BEARINGDEXEvery bearing in the BearingDex database
450 basic numbers with dimensions, grouped by series. Open any one for its size, every brand's notation and what the codes mean.
60 · Deep groove ball, extra light
62 · Deep groove ball, light
The most-traded series in the industry.
63 · Deep groove ball, medium
64 · Deep groove ball, heavy
68 · Deep groove ball, thin section
SKF numbers these 618xx.
69 · Deep groove ball, very thin
SKF numbers these 619xx.
160 · Deep groove ball, extra thin
6xx · Miniature deep groove ball
Three digits: the last digit is the bore in mm. 608 is the skateboard bearing.
xx/22 · Slash-bore deep groove ball
Bore written directly after the slash. 62/22 has a 22 mm bore.
72 · Angular contact ball, light
Same envelope as the 62 series.
73 · Angular contact ball, medium
Same envelope as the 63 series.
32 · Double-row angular contact ball
12 · Self-aligning ball, light
13 · Self-aligning ball, medium
22 · Self-aligning ball, wide
NU2 · Cylindrical roller, light
NJ2 and NUP2 share these dimensions.
NU3 · Cylindrical roller, medium
NJ3 and NUP3 share these dimensions.
NJ2 · Cylindrical roller, light
NJ3 · Cylindrical roller, medium
NUP2 · Cylindrical roller, light
N2 · Cylindrical roller, light
222 · Spherical roller
223 · Spherical roller, heavy
302 · Tapered roller
Width is total assembled width T.
303 · Tapered roller, medium
Width is total assembled width T.
322 · Tapered roller, wide
Width is total assembled width T.
511 · Thrust ball
Third value is height H.
512 · Thrust ball
Third value is height H.
R · Inch ball bearings
Inch sizes. Width shown is the shielded or sealed width (ZZ, 2RS); open R6 and larger are narrower.
LM, L, M · Inch tapered roller sets
Listed by cone number. Dimensions are for the cone and its matching cup as a set, width T assembled. Timken SET numbers read as their set.