Ball Bearings
600 Series Extra Small Ball Bearings
608
Open
608Z
1 Shield
608ZZ
2 Shields
608RS
1 Contact Seal
6082RS
2 Contact Seals
608NR
Retain. Ring, Groove on OD

600 SERIES
Extra Small Ball Bearings

600 SERIES BALL BEARINGS | EXTRA SMALL
NPB
Part No.
RFQ per item
Bore Outside Diameter Width Max.
Fillet
Radius
Balls Static
Load
Lbs.
Dynamic
Load
Lbs.
Frac. Inch Tol. Frac. Inch Tol. Tol. +.0000
-.0050
No. Diam.
Open Seal/Shield
634 4 .1575 -.0003 16 .6299 -.0004 5 .1969 .012 6 1/8 165 330
635 5 .1969 -.0003 19 .7480 -.0004 6 .2362 .012 7 1/8 195 385
626 6 .2362 -.0003 19 .7480 -.0004 6 .2362 .012 7 1/8 195 385
627 7 .2756 -.0003 22 .8661 -.0004 7 .2756 .012 7 5/32 305 570
608 8 .3150 -.0003 22 .8661 -.0004 7 .2756 .012 7 5/32 305 570
608N2 7.932 .3123 -.0003 22 .8661 -.0004 7 .2756 .012 7 5/32 305 570
608N3 7.940 .3126 -.0003 22 .8661 -.0004 7 .2756 .012 7 5/32 305 570
629 9 .3543 -.0003 26 1.0236 -.0004 8 .3150 .025 7 3/16 440 780
Material: Standard SAE 52100
Stainless Steel available upon request