Ideal Motor Size

Dear All,
We have generally been using 962 [i.e. 9-5/8" ] Motors in 12-1/4" Hole,but recently I've been told to use 8-1/4" motors.
What are your suggestions regarding the motor size to be used in 12-1/4" Hole? with the merits and demerits of each.
When inquired, from SLB experience they say, they have a lot of twist off failures due to BSR and hence they prefer 9-5/8" Motors.

8 Answer(s)

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