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 slippage and incorrect measuring results. Also the width of the measuring wheel has an impact on the result. Technical data - Small measuring wheels MR211 MR241 MR261 MR291 MR752 Circumference 20 cm 20 cm 20 cm 20 cm 30.48 cm Outer diameter 63.66 mm 63.66 mm 63.66 mm 63.66 mm 97.02 mm Surface profile cross knurl smooth knopped rubber knurled smooth Surface material Aluminium Hytrel TPE-E NBR Nitril Hytrel TPE-E Vulkollan PUR Wheel material Aluminium Plastic Aluminium Plastic Aluminium Surface hardness, approx. - 90° Shore A 55° ±5° Shore A 90° Shore A 65° Shore A Operating temperature -30...+180 °C -10...+70 °C -10...+50 °C -10...+70 °C -30...+80 °C Starting torque/pin 1.5 Nm 1.5 Nm 1.5 Nm 1.5 Nm 1.5 Nm MR542 MR552 MR562 MR592 50 cm 50 cm 50 cm 50 cm 50 cm Outer diameter 159.15 mm 159.15 mm 159.15 mm 159.15 mm 159.15 mm Surface profile cross knurl smooth smooth knopped rubber knurled Surface material Aluminium Hytrel TPE-E Vulkollan PUR NBR Nitril Hytrel TPE-E Wheel material Aluminium Plastic Aluminium Aluminium Plastic Surface hardness, approx. - 90° Shore A 94° Shore A 55° ±5° Shore A 90° Shore A Operating temperature -30...+180 °C -10...+70 °C -30...+80 °C -10...+50 °C -10...+70 °C Starting torque/pin 3 Nm 3 Nm 3 Nm 3 Nm 3 Nm Appropriate material to be measured Measuring accuracy Recommendend Surface Suitable material Hytrel grooved Plastic, painted material, paper, Cardboard, wood, metal, textiles Hytrel smooth Plastic, painted material, paper, Cardboard, wood, metal, textiles Knurled Cardboard, wood, (textiles) Knopped rubber Textiles, cloth Vulkollan smooth Plastic, painted material, paper, Cardboard, wood, metal, wire Precise measuring results of a meter counter with measuring 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 1 www.baumerivo.com 30/10/2008 MR512 Circumference Subject to modification in technic and design. Errors and omissions excepted. Technical data - Large measuring wheels Accessories & Service Measuring wheels Part number - 20 cm circumference MR211. A MR241. Bore 04 ø4 mm 07 ø7 mm MR261. A 04 06 07 10 Part number - 50 cm circumference D 04 05 06 07 10 MR291. Bore ø4 mm ø6 mm ø7 mm ø10 mm MR512. Bore ø4 mm ø5 mm ø6 mm ø7 mm ø10 mm MR552. Bore ø4 mm ø5 mm ø6 mm ø7 mm ø10 mm A Bore 07 ø7 mm 10 ø10 mm MR592. 06 07 10 12 A Bore 04 ø4 mm 07 ø7 mm 10 ø10 mm D 06 07 10 12 MR562. Bore ø6 mm ø7 mm ø10 mm ø12 mm A Bore 07 ø7 mm 10 ø10 mm D Part number - 1 foot circumference MR752. MR542. Bore 07 ø7 mm 10 ø10 mm D 04 05 06 07 10 A Bore ø6 mm ø7 mm ø10 mm ø12 mm Dimensions 159.15 ±0.2 24.8 ±0.3 17.5 8 x 18 M4 x 6 DIN916 2 ø20 ø7H8 100 ø18 12 ø4H 8 63.66 ± 0.1 M5 x 8 DIN914 www.baumerivo.com 30/10/2008 33 Subject to modification in technic and design. Errors and omissions excepted. MR542, MR592 MR241, MR291