CNC Cutting Machine Practice Test

Question: 1 / 400

What characterizes planetary roller lead screws?

They have no moving parts

They use threaded rollers that revolve around the lead screw

Planetary roller lead screws are distinct because they incorporate threaded rollers that revolve around the lead screw. This design allows for reduced friction and increased efficiency compared to traditional lead screws. As the rollers move around the lead screw, they engage with its threads, converting rotational motion into linear motion more smoothly. This mechanism is critical in applications requiring high precision and load-bearing capability.

The structure of planetary roller lead screws lends itself to more compact installations and enables higher load capacities due to the distribution of the load across multiple rollers. This characteristic makes them suitable for various industrial applications, including CNC machines, robotics, and other automated systems.

Understanding the details about how these lead screws function can significantly aid in selecting the appropriate type of lead screw for specific applications, particularly in precision engineering contexts.

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They utilize standard ball bearings

They are only used in small-scale models

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