I have a 1966 Block grinder. 1/3 hp. I am going to replace the bearings which are New departure 77503, which I can't find. How do I go about ordering new bearings and are these deep groove bearings? Ball or roller? And should I go with skf or is cheap ok? Thanks for any advice.
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craftsman bench grinder - bearings
- Thread starter lodestar
- Start date
I have a 1966 Block grinder. 1/3 hp. I am going to replace the bearings which are New departure 77503, which I can't find. How do I go about ordering new bearings and are these deep groove bearings? Ball or roller? And should I go with skf or is cheap ok? Thanks for any advice.
6203zz
Check out this thread as there is a ton of info about these grinders including bearings (post 3) https://www.garagejournal.com/forum/showthread.php?t=249539
rlitman
Well-known member
6203zz
Is there a reason you'd recommend ZZ over 2RS for this use? I'd think that 2RS would be less affected by the dust environment that grinders live in.
Is there a reason you'd recommend ZZ over 2RS for this use? I'd think that 2RS would be less affected by the dust environment that grinders live in.
I tend to use the sealed versions myself, but I just posted the number of the equivalent original bearings.
The shielded versions do have less friction, last longer and the spool down time is longer, but I agee that modern sealed bearings are more appropriate for typical DIY applications.