Larger bearing removes the flat.  |Supplied with two bearings.
Specification:
D=41 mm|C=13 mm|C1=5 mm|C2=13 mm|B=12.7 mm|B2=19 mm|A=25 degrees|OL=62 mm|Shank Diameter=1/2 inch
    
    
    Specification:
D=41 mm|C=13 mm|C1=5 mm|C2=13 mm|B=12.7 mm|B2=19 mm|A=25 degrees|OL=62 mm|Shank Diameter=1/2 inch
        12 months