Bore diameterReduction ofradial internalclearanceAxial drive-up1)2) ds Taper1:12Taper1:30≤min.max.min.max.min.max. mmµmmm10012050600,790,952,002,35Applying the recommended valuesprevents the inner ring fromcreeping, but does not ensurecorrect ra

Shaft diameterat the seal lipRotational speedfor circumferential speed limits2 m/s4 m/s7 m/s8 m/s12 m/s13 m/smmr/min 201 9103 8206 6807 64011 46012 410251 5303 0605 3506 1109 1709 930301 2702 5504 4605 0907 6408 280 351 0902 1803 8204 3706 5507 090

Steel cagesPolymer cagesBrass cagesCage typeRibbon-type, ballcentredRiveted,ball centredSnap-type,ball centredSnap-type,ball centredSnap-type,ball centredRiveted,ball, outerring or innerring centredMaterialStampedsteelStampedsteelPA66, glassfibre rei

Bore diameterRadial internal clearancedC2NormalC3C4C5≤min.max.min.max.min.max.min.max.min.max.mmμm182410202035354545606075243015252540405555757595304015303045456060808010040502035355555757510010012550652040406565909012012015065803050508080110110145

Bore diameterTolerance classesNormal1), P6P5dtΔdmptVdsp2)tΔSLtΔdmptVdsp2)tΔSL≤ULULULULmmμmμmμmμmμmμm1830+21013+210+13013+1303050+25015+250+16015+1605080+30019+300+19019+19080120+35022+350+22022+220120180+40031+400+25025+250180250+46038+460

Bore diameterAxial internal clearance of bearings in the seriesd718 A719 A70 A70 B72 B73 B74 B≤min.max.min.max.min.max.min.max.min.max.min.max.min.max.mmµm3060––––––––––––24646070––––––––––––2474100160––––24762676–––

Bore diameterRadial internal clearancedC2NormalC3C4C5≤min.max.min.max.min.max.min.max.min.max.mmμm24302030304040555575--30402535355050656585851054050304545606080801001001305065405555757595951201201606580507070959512012015015020080100558080110110140

HousingstandardLocking methodBore diameterBearing seriesHousing seriesY-unit seriesMetricInchISO1)Eccentric lockinggrub screws✔✔YAR 2.. 2Fstandard seals withadditional flingers (fig. 1)standard grease (VT307)PP .. TF✔✔P .. R-.. TF2)✔✔YAR 2.. 2

Nominaldimension  a12ⒺDeviations  a13ⒺDeviations  E11ⒺDeviations  E12ⒺDeviations  h11ⒺDeviations  ≤ULULULULULmmµmµmµmµmµm–3––––––––0-6036––––––––0-75610––––––––0-901018––––+142+32+212+320-1101830-30

ConditionsDimensionaltolerance2)Total radialrun-outtoleranceTotal axialrun-outtoleranceRa6)Displacementof outer ring–––µm–For non-split housings onlyRotating outer ring loadHeavy loads on bearings in thin-walled housings,heavy peak loads (P0,1 C