ConditionsShaftdiameterDimensionaltolerance2)Total radialrun-outtolerance3)Total axialrun-outtolerance3)Ramm–––µmRotating inner ring load or direction of load indeterminateLight loads (P ≤ 0,05 C)≤ 25j6IT5/2IT50,8 25 to 60k6IT5/2IT50,8 60 t

SymbolsOuter ringInner ringd1)Δdmp2)VdpVdmpΔBsΔB1sVBsKiaDiameter Series7,8,90,12,3,4overincl.highlowmaxmaxmaxmaxhighlowhighlowmaxmaxmmμmμmμmμmμmμmμm-2,50-8108660-40--12102,5100-8108660-1200-250151010180-8108660-1200-250201018300-101310880-1

HousingSizeDimensionsWidest bearing that fitsthe housingDesignationDimensionsba1)bcCaBbb–mm–mm SNL 20518242522205 E1817SNL 206-3052029322305 E2419SE 20723323422207 E2320,5 SE 208-30726 (22)33392307 E3124,5SE 20925323022209 E2322,5SE 21028 (24)354

ConditionsShaft diameterDimensionaltolerance2)Total radialrun-outtolerance3)Total axialrun-outtolerance3)Ramm–––µmRotating inner ring load or direction of load indeterminateLight loads (P ≤ 0,05 C)≤ 17js5IT4/2IT40,4 17 to 100j6IT5/2IT50,8

Bore diameterRadial internal clearancedC2NormalC3C4≤min.max.min.max.min.max.min.max.mmµm–30025204535605075304053025504570608540505353060508070100506510404070609080100658010454075651009012580100155050857511010514010012015555090851251251651201401560

HousingstandardLocking methodBore diameterBearing seriesHousing series Unit seriesMetricInchISOEccentric lockinggrub screws✔–YAR 2.. 2Fstandard seals withadditional flingers (fig. 1)standard grease (VT307)SYKSYK .. TF✔–YAR 2.. 2RFmultiple seals

Increasing the preload(back-to-back)Decreasing the preload(back-to-back)Increasing the preload(face-to-face)Decreasing the preload(face-to-face)BorediameterSizeRequisite spacer ring width reduction of bearings in the series1)719 CE719 ACE70 CE70 ACEd

7 to 12 m/s 12 m/s ShaftdiameterDimensionsGrub screwto DIN 913V-ring sealStandarddesignationAlternativedesignationda, db1)d1d2BB1B2DAmmmm–– 202027,258,53,5302,5M 3x520 VARCR 400200252532,158,53,5352,5M 3x525 VARCR 400250303037,258,53,5402,5M

Bore diameterAxial internal clearancedC2NormalC3C4≤min.max.min.max.min.max.min.max.mmµm10181565509585130120165184025756511010015013518540603585751251101651502006080451008514012517516521580100551109515013519018023510014070130115175160220205265140180

SealTypeFour-lipsplitV-ringFeltsplitLabyrinthTaconiteTaconiteEnd coverEnd coverDesignationTSN .. LTSN .. ATSN .. CTSN .. STSN .. NDTNF ..ASNH ..ETS ..Size range for adapter sleeve mounting3024 to 30323024 to 30323024 to 30323024 to 30563024 to 303230