• Accurate Engineers

Precision Gear Roll Tester

Accurate Engineers offers a Gear Roll Testing Unit, which facilitates double flank checking of gears up to 300 mm dia. The body of the roller tester is made out of cast iron, duly stress relieved. The hardened and ground moving base on which the master gear is mounted has 100 mm linear displacement with the help of cam arrangement. The second moving block is mounted on frictionless pre-loaded linear cross roller bearings. Gear mandrels are mounted on hardened and ground bushes with H6/h5 tolerance. The total composite error in gears can be tested on the roll tester, which includes parameters such as PCD, PCD run out and index error. The error in the component is displayed in the dial indicator mounted on spring loaded master block, the linear sensitivity of the testing unit is >5 microns. It is recommended to place the roll-testing unit on a stable base and should be levelled with the help of levelling screws and spirit level in both directions.