Alternative bearing B127A removes the lower quirk.
Specification:
C=1/2 inch|C=12.7 mm|B=9.5 mm|R=4 mm|R2=4 mm|OL=64.5 mm|Shank Diameter=1/4 inch
Specification:
C=1/2 inch|C=12.7 mm|B=9.5 mm|R=4 mm|R2=4 mm|OL=64.5 mm|Shank Diameter=1/4 inch
12 months
