Re: Logan Bearingsd
Thanks Blue Chip.
My Ward/Logan 10" has a New Departure #77506 bearing in the left side of the headstock spindle. I think it has gone dry. There are no spacers or compression washers to provide load on this side. The bearing is 1 1/2 inch inner diameter and a single ball race. The part number on the bearing is the same as in the Logan parts list. So I assume it is a special made for Logan or at least part # stamped for Logan.
New Departure merged with Hyatt in the 80's and are now a division of GM. I would guess that the same bearing is made by several Mfgr's and marketed under various numbers.
For me, I am going to try to shoot some grease or oil into the bearing by drilling a small hole on the race shield. I have nothing to loose and the spindle seems tight and smooth. If I can't get a good finish on my work then I will tear down the headstock and replace the bearings.
Much of my noise at high speed was caused by misalignment of the motor/counter-shaft assembly. The belt outside was rubbing on the assembly's casting. The motor V belt was also slipping as a result.
But when I spin the spindle by hand with no load I can hear the bearings and it sounds like they are dry?
I was going to add a photo but do not know how to.
Thanks Blue Chip.
My Ward/Logan 10" has a New Departure #77506 bearing in the left side of the headstock spindle. I think it has gone dry. There are no spacers or compression washers to provide load on this side. The bearing is 1 1/2 inch inner diameter and a single ball race. The part number on the bearing is the same as in the Logan parts list. So I assume it is a special made for Logan or at least part # stamped for Logan.
New Departure merged with Hyatt in the 80's and are now a division of GM. I would guess that the same bearing is made by several Mfgr's and marketed under various numbers.
For me, I am going to try to shoot some grease or oil into the bearing by drilling a small hole on the race shield. I have nothing to loose and the spindle seems tight and smooth. If I can't get a good finish on my work then I will tear down the headstock and replace the bearings.
Much of my noise at high speed was caused by misalignment of the motor/counter-shaft assembly. The belt outside was rubbing on the assembly's casting. The motor V belt was also slipping as a result.
But when I spin the spindle by hand with no load I can hear the bearings and it sounds like they are dry?
I was going to add a photo but do not know how to.