The 180 model is a totally enclosed (JP44 JIS C4004-1980) shaft-to-shaft construction unit. Compactness and high torque (increased by 50 % of the conventional company products) have been implemented by one common armature. Air gap adjustment can be easily completed by loosing the bolt and turning the ring. The conventional adjustment by disassembling is not necessary. By changing the mounting foot position, the terminal block can be moved from right to left or up and down. The center height can be selected from two high-low levels