Servofit PH321 inline precision planetary gearheads

The Servofit PH series from Stober is a family of inline planetary gearheads designed for servo motors. The PH321 designation corresponds to a specific frame size and single stage ratio within the series. These gearheads offer low torsional backlash, high torsional stiffness and high efficiency, using helical gearing and a compact housing, and the output shaft is available with or without keyway, with a flange for direct mounting. The input is adapted to many servo motor shaft sizes through clamping adapters, so the gearhead can be paired with motors from many manufacturers. They are lubricated for life, which reduces maintenance, and available in single and double stage ratios. Typical applications include packaging machinery, handling and pick and place systems, machine tools, printing, robotics and general servo driven axes where accuracy and dynamic response are needed.