NTN K45X63X51.8 needle roller bearings
are a Non-Expansion Bearing (Fixed) expansion type: few 3.4375 in d brands you will find in our inventory. Find 6.7200 in D NTN K45X63X51.8 needle roller bearings to see what’s in stock! d 3.4375 in expansion type: Non-Expansion Bearing (Fixed) D 6.7200 in seal type: Labyrnith non-contacting, non-purging seal with DuPont™ Teflon® bolt circle diameter: