TECHNICAL DATASHEET
Measuring wheels
GENERAL

Measuring wheels serve to convert linear motion into rotary motion,
E.g. to measure lengths of profiles, cables, threads or strip materials using
counters or encoders.
For this purpose, the measuring wheel is either placed on the shaft of amechanical or electromechanical counter or in the same way on the shaft ofan encoder.
Now either the material to be measured runs over the measuring wheel andis pressed against it by its own weight or the tensile stress, or the measuring
wheel together with the counter or rotary encoder is pressed by the own
weight of the measuring system onto the surface to be measured. If thispressing force is not sufficient, a suitable device such as a spring arm or amounting bracket with spring preload must be used.
To avoid falsification of the measuring result when driving via measuring
wheels, care must be taken to keep the slip as low as possible. Whenselecting the profile (surface), the nature of the measured material, its
extensibility, thickness and driving resistance must be taken into account.
Furthermore, the slip is also influenced by the width of the measuring wheel,
the contact pressure, the tensile stress in the material to be measured andthe angle of contact.
The wrap angle should be as large as possible. The wheel bodies consist of
cast iron or plastic (according to marking).
The position of the measuring wheel should be selected so that the material
flow direction is away from the bearing point of the encoder.

Correct

Wrong
Measuring wheel or pulse
generator

Measuring wheel or pulse
generator

Material flow direction

Material flow direction

Errors and changes reservedDatasheet
Version 3 161120HF© Hengstler GmbH Uhlandstr. 49 D-78554 Aldingen/ Germany+49 74 24 -89 –0 E-mail: info@hengstler.com
Internet: www.hengstler.com

Page
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TECHNICAL DATASHEET
Measuring wheels
Profile 1
With edge and fine cross knurl
Material: aluminum
Application:e.g. threads and yarns.

Profile 2With glued-on profile rubber.
white pimpled rubber, especially adhesive rubber, low wear.
Application:e.g. paper and cardboard, cable measurement, grease-free metals, fleece, raw
or surface-treated wood, soft and hard plastics.

Profile 3
Rubber flooring with parallel knurled, vulcanized.
Application:e.g. for rubber, leather, textiles, floor coverings, glass.

Profile 4
Aluminum with parallel knurl.
Application:e.g. rubber, soft plastics, wood with rough surface, within limits also for
textiles.

Profile 5with edge, aluminum with parallel knurl.
Application:e.g. threads and yarns, tapes.

Profile 6
Plastic flooring.
Application:e.g. for wire, greased metals, steel profiles.

Errors and changes reserved

Datasheet
Version 3 161120HF© Hengstler GmbH Uhlandstr. 49 D-78554 Aldingen/ Germany+49 74 24 -89 –0 E-mail: info@hengstler.com
Internet: www.hengstler.com

Page
2/3

TECHNICAL DATASHEET
Measuring wheels
ORDER INFORMATION
Aluminum

1

ORDER INFORMATION
Plastics

Diameter

circumference

ProfileBore- Ø inmm

Item-number

1

Width of theRunning surface
in mm
4

6,37cm

0,2 m

4 H70 601 014

6,37cm0,2 m

147 H70 601 017

6,37cm0,2 m

2124 H70 601 118

6,37cm0,2 m2126 H70 601 048

6,37cm0,2 m

21210 H70 601 049

6,37cm0,2 m

2244 H70 601 0206,37cm

0,2 m

224

7 H70 601 092

6,37cm0,2 m

224

7 H70 601 192

6,37cm0,2 m420,54 H90 601 023

6,37cm

0,2 m

4

20,5

7 H90 601 093

6,37cm

0,2 m

516,5

7 H7

0 601 094

15,92 cm

0,5 m

225

7 H70 601 050

15,92 cm

0,5 m

225

7 H7

0 601 150

15,92 cm

0,5 m

225

10 H70 601 151

15,92 cm

0,5 m

325

7 H70 601 160

15,92 cm

0,5 m

325

10 H70 601 161

15,92 cm

0,5 m

325

12 H7

0 601 166

15,92 cm

0,5 m

4257 H70 601 121 1

15,92 cm

0,5 m

425

10 H70 601 157

15,92 cm

0,5 m

625

7 H70 601 063 1

15,92 cm

0,5 m

625

10 H70 601 163

15,92 cm

0,5 m

625

12 H70 601 165

5,73 cm

1/5 yd.

224

4 H90 601 042

9,70 cm

1 Fuß

225

7 H70 601 171

Bore- Ø inmm

Item –number

4 H80 601 100

meets PTB requirements
Diameter

circumference

Profile6,37 cm

0,2 m

1Width of theRunning surface
in mm
415.92 cm

0,5 m

425

7 H80 601 301

15.92 cm

0,5 m

625

7 H80 601 300

Errors and changes reserved

Datasheet
Version 3 161120HF© Hengstler GmbH Uhlandstr. 49 D-78554 Aldingen/ Germany+49 74 24 -89 –0 E-mail: info@hengstler.com
Internet: www.hengstler.com

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