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Which of the following is used in mechanical type rotary tables?

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Which of the following is used in mechanical type rotary tables?

(a) Bevel gear

(b) Spur gear

(c) Worm and gear

(d) Pinion gear

This question was addressed to me in unit test.

Query is from Rotary Tables in division Angular Measurement and Circular Division of Engineering Metrology

1 Answer

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Right option is (c) Worm and gear

The explanation is: Mechanical rotary table which is cam compensated employs worm and gear as the angle measuring element but cam-compensation of gear error established the final accuracy of this type of rotary table.

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