02 - Manufactured from hot-rolled round steel of article 45 according to GOST 2590-88. Often simply called a small pulley. The gear is mounted on the motor shaft, which is attached to the TSN.02.020 gearbox. It works in conjunction with the TSN.00.124 pulley. The pulley has 2 versions with different internal diameters for different motors: 32 mm for AIR112MB6 and 38 mm for AIR132S6.