In this paper,the forming principle & meshing characteristics of tooth of double arc gear with circular arc trace is presented.

A generating principle of manufacturing circular arc teech contour and chain pit is introduced and the formulas of geometric parameters are basis of fabricating the special hoisting coil chain wheel machine tool.

Arcuate Tooth Trace Cylindrical Gear is a new type of gear,and has the merits of higher bending strength,lower noise, better lubrication effect, more adaptable about parallelism error of axis, no axial thrustforce, etc.

The authors proposed a high-efficiency CNC generating method for cylindrical gear with arcuate tooth traces,by means of a standard hob and studied the hobbing mechanism.

A study of the circular arc gear reliability based on improved FOSM method

Through processing super circular arc gear on numerical control machine tool,has explored the technology of numerical control processing about super spare parts,guaranteed the processing precision of spare parts,improved production efficiency and solved the processing problem of super spare parts.

Based on the fuzzy mathematics and the theory of the reliability design, the mathematics model of the fuzzy reliability design of the circular arc gears is established.