• We just finished a fairly major forum upgrade. If you are having problems using the forums, please clear your browser cache and that should clear up any issues. Otherwise post in the Help Thread or email us at forum_moderator@aawforum.org. Happy Holidays!
  • It's time to cast your vote in the December 2024 Turning Challenge. (click here for details)
  • Congratulations to Vincent Luciani for "Flower Pot" being selected as Turning of the Week for December 23, 2024 (click here for details)
  • Conversations are now Direct Messages (click here for details)
  • Welcome new registering member. Your username must be your real First and Last name (for example: John Doe). "Screen names" and "handles" are not allowed and your registration will be deleted if you don't use your real name. Also, do not use all caps nor all lower case.

delta rockwell bearing replacement

Joined
Jan 25, 2005
Messages
2
Likes
0
I am having problems getting the 4groove pulley on my lathe to get at the bearings. Does this pulley come off first or is there another way. The lathe is a 60's or 70's 7x42. Help
 
accoustic blue said:
I am having problems getting the 4groove pulley on my lathe to get at the bearings. Does this pulley come off first or is there another way. The lathe is a 60's or 70's 7x42. Help

I'm not sure the specific model you have, but I found Tony Griffiths lathe site to be invaluable for me in rebuilding / restoring my old lathe. The delta / rockwell section in particular might be able to get you started.

If it's anything like mine, you'll need to remove at least one of the bearings to slide the pulley off.

--eric
 
pulley removal

Make sure that you REMOVE ALL set screws from the pulley before you start to remove the shaft.

I almost messed up a shaft and pulley once because I didn't realize how deeply the set screws were screwed in. I mistook "loose" for free and clear. And I was wrong.

With a lathe that old you might want to put some Liquid Wrench around the shaft at the pulley on both sides, and let it sit overnight. It can't hurt.
 
bearing replacement

The model is an 14/11 with the outboard pulleys. I checked the site you suggested but it was of no help. Thanks anyway, both of the screws that hold on the pulley are totally removed and the pulley turns freely but it does not come off over the left hand threads. should it? 🙁
 
Last edited:
misunderstood

Blue,

I'm sorry, I have no knowledge of your specific lathe and I assumed that the pulley was between the bearings. 😕

Since your original question involved changing the bearings, the shaft must either come out on the inboard side or the outboard side. Once you figure this out you may have your answer. A look at the schematic of the lathe may indicate this. But if the pulley is outboard and the spindlehead is too large to pass through the opening, the shaft must come out on the inboard side. In that case, the pulley must come off outboard, and pass over the threads.

This is all assuming that the shaft is solid and is not joined between the bearings.
 
accoustic blue said:
The model is an 14/11 with the outboard pulleys. I checked the site you suggested but it was of no help. Thanks anyway, both of the screws that hold on the pulley are totally removed and the pulley turns freely but it does not come off over the left hand threads. should it? 🙁

Take 2

I also have found the Old Woodworking Site to be extreamly helpful. For example, I think this is a picture of your lathe. (nice!) Spending a bit of time on the Rockwell section of this site may be of use to you in figuring out what you have and if there are any manuals, etc availiable.

I agree with Ed however, the shaft must either come out on the inboard side or the outboard side. Once you figure this out you may have your answer.

--eric
 
On my old TomLee there is a sealed bearning on one end and a brass bushing on the other. If that is the case on your lathe you will probably need to take a dead blow hammer and drive the shaft out (driving from the bushing toward the sealed bearning. On mine on the end with the sealed bearing the is a locking cap the holds the sealed bearing into the race.
 
It will be hard not to wreck it if it is aluminum

I'm doing the same thing on a different make. Now I'm looking for a new step pulley/sheave. Mine was aluminum and there is a chemical reaction that happens between the metals that make it almost impossible to remove without trashing it (after many year of sitting). If yours is steel all the above might work. Still you are confined and limited in movement. Good luck
 
accoustic blue said:
The model is an 14/11 with the outboard pulleys. I checked the site you suggested but it was of no help. Thanks anyway, both of the screws that hold on the pulley are totally removed and the pulley turns freely but it does not come off over the left hand threads. should it? 🙁

If the pulley turns freely on the spindle after removing the setscrews, but can't be removed, it is an indication that the setscrews have raised a dimple on the spindle shaft that is causing the problem. In that case, you may need to strong arm the pulley off by working it back and forth or by using a puller. Don't overlook the possibility that there is a small snap ring on the shaft holding the pulley. Before reinstalling the pulley, use a small file to clean up any burr or dimple caused by the setscrew.

Bill
 
Back
Top