Apex Dynamics has launched its accurate, compact and powerful range of PFII planetary gearboxes. Designed for use in shaft-driven actuators, linear units and machine axes, the PFII Series delivers high torque, low noise and precision. With an extremely compact and efficient design, PFII gearboxes feature an innovative coaxial configuration using a hollow input and output shaft. This means the output shaft is in line with the motor shaft, combining excellent performance with smart design.
PFII gearboxes feature hardened planetary gears, combining high torque and precise operation with low noise and high speed. In addition, the adapter housings are made from lightweight aluminium to reduce weight without compromising performance or reliability, and internal gearing is made from alloy steel to support both high torque and rigidity.
Advanced clamping ring
The PFII comes in three frame sizes, with a wide range of gear ratios from 3:1 to 1000:1, offering high flexibility. It provides high performance with a rated torque up to 232 Nm and high accuracy, with backlash down to six arc minutes. One of the key features of the PFII range is the way in which the output shaft is clamped. A radial clamping ring is used for both input and output shafts, with the clamping ring on the output side equipped with two radial bolts to handle higher torque. This offers significant benefits over traditional systems, providing easy assembly and maintenance, and compact design as well as higher tolerance, robustness and greater suitability for dynamic applications.
The PFII enables shaft-to-shaft power transmission connection between two rotating shafts and versatile mounting specific to the motor. Customized adapters are available for shaft actuators, while Apex Dynamics can also supply couplings where they are required.
