Material:

Worm shaft -- 18CrNiMo7-6

Heat Treatment -- Carburizing

Worm wheel -- CuSn12Ni2Fe2

Accuracy:

Worm shaft -- DIN6

Worm wheel -- DIN8

Worm wheel is of alloy bronze material, shrink fitted on the hub. 

The screw-down worm gears are designed and manufactured to drive two large rollers that roll steel slabs to the desired plate thickness. A breakdown would have stopped production, so customer come to us because of our unique ability to manufacture large worm gear sets of this size and specifications.