Accessories & Service
Measuring wheels
Description
When selecting a measuring wheel the kind of material to
be measured has to be taken into consideration prior to
any decision on wheel surface respectively cover lining.
The wheel circumference depends on the space available
as well as on the size of counter or encoder. The smaller
the measuring wheel, the more force required at the wheel
circumference and consequently the higher the risk of slip-
page and incorrect measuring results. Also the width of the
measuring wheel has an impact on the result.
Technical data - Small measuring wheels
MR211
Circumference
Outer diameter
Surface profile
Surface material
Wheel material
Surface hardness, approx.
Operating temperature
Starting torque/pin
20 cm
63.66 mm
cross knurl
Aluminium
Aluminium
-
-30...+180 °C
1.5 Nm
MR241
20 cm
63.66 mm
smooth
Hytrel TPE-E
Plastic
90° Shore A
-10...+70 °C
1.5 Nm
MR261
20 cm
63.66 mm
knopped rubber
NBR Nitril
Aluminium
55° ±5° Shore A
-10...+50 °C
1.5 Nm
MR291
20 cm
63.66 mm
knurled
Hytrel TPE-E
Plastic
90° Shore A
-10...+70 °C
1.5 Nm
MR752
30.48 cm
97.02 mm
smooth
Vulkollan PUR
Aluminium
65° Shore A
-30...+80 °C
1.5 Nm
Technical data - Large measuring wheels
MR512
Circumference
Outer diameter
Surface profile
Surface material
Wheel material
Surface hardness, approx.
Operating temperature
Starting torque/pin
50 cm
159.15 mm
cross knurl
Aluminium
Aluminium
-
-30...+180 °C
3 Nm
MR542
50 cm
159.15 mm
smooth
Hytrel TPE-E
Plastic
90° Shore A
-10...+70 °C
3 Nm
MR552
50 cm
159.15 mm
smooth
Vulkollan PUR
Aluminium
94° Shore A
-30...+80 °C
3 Nm
MR562
50 cm
159.15 mm
knopped rubber
NBR Nitril
Aluminium
55° ±5° Shore A
-10...+50 °C
3 Nm
MR592
50 cm
159.15 mm
knurled
Hytrel TPE-E
Plastic
90° Shore A
-10...+70 °C
3 Nm
Subject to modification in technic and design. Errors and omissions excepted.
30/10/2008
Appropriate material to be measured
Recommendend
Surface
Hytrel grooved
Hytrel smooth
Knurled
Knopped rubber
Vulkollan smooth
Suitable material
Plastic, painted material, paper,
Cardboard, wood, metal, textiles
Plastic, painted material, paper,
Cardboard, wood, metal, textiles
Cardboard, wood, (textiles)
Textiles, cloth
Plastic, painted material, paper,
Cardboard, wood, metal, wire
Measuring accuracy
Precise measuring results of a meter counter with measur-
ing wheel depend on:
– Kind of measured material
– Contact angle
– Torque of counter or encoder
– Feeding speed
– Strain of measured material
– Surface roughness
– Contact pressure of material against measuring wheel
– Elastictiy of measured material
– Diametrical tolerance of the measuring wheel
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