Technical - Page 50 - Case studies

2019-12-25

Housing bore diameter deviations for inch bearings with Normal tolerances

NominaldiameterDeviations for fits clearance/interference in accordance withF6ⒺG6ⒺH7ⒺH8ⒺJ7Ⓔ≤ULULULULULmmμm3050––––+36+25+50+25+25+145080––––+43+25+59+25+31+1380120––––+50+25+69+25+37+12120150––––+58+25+81+25+44+11150180––––

2019-12-25

Metric PTFE composite bushings – shaft and housing tolerances, operating clearance

Bushing dimensionsDiameter limits1)OperatingBoreOutsideWallShaftHousing boreBore diameter ofclearancediameterdiameterthickness(f7 for d ≤ 75 mm)(H7)mounted bushing(h8 for d75 mm)dDmax.min.max.min.max.min.max.min.min.max.mmmmμm34,50,7500,7303,000(h6

2019-12-25

Radial spherical plain bearings requiring maintenance

IllustrationDesignationCharacteristicsGE .. E(→ product section)(→ product table)Open (without seal), can only be relubricated from the side;available in metric sizesGE .. ESGEZ .. ES(→ product section)(→ product table)Open (without seal), ca

2019-12-25

Seals for general industrial applications, selected main designs

RG, RNitrile rubberVFluoro rubberTPolyetrafluoroethylene (PTFE)Seal designsDesignOperatingShaft-to-boreDynamicPressureMaximumtemperaturemisalignmentrunoutdifferentialshaft surfaceOutside diameterSealing lipAuxiliary liprange(STBM) TIR(DRO) TIRspeedCo

2019-12-25

Radial internal clearance of deep groove ball bearings

Bore diameterRadial internal clearancedC2NormalC3C4C5≤min.max.min.max.min.max.min.max.min.max.mmµm2,5607213823––––6100721382314292037101809318112518332545182401052013282036284824301115201328234130533040111620153328464064405011162318363051457350

2019-12-25

Axial internal clearance of matched metric single row tapered roller bearings, arranged face-to-face

Bore diameterAxial internal clearance of matched bearings in the series329320330331302, 322332303, 323313d≤min.max.min.max.min.max.min.max.min.max.min.max.min.max.min.max.mmµm–30––80120––––100140110150130170601003040160200100140––120160120

2019-12-25

Tolerances for metric tapered roller bearings - tolerance classes Normal and CL7C

Inner ring, bearing width and ring widthsdtΔdmptVdsptVdmptΔBstKiatΔTstΔT1stΔT2sTolerance classesNormalCL7C1)≤ULULULULULmmμmμmμmμmμmμmμmμm10180–121290–120157+2000+1000+100018300–121290–120188+2000+1000+100030500–121290–1202010+2000

2019-12-25

Axial internal clearance of NJ + HJ cylindrical roller bearings

BearingAxial internal clearance of bearings in the seriesBorediameterSizecodeNJ 2 + HJ 2NJ 3 + HJ 3NJ 4 + HJ 4NJ 22 + HJ 22NJ 23 + HJ 23min.max.min.max.min.max.min.max.min.max.mm–µm20044216542165––521855218325054216552185––521855218330064216552

2019-12-25

Radial internal clearance of cylindrical roller bearings with a cylindrical bore

Bore diameterRadial internal clearancedC2NormalC3C4C5≤min.max.min.max.min.max.min.max.min.max.mmµm–2402520453560507565902430025204535605075709530405302550457060858010540505353060508070100951255065104040706090801101101406580104540756510090125130165

2019-12-25

Radial internal clearance of cylindrical roller bearings with a tapered bore

Bore diameterRadial internal clearancedC2NormalC3C4C5≤min.max.min.max.min.max.min.max.min.max.mmµm–2415403055406550757095243020453560457055807510030402045406555807095901154050255545756090751051051355065306050807010090120125155658035706095851201101