I hope my questions below aren't already answered, if they are please let me know guys.
My lathe is an old classic Rockwell Beaver 3400 - 36" lathe 3/4 hp and these are my 3 lathe related questions:
1) I've currently removed the 2 bearings, front and rear (NSK 6204z and 6205z) from the headstock of my lathe. From researching online they classify these bearings as being Deep Groove Single Row Ball Bearings which are Sealed. Not being familiar with these types of bearings I'm wondering if there are any better quality Models/Brand that exist instead of NSK? Or are NSK bearings top of the line and should last for years? I’m currently sourcing the same ones, yet I figure if I'm going to put everything back together I want bearings that will last as long as possible and that are superior quality. Should I change these to another type of bearing style?
2) The spur centre on my lathe is threaded directly onto the spindle (no hole in the spindle). Do adapters exist that can be threaded onto the spindle so that I can add a tapered cup centre? If I am not mistaken these are right-hand threaded at 7/8-14 tpi.
3) Finally, has anyone had experience with the Rockwell Beaver 3400? Is it worth putting some money into it and keeping? I purchased it because I liked the fact that you can turn on each side of the headstock and because it is solid quality cast.
Any recommendation, suggestions or advice would be great guys. I appreciate your time and efforts everyone.