Home › Forum › Ask A Member › Impeller – key vs pin to shaft › Re: Impeller – key vs pin to shaft
January 22, 2016 at 11:13 am
#30514
Yes, Frank makes a good point. The 40 has a taller impeller and the key is used typically on this application. The 33 would have a pin, since it has the thinner impeller.
Those old 33’s are good tough old motors. Basically a "continuation" of the old clamshell 35 of the late ’50’s, but they have the sligthly updated fiberglass hood and lower compression heads.