1-1/2" Round bore disc harrow bearing W209PPB4 with tri-lip seal & spherical outer race.
d : 1.535" / 39.000 mm
D : 3.346" / 85.000 mm
B : 1.188" / 30.163 mm
This W209PPB4 also known as:
BCA DS209TT4
NTN 3AC09-1-1/2