The R-Series is an additional family to the Z-Series. The R-Series comes in 3 sizes and 3 different ratios. It is designed with compact shaft or hollow bore choices. The series has an efficiency rating of 95 – 98 %, and maximum rotation speed up to 6000 RPM. The units have a heavy-duty construction, and are ATEX compatible. They can also be supplied with spiral bevel gears and low backlash.