Spur gear for machine tools

Construction of an 8 m diameter gear to drive the rotary table.

Technical details:

• Wheel weight: 3800 kg
• Material : 42CrMo4 TF

Galbiati Group performed machining operations on a large scale spur gear, which was built in a steel structure at 42CrMo4 TF and mainly designed for machine tool applications.

The spur gear consists of two congruent half-rings and of forged, turned and joined components to perform machining operations.

Firstly, the execution cycle included a turning operation followed by gear cutting and drilling.

At the end of the processing cycle, locating keys were applied to the spur gear.

The pictures below show different stages in the manufacture of the spur gear.