Planetary Epicyclic Drives - Type SA

Function:

The unit is comprised of three principle elements:

• #1 - Case-Planet Carrier
• #2 - Torque Arm Sleeve Sun Gear
• #3 - Central Bore Sun Gear

These three elements are mechanically connected by the sun and planet gears which make up this epicyclic gear train.

The Willis formula (below) is a simple relationship between the rotational speeds of the three elements:

The motion of the elements can be seen in the following:

Applications:

The Planetary Epicyclic Drive offers many simple mechanical drive solutions by combining the motion of the three elements:

• Reducer/Increaser
• Two or More Speeds
• Phase-Shifting
• Precise Speed Adjustment
• Creation of a Relative Speed While Running
• Cyclic Synchronization of Two Speeds
• Timing Movements
• Balance Speed & Torque

To insure proper selection, please consult the factory.  If you have any questions regarding the information provided here or require more information, please call us at (800) 713-6170 or e-mail us. Our Sales and Engineering departments are ready to help you with your specific power transmission needs.