Joe Michaels
Diamond
- Joined
- Apr 3, 2004
- Location
- Shandaken, NY, USA
Last November, I bought a model 360 K.O. Lee Tool & Cutter Grinder from one of our members. After a year with some health issues, I am getting the tool & cutter grinder ready for use. This tool & cutter grinder is old enough to have the flat belt drive for the spindle. K.O. Lee obsoleted the flat belt drive spindles in favor of V belt drive some years ago. The spindle supplied with the tool & cutter grinder has a small female taper at one end, and a 5/8" diameter plain shaft, threaded for a lock nut, at the drive end. This drive end accepts the flat belt pulleys and also has one flat belt pulley machined integrally with the spindle end shield/flange.
The small female taper at the business end of the spindle has one (1) arbor with it. This is a collet chuck with 1/4" collet. OK for 'mounted grinding points'. The small female taper is too light to handle an arbor extension to take the usual tool and cutter grinder wheels (most typically being a 4 1/2" cup wheel).
I am in need of another spindle assembly for the 360 tool & cutter grinder. The quill is nominally 3" outer diameter. I would like to get a heavier-duty spindle with a male taper of 3" tpf, for handling the 1 1/4" bore grinding wheels.
If anyone has a grinder spindle with 3" OD quill and 3" tpf male arbor with locking nut, I would like to find out about buying it. I can adapt another spindle with 3" OD quill by modifying the pulleys or going to vee belt drive.
I had thought of making another grinder spindle from scratch, but when I priced out a chunk of 3" TGP 1141 Stressproof (and tried to find 3" diameter 4140 or 4340 prehardened TGP), the prices were way up there. I'd also be machining my own spindle, so using an unhardened spindle, and getting a set of matched high precision bearings and dust seals would be another major expense. While making my own spindle is do-able, it would be a whole lot easier, quicker, and more economical to find a used spindle. I want to go with the 3" TPF on the arbor because my Boyar-Schultz surface grinder also uses 3" TPF on its arbor and I have plenty of extra Sopko wheel adapters. I would like to keep the 'high speed' spindle that came with this tool and cutter grinder, as having the collet chuck for ID grinding is going to be of use to me.
If anyone has a grinder spindle to sell, please PM me.
Thanking you-
Joe Michaels
The small female taper at the business end of the spindle has one (1) arbor with it. This is a collet chuck with 1/4" collet. OK for 'mounted grinding points'. The small female taper is too light to handle an arbor extension to take the usual tool and cutter grinder wheels (most typically being a 4 1/2" cup wheel).
I am in need of another spindle assembly for the 360 tool & cutter grinder. The quill is nominally 3" outer diameter. I would like to get a heavier-duty spindle with a male taper of 3" tpf, for handling the 1 1/4" bore grinding wheels.
If anyone has a grinder spindle with 3" OD quill and 3" tpf male arbor with locking nut, I would like to find out about buying it. I can adapt another spindle with 3" OD quill by modifying the pulleys or going to vee belt drive.
I had thought of making another grinder spindle from scratch, but when I priced out a chunk of 3" TGP 1141 Stressproof (and tried to find 3" diameter 4140 or 4340 prehardened TGP), the prices were way up there. I'd also be machining my own spindle, so using an unhardened spindle, and getting a set of matched high precision bearings and dust seals would be another major expense. While making my own spindle is do-able, it would be a whole lot easier, quicker, and more economical to find a used spindle. I want to go with the 3" TPF on the arbor because my Boyar-Schultz surface grinder also uses 3" TPF on its arbor and I have plenty of extra Sopko wheel adapters. I would like to keep the 'high speed' spindle that came with this tool and cutter grinder, as having the collet chuck for ID grinding is going to be of use to me.
If anyone has a grinder spindle to sell, please PM me.
Thanking you-
Joe Michaels