I've run into a predicament where a circumventing slot on the bottom of the shaft motor interfered with the installation of a Omega Coupling.
I've seen this slot on several motor's but never knew why it was there. It seems the slot is for a special type of coupling that is held in place by a round key that allows the coupling to hang or be supported whereas it can then be adjusted.
My question is how do you specify a straight key'd shaft so that it does not come with this slot? And if so does it have a different design classification? I bought an 215HP and it came with this bottom circumventing slot. I called Omega and we walked through the details and found that the slot did interfer with the full face mounting of the QD bushing but allowance are available to raise the bushing above this slot and thereby use the coupling with a full facial bushing contact to the shaft surface.
What percent of end user's use this slotted motor shaft? Could you insert a filler piece into this slot and consider it a full contact surface for the bushing? I'm talking a 10HP 1800 RPM TEFC 215HP running with normal thrust provisions. The pump has its own thrust bearing so the transmitted loads should not be a major factor.
I'd be interested in your feed back - Thanks
Wayne
Wayne E. Lovison
service-parts@naglepumps.com
I've seen this slot on several motor's but never knew why it was there. It seems the slot is for a special type of coupling that is held in place by a round key that allows the coupling to hang or be supported whereas it can then be adjusted.
My question is how do you specify a straight key'd shaft so that it does not come with this slot? And if so does it have a different design classification? I bought an 215HP and it came with this bottom circumventing slot. I called Omega and we walked through the details and found that the slot did interfer with the full face mounting of the QD bushing but allowance are available to raise the bushing above this slot and thereby use the coupling with a full facial bushing contact to the shaft surface.
What percent of end user's use this slotted motor shaft? Could you insert a filler piece into this slot and consider it a full contact surface for the bushing? I'm talking a 10HP 1800 RPM TEFC 215HP running with normal thrust provisions. The pump has its own thrust bearing so the transmitted loads should not be a major factor.
I'd be interested in your feed back - Thanks
Wayne
Wayne E. Lovison
service-parts@naglepumps.com