UNIT 4 Recirculating ball screws

Analyze: What is a recirculating ball screw?

• A type of linear actuator
• A type of gear system
• A type of machine tool
• A type of ball bearing

Evaluate: What are the advantages of recirculating ball screws in CNC machines?

• High accuracy and repeatability
• High speed and low maintenance
• High torque and low noise
• High precision and low cost

Apply: What is the role of recirculating ball screws in CNC machines?

• To convert rotary motion into linear motion
• To convert linear motion into rotary motion
• To control the motion of machine tool
• To increase the speed of motion

Understand: What is the difference between a recirculating ball screw and a linear actuator?

• A recirculating ball screw has a higher accuracy
• A linear actuator has a higher accuracy
• A recirculating ball screw has a lower noise
• A linear actuator has a lower noise

Create: How does a recirculating ball screw improve the performance of a CNC machine?

• By increasing the accuracy and repeatability of motion
• By decreasing the speed and increasing the maintenance of motion
• By reducing the torque and noise of motion
• By improving the precision and cost of motion

Remember: What is the primary function of a recirculating ball screw in a CNC machine?

• To convert rotary motion into linear motion
• To convert linear motion into rotary motion
• To control the speed of motion
• To increase the accuracy of motion