This is the basic model for positioning operation. It improves the response and reduces vibrations at the same time, making the stepping motor easier to use. The RK Series offers various types including a standard type, a terminal box type, and four geared types. Three frame sizes of 42 mm (1.65 in.), 60 mm (2.36 in.) and 85 mm (3.35 in.) [90 mm (3.54 in.)] are available. The wide-ranging motor variations and affordable price make the RK Series a perfect solution for your various applications.