Novak Velociti Bearings

[dibble34]

Hi All

The bearings in my Novak motor have given up. Though the car was noisy and turns out this is the cause, it started locking up today!. I defo need the bottom bearing and think i may as well do the top one at the same time. My question is does anyone know what size they are? I found a kit on the Novak website, but none of the usual suspects seem to stock it part 5916. if i can find out the size of each then i hope to order them on their own. Any advice gratefully received

Dave