AM Planetary Carrier

Product Overview

Specifications

• Diameter: 1-3/8 in.
• Diametral Pitch: 32
• Length: 15/16 in.
• Material: 1117 Steel
• Pin Diameter: 0.125 in.
• Pressure Angle: 20 degrees
• Teeth: 15
• Weight: 0.07 lbs

Introduction to Planetary Gearsets

Most commonly-encountered gear trains are relatively simple, having only one input and one output, and thus only one overall ratio. The planetary gearset is much more versatile since it has two inputs and one output. As we will see, this versatility comes at a price: planetary gearsets are much more complicated to design and analyze than ordinary gearsets. They often behave in counterintuitive ways, making their use all the more difficult (but enjoyable!) As with standard gearsets, however, a few simple rules can be used to determine the performance and efficiency of any planetary gearset.The most common type of planetary gearset is shown in the figure above. It consists of four major components: the sun, one or more planets, a ring gear, and a carrier (often called the arm or the spider). The significant difference between planetary and ordinary gearsets is that the planets 'orbit' the sun; their shafts are not fixed in space. It is this epicyclic motion that permits such exciting behavior.