The teeth at the precision level of JIS0 or higher can be ensured by grinding the surface of high speed-up cylindrical gears with many teeth and small modules using a gear grinder. This realizes smooth, silent meshing even at a peripheral velocity of 100 m/s or higher. This product is used in a variety of equipment requiring high-speed rotation, such as compressors and power-generating units.
Gears that have two helical gears with different helix directions on the same axis are called double helical gears. The gear surface is ground using a gear grinder. This product is used in rotation devices that require high-speed rotation and because it has rightward and leftward helixes on the same axis, it offsets the thrust force generated and is advantageous in terms of design and use.