Project ForgeManufacturing Engineering
Machining Processes
GATE 2021
Easy
In modern CNC machine tools, the backlash has been eliminated by
- preloaded ballscrews
- Brack and pinion
- Cratchet and pinion
- Dslider crank mechanism
Explanation
Preloaded (recirculating) ball screws remove the axial play between the screw and nut by applying a controlled preload, eliminating backlash in the drive.
Source: GATE ME 2021 Session 1 (ME-1) (2021)
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