Rockwell/Delta 4" Jointer Cutter Head Bearings. Set of 2.
Bearings have a 15mm ID, 35mm OD, and are 11mm wide.
These bearings are used on later model (post mid 60's) 37-290 4" jointers. They will not fit early model 37-290 models that used SP-5336 extended race bearings.
Will also work on other brands and models of power tools and equipment that require this size bearing.