Need 1N4437 bridge rectifier...

Group,

Anyone know a source for this item? Mounts with a 1/4" bolt on the
back. Metal case. At 110V ac input, ouput is 90V dc. Probably
about 10 amp rating.

Apparently this was widely used 20-30 years ago. My local sources
don't even show the number in their listings.

It's for the high/low clutch mechanism in a Hardinge DSMA.

Lacking the exact part number I replaced it with one of those plastic
cased rectifiers with 30A rating. Output is around 110V dc. Seems
like the clutch actuating coils are running a little hot, although I
can't say for sure since I never checked them until now.

Anyway, it'd be nice to get the exact replacement part.

Thanks,

Doug