Revolving Centres are Frictionless. Used for supporting heavy jobs and jobs revolving with high speeds. A high-speed steel inserted centre is supported by two bearings housed in a body. It is also called the revolving dead centre.
45) Which type of lathe centres having more life compared to other centres?
Answer is:
Revolving centre
Explanation:
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Answer is:
Longer level lead for the cutting edge
Answer is:
more than that required throughout the length
Answer is:
free movement of the blade
Answer is:
large diameter workpieces
Explanation:
Gap or extension-type lathes are similar to toolroom lathes except that gap lathes can be adjusted to machine larger diameter and longer workplaces The operator can increase the swing by moving the bed a distance from the headstock, which is usually one or two feet.
In a gap bed lathe, the gap is provided just below the nose of the headstock spindle.
