- Joined
- Sep 28, 2022
- Messages
- 179
My motor had extended races. I was able to go to double row ball bearings. I even picked up a little weight carrying capacity. But spacers would also work.
I’ve posted a few pictures of my collet chuck which is a Hardinge Sjogren 5C hand-wheel type. It has a threaded spindle nose for step collets. This one has a protector over the threads. I like this choice for the Pratt & Whitney because the clutch and brake allow for easy tightening. It is user friendly and accurate.
I also have several other types of collets, chucks, hand wheel draw bars and lever types. The lever types are the quickest. The collet chucks with a scroll are the slowest. The hand wheel types are somewhere in between. On the Pratt & Whitney because of the long headstock and lack of access to the end of the spindle, I prefer the Hardinge Sjogren.
I’ve also included a pictures of the Morris taper center and adapter that I use. It is a MT5 with MT3 ID. You will also need a knock out bar and I’ve posted pictures of that.
I’ve posted a few pictures of my collet chuck which is a Hardinge Sjogren 5C hand-wheel type. It has a threaded spindle nose for step collets. This one has a protector over the threads. I like this choice for the Pratt & Whitney because the clutch and brake allow for easy tightening. It is user friendly and accurate.
I also have several other types of collets, chucks, hand wheel draw bars and lever types. The lever types are the quickest. The collet chucks with a scroll are the slowest. The hand wheel types are somewhere in between. On the Pratt & Whitney because of the long headstock and lack of access to the end of the spindle, I prefer the Hardinge Sjogren.
I’ve also included a pictures of the Morris taper center and adapter that I use. It is a MT5 with MT3 ID. You will also need a knock out bar and I’ve posted pictures of that.