Bowarrow 330        Three points caliper



Bowarrow 330 (13”) caliper calculates the wheel diameter by measuring the versine of the wheel arc encompassed between two tungsten carbide spherical points.

       The equipment is based on the Mitutoyo ID-C 543-485B indicator, which is capable of doing this type of calculation.


                   Bowarrow 330S     Three points caliper    LOW COST


          


Bowarrow 330S caliper measures the versine of the wheel arc encompassed between two tungsten carbide spherical points. The equipment is based on a normal dial comparator. The table in the picture is a table versine vs. diameter.