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15th October 2018, 09:20 PM #1New Member
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Motor Replacement on Rockwell Delta lathe
I'm a new member and would like to seek some advice - need to replace a burnt out motor on an old Rockwell Delta lathe. The motor has no nameplate on it so not sure of rating. It has a 5/8" shaft diameter with a 3 stage pulley. What motor would suit the best in terms of speed / power? I'm thinking maybe a 4-pole (1400rpm), 1hp/0.75kW.
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15th October 2018, 10:39 PM #2GOLD MEMBER
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Some photos would help in identifying a suitable motor for your lathe. Also measurements of the base plate.
KrynTo grow old is mandatory, growing up is optional.
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16th October 2018, 02:44 AM #3GOLD MEMBER
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- Sep 2008
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- North Carolina, USA
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I think your choice is a good one. You do not want a 2800 rpm motor. As a cheap turner I would take your old motor and pulley to a motor repair shop and ask for a good used or rebuilt motor with same mount and shaft. Have them move the pulley unless you are familiar with old, sometimes cranky machinery. Get good instructions on the electrical connections.
You might ask the shop if the motor can be repaired. Usually on small motors it is not cost effective, but it doesn't hurt to ask. If your lathe is a bench top, the motor is likely to be 3/4 HP, a 1 HP would be better but not too much.
If you opt for new, same instructions apply. Life is easier if the new base plate of the motor matches the holes on the lathe.
Some discussion here: Need motor for Rockwell 46-111 | American Association of WoodturnersSo much timber, so little time.
Paul
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16th October 2018, 05:00 PM #4GOLD MEMBER
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Welcome to the forum Chris.
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16th October 2018, 06:40 PM #5
This chart may help you determine the frame size at least.
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