measuring planes

µm

Smax 4500

n

veff n

350

100

150

200

3000

2000

1000

Diagram 1: Vibration amplitude and vibration velocity versus the speed

HBM offer SBG-type curved tooth couplings from Messrs. Tacke as accesso-ries.

6 Maintenance

The T30FNA Torque transducers require almost no maintenance. Only thepermanent grease lubrication needs replacing after every 16000 hours ofoperation. We recommend that the torque transducers are returned to HBMfor proper renewal of the lubrication.

20 T30FNA

7 Technical Data

Torque measurement system

Type T30FNA

Nominal torque M N NmkNm

50 100,200

5001, 2, 5, 10

Nominal sensitivity (nominal signal span betweentorque = zero and nominal torque) kHz 5Sensitivity tolerance (deviation of the actual fre-quency range from the nominal signal range at MN) % <±0.1

Output frequency at torque=zero 1) kHz 10Nominal output frequency with positive MN kHz 15 (12V peak-to-peak)

with negative MN kHz 5 (12V peak-to-peak)Load resistance kΩ ≥2

Temperature deviation per 10K at nominal tempera-ture range of

output signal (related to the actual value of signalspan)

% <±0.1

zero signal (related to the nominal sensitivity) % <±0.1 <±0.05

Excitation voltageSquare wave voltage (peak-to-peak)

Current consumptionV

mA54±5% 800±5%

Release of calibration signalCurrent consumption

VmA

80±5% 1000±5%

Frequency kHz approx.15Excitation voltage for the preamplifier V –15/0/+15Preamplifier, max. current consumptionCalibration signal, value given on name plateTolerance of calibration signal, related to MN

mA–%

–20/0/+20approx. 50% of MN

<±0.05

Linearity deviation including hysteresis,related to nominal sensitivity % <±0.3 <±0.2 <±0.1

Rel. standard deviation of the reproducibilityaccord. to DIN 1319, rel. to variation of the outputsignal % <±0.03

Speed measuring system

Nominal speedOutput signal for speedPulse voltage (peak-to-peak)

between plug contacts D and Abetween plug contacts G and A

min–1

V

3000pulse train

3030 pulses per revolution30 pulses per revolution,

displaced by π/2 withrespect to one another

Pulse voltage (peak to peak)between plug contacts B and A

V 1260 pulses per revolution

Load resistance kΩ ≥5Minimum speed, to achieve sufficient pulse quality min–1 30 (typ. 15)

1) The torque transducer shall be mounted at flange B, the torque applied via flange A (see Fig.3.2).

21T30FNA

General information on the torque transducersNominal temperature range 2) °C [°F] +10...+60 [+50...+140]Service temperature range 2) °C [°F] –10...+60 [–15...+140]Storage temperature range °C [°F] –50...+70 [-60...+160]

Additional reliability dataMechanical shock 3), degree of precision toIEC 68-2-27-1987

Number n 1000Duration ms 3Acceleration m/s2 500

Vibration stress test 3), degree of precision toIEC 68-2-6-1982

Frequency range Hz 5...65Duration h 1.5Acceleration m/s2 50

2) In continuous operation bearings become warm because of friction. In the ambient temperature this has tobe considered and is provided as follows: For torque transducers with a speedrate of 3000 min–1 is valid:60 – speedrate in min–1 . 0.005 = max. ambient temperature in °C

3) The technical data did not change after impact and vibrational stressing test.

22 T30FNA

Mechanical valuesNominal torque M N Nm 50 100 200 500 1k 2k 5k 10k

Torsional stiffness CT kNm/rad

9.41 17.5 31.5 133 250 437 1100 2400

Torsion angle at MN grad 0.3 0.33 0.36 0.22 0.23 0.26 0.26 0.24Mass moment of inertia gm2 1.4 10.4 30.6 110.2Balance quality-level to DIN ISO 1940 G 6.3

Max. limits for relative shaftvibration 4) (peak-to-peak) µm

smax 4500

n

Rms value for the vibrationvelocity of the housing mm/s veff

n

3Mechanical limit values 5)

Limit torque, related to MN % 150Breaking torque, related to MN % >300Lateral limit force on the rotor N 300 300 300 1000 1000 1000 1000 2000Axial limit force on the rotor kN 9 9 9 32 32 32 25 55Bending limit moment on therotor

Nm 48 48 48 171 171 171 186 419

Vibration amplitude to DIN 50100 (peak-to-peak)

Nm 35 70 140 350 700 1.4k 3.5k 7k

Protection class , according toEN 60529 IP 53Weight kg 5.2 9 15 33

Useful life of spindle bearings 6)

without maintenance h 16000if lubrication grease is renewedafter each 8000 hrs of operation h 25000 to 30000

4) smax in the flange area of T30FNA is defined in accordance with DIN 45 670 or VDI 20595) Each type of irregular stress can only be permitted with its given limit value (bending moment, side load or

axial load, exceeding the nominal speed) if none of the others can occur. Otherwise the limit values must bereduced. If for instance 30% of the bending moment and also 30% of the side load are present, only 40% ofthe axial load are permitted, provided that the nominal torque is not exceeded. With maximum additionalloading, measuring errors of the order of 1% of the nominal torque can occur.

6) It is understood that permitted force between housing and shaft, as well as nominal speed and service tem-peratures are not exceeded.

23T30FNA

8 Dimensions

Type plate

Flange B Flange A

Permissible deviationof pitch ± 5’

Dimensions without tolerances to DIN 7168-m

Position of the locking-screw thread (side view)

50Nm, 100Nm, 200Nm 500Nm, 100Nm, 200Nm 5kNm 10kNm

Plug fortorquemeasuringsignal

Plug for speedmeasuringsignal andindication ofdirection

∅ 9, length 300mm

Nominaltorq e

Dimensions in mmtorque A B–0.005 C D E± 0.1 F G H J K L M

50 to 200Nm 90 60 66.5 60 72 90 5 13 15 25 72.5 M5

500Nm to 2kNm 157 100 69 60 130 110 7 17 22 38 99 M8

5kNm 189 110 71.5 60 154 126 9 23 22 38 103 M8

10kNm 235 140 93.5 60 196 156 12 30 34 50 125 M8

Nominaltorq e

Dimensions in mmtorque N O–0.5 P Q R S TH12 U V W X Y

50 to 200Nm 8 161.5 50 134 93.4 116 6.4 40 30 45° 8x45° 75

500Nm to 2kNm 12 171.5 68 156 113.4 134 10.5 70 54 24° 15x24° 75

5kNm 12 186 76 172 129.4 142 17 70 54 30° 12x30° 75

10kNm 14 209.5 91 202 159.4 157 17 106 90 20° 18x20° 75

HOTTINGER BALDWIN MESSTECHNIK GMBHPostfach 10 01 51 • 64 201 DarmstadtIm Tiefen See 45, 64 293 DarmstadtTel.: (0 61 51) 8 03–0 • Telefax: (0 61 51) 89 48 96

Modifications reserved. All details describe our products in general form.They are not to be understood as express warranty and do not constituteany liability whatsoever. m

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