Testing True Running of Spindle Taper in Drilling Machines
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Testing True Running of Spindle Taper in Drilling Machines
Testing
True
Running
of
Spindle
Taper
in
Drilling
Machines
- A test mandrel is inserted in the tapered hole of spindle and a dial gauge (G) is fixed on the drilling machine table. The spindle is rotated slowly and the Dial variation in dial gauge reading if any is indicator noted down.
The error should not exceed 0.03 per 100 mm for machines with taper upto Morse No.2 and 0.04 per, 300 mm for machines with taper larger Fig. Checking true than Morse No.2
Checking True Running of Spindle Taper
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