Pressure angle of involute gears does not exceed 250, since

1.	Pressure angle of involute gears does not exceed 250, since
A.	this will lead to unwanted radial force
B.	the number of teeth to avoid undercutting will be very high
C.	no cutters are available
D.	gear will become too small
Answer» B. the number of teeth to avoid undercutting will be very high

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