Type of loadFactor b11)Permissible specific bearing load--N/mm2Constant loadSingle direction1up to 300Variable loadAlternating direction or pulsatingmagnitude at a frequencyup to 0,5 Hz0,55up to 500,450 to 100over 0,5 to 1 Hz0,35up to 500,1550 to 100

RacewaydiameterMachiningallowancePre-groundraceway diameterFzFVGS≤mmmmmm–500,10FVGS = F + z50800,15(tolerance class h7Ⓔ)801800,201802500,252503150,303154000,354005000,40

Housing material1)Tolerance classes2)Housing bore seat3)Raceway on the shaftShaft inner ring seatSteel, cast ironN6h5k5Light alloyR6h5k51)For housings that are not rigid, determine the shaft tolerance by trial and error. 2)Envelope requirement (symbo

P90°P135°P180°Shaft diameterSafe loadsfromtoin the direction ofP90°P135°P180°in.lbf.2 7/163 1/217 2008 8009 5002 11/16320 80011 00012 0003 7/163 1/223 60013 60014 4003 11/16426 80016 20016 6004 7/164 1/229 60018 60019 2004 15/164 15/1632 80020

ShaftHousing/shaft tolerance classes1)for operating clearanceNominal diameter≤lower sidemediumhigher sidemm––80G6/j5G6/h5G6/g6H6/h5H6/g5H6/f680120G6/h5G6/g5G6/f6120–G6/h5G6/g5G6/f6–H6/f5H6/e61)Envelope requirement (symbol Ⓔ from ISO 14405-1) ap

Operating conditionsToleranceclass1)Insert bearings with grub screws or an eccentric locking collarP0,05 C and/or high speedsh60,035 CP ≤ 0,05 Ch70,02 CP ≤ 0,035 C and/or low speedsh8Simple bearing arrangements or P ≤ 0,02 Ch9 – h11Insert bearing

SeriesSizeRelubrication facilityIllustrationSteel/steel rod endsSA .. ESSI .. ESSIJ .. ESSC .. ES15 to 2015 to 2016 to 2020Lubrication hole,diameter 2,5 mmSA(A) .. ES(-2RS)SI(A) .. ES(-2RS)SIJ .. ESSIR .. ESSIQG .. ES(A)SC .. ESSCF .. ES25 to 8025 to

Thrust partTolerance class1)Housing boreseatShaft (racewayand inner ring seat)Angular contact ball bearingM6k5Thrust ball bearingK62)k5Cylindrical roller thrust bearingK62)k51)Envelope requirement (symbol Ⓔ from ISO 14405-1) applicable for all tol

ApplicationGeneral machineryRolling mills, metalsIndustrial gearboxesSpecial machineryIndustrial gearboxesHot strip millsGeneral machineryCrushers, shredders,Cold rolled plate millsRolling mills, papger millsbailers etc.Industrial gearboxedTypeGenera

SeriesPermissible operating temperature rangefromincl.fromincl.-°C°FSteel/steel rod endsSA .. E(S)SA(A) .. ES-2RSSI .. E(S)SI(A) .. ES-2RSSIQG .. ESSIJ .. ESSIR .. ESSC(F) .. ES-50-30-50-20-50-50-50-50+200+130+200+130+200+200+200+200-60-20-60-5-60-