Shaft diameterRadial internal clearancefromtomin.max.in.in.1 7/161 1/20.0010.0021 11/1620.00120.00222 3/162 1/20.00140.00262 11/1630.00180.00313 7/1640.00240.00394 7/164 1/20.00280.00474 15/1650.00350.0057

Housing variantTemperature rangeThickenerBase oil typeNLGI consistency classBase oil viscosity [mm2/s]at 40 °C(105 °F)at 100 °C(210 °F)General, high-speed and extreme temperature–20 to 110 °C (–5 to 230 °F)Lithium soapMineral220013Relubricati

Cage typeWindow­-typeWindow­-typeWindow­-typeMaterialSheet steel or machined steelSheet steelGlass fibre reinforced PA66Suffix––TN

Hollow shaft diameter ratioFactor e for bearings in the seriesdi/domNN 30 K, N 10 KNNU 49 Koverincl.-0,212,5120,20,314,5130,30,415140,40,516150,50,617180,60,71817

Bore diameterWidth tolerancesdtΔBs≤ULmmμm18800–60802500–802503000–100

(hardness ≤ 95 shA)Diameter/radialdepth ratioType of installationd/S ≤ 6Open groove6d/S ≤ 10Closed groove, installation with toold/S10Closed groove, installation by hand

Bore diameterRadial internalclearanceFrictional momentdmaxmaxmmμmNm5500,206500,258500,3010750,4012750,5014750,6016750,7018850,80201001,0221001,20

Gauge typeGauge  −μmStandard gauges0/−2−1/−3−2/−4−3/−5−4/−6−5/−7For additional gauges available on request, contact SKF.

Storage environment conditionsStorage timeRelative air humidityAmbient temperature%°C°Fyears6520 to 2570 to 75107520 to 2570 to 7557535 to 4095 to 1053Uncontrolled tropical conditions1)11)Contact SKF for advice on coping with extreme conditions or

Material propertiesBearing gradesilicone nitrideBearingsteelMechanical propertiesDensity [g/cm3]3,27,9Hardness1 600 HV10700 HV10Modulus of elasticity [kN/mm2]310210Thermal expansion [10-6/K]312Electrical properties (at 1 MHz)Electrical resistivity [