Measuring wheels 305 mm - 12 inch

Measuring wheels made of aluminium cross-knurled or polyurethane coated with smooth running surface structure for length measurement of different materials, very good running properties, highest measuring accuracy, reduced mass due to optimised shaping.

Now also available in inch sizes.

Technical data - measuring wheels

technical dataMRAR 305MRAP 305MRAN 305MRAG 305
material corealuminiumaluminiumaluminiumaluminium
material running surfacealuminiumpolyurethanepolyurethanepolyurethane
running surface structurecross-hatched knurlingsmoothstuddedcorrugated
circumference305 mm ±0,2305 mm ±0,2305 mm ±0,2350 mm ±0,2
moment of inertia gcm21,50x1031,41x1031,19x1031,41x103
weight app.115 g115 g115 g115 g
fields of applicationpaperboardgreased metalsrough textilesungreased metal
 timbersteel profilescarpetlaquered surfaces
 textileslaquered surfacescable measurementsynthetics
 soft plasticpaper-paperboardpaper-paperboardtimber
  wire floor coverings
recommended pressure 15N15N15N


Thermal characteristics 
heat resistance short-termmax.    100ºC
permanent temperature resistancemax.     80ºC
cold resistanceuntil     -30ºC

the specified temperature depends on the area of application

Due to the large number of possible application and operating conditions, no guarantee can be given for the behaviour of a polyurethane compound in all areas of application. It is the responsibility of the user to test the material selection in a specific application to determine its intended use.


MRAR 305 - 12 Zollx x xxx
MRAP 305 - 12 Zoll       
MRAN 305 - 12 Zoll       
MRAG 305 - 12 Zoll       


Ø95 ≙ Ø 9,52mm/ Ø 3/8

To download the step file, please select the required bore combination.

Further bore sizes on request.

Technical drawings