On generating principle, the model YBS3120 gear hobbing machine is designed for cutting spur and helical gears, sprockets and splines,etc. The worktable of the machine adopts duble-start worm gearing so it has high efficiency. It is suited for cutting small-sized gears for motorcycle and mini-bus industries on batch production in automatic cycle working method as well as only setup one time during cutting the workpiece.

The model YBS3120/1 gear hobbing machine has the same specifications and applications as those of the model YBS3120. It has advantage of single-start worm as its index gearing of the worktable and is well suited for cutting the workpiece with small module and multi-No of teeth.

The model YBS3112 gear hobbing machine has the same functions and applications as those of the model YBS3120. It has advantage of high spindle speed and can meet the requirements of cutting performance of hob with small module and diameter.

The series machines have been subjected to the acceptance test and delivery according to the Chinese standard GB/T8064-1998. The finishing working accuracy can be up to grade 7 according to GB/T10095-2008.