Gears for contractor machines large and heavy case …
Both large and heavy case hardened and ground gears, gears for more compact planetary gears, spline shafts, spline bushings and toothed couplings are used. The requirements for the gears typically range from Class 6-8 according to DIN 3962 (AGMA 9-11) according to place of use, how much power being transmitted, and how fast they run.