ntn rolling bearings handbook table 4.3 bearing number arrangement bearing number ... material heat treatment code type code bearing dimensions width/height series code ... code cage code seal/shield code suffix bearing ring shape code supplementary ... code prefix supplementary code t s 2 -7 3 05 b l1 d f 10 c 3 p 5 4 suffix ... code internal modification code u tapered roller bearing with international ... with synthetic rubber seal contact type bearing ring shape code k standard taper single ... bore 1/12 taper hole k30 standard taper single bore 1/30 taper hole combination ... duplex d2 set of 2 of same type of bearing g flush ground with spacer indicates ... preload code c2 p6 smaller than jis class 6 normal clearance p5 cn jis class 5 ...
ntn rolling bearings handbook table 5.1 tolerance for radial ... bearings except tapered roller bearings 1 inner rings nominal bore diameter d ... mm over 0.64 2.5 10 incl 2.5 10 18 30 50 80 120 150 180 250 315 400 500 630 ... deviation vdp diameter series 9 class 0,6,5,4,2 max 10 10 10 9 9 9 5 5 5 6 8 ... 2.5 5 2.5 6 2.5 7 4 diameter series 0,1 class 0,6,5,4,2 max 8 8 8 7 7 7 4 4 4 5 6 7 3 ... 3 3 4 5 5 6 8 8 9 2.5 2.5 2.5 2.5 2.5 4 5 7 ... 7 8 diameter series 2,3,4 class 0,6,5,4,2 max 6 6 6 8 9 11 5 5 5 6 8 9 ... 4 4 4 5 6 7 3 3 3 4 5 5 6 8 8 9 2.5 2.5 2.5 2.5 2.5 4 5 7 ... 7 8 class 0 class 6 class 5 class 4 class 2 high low high low high low high low ... 0 0 0 -8 -8 -8 -10 -12 -15 -20 -25 -25 -30 -35 -40 -45 -50 -75 -100 -125 -160 -200 ...