1-1/8" Upper / 1.5" Bottom

F-13B / F-11B

ZS44/28.6 | ZS56/40

1. 1/8” Upper / 1.5” Bottom
ø28.6xID44xID56x39.8
Height        5.1+3=8.1mm
Weight       125g
Bearings     upper 5/32"x22, Lower 3/16"x23 (Ball Retainer)
Material      Steel
Finish          EDBK
F11B Lower cup OD 55mm 

click for drawing - F-13B
click for drawing - F-11B