QB12-06-C Rotation Error Of Table Top

This test determines the maximum deviation of the table surface during rotation due to any lack of parallelism in the table top and any irregularities in the rolling thrust bearing elements (if applicable).

The table is placed on a granite surface plate and a dial indicator is positioned over the rim of the rotary table and supported by a rigid stand on the surface plate.

The indicator probe is positioned at approximately 0.9 x diameter max and readings taken at 30° increments during rotation of table top.