All ISO tolerance classes are valid with the envelope requirement (such as E7) in accordance with ISO 14405-1:2010.
1)The low temperature performance limits (LTPL) are valid for roller bearings. LTPL values for ball bearings are approx. 20 °C (35 °F) lower.
ConditionsShaftdiameterShafttoleranceHousingtolerance–mm––Rotating inner ring loadallk6F7Stationary inner ring loadallg6J7
Number ofbearingsSpeed reduction factorfor preload classAB20,80,430,650,340,50,25
Shaft diameterTolerancefromtohighlowin.in.1 7/161 15/160–0.000524 15/160–0.001
Mode of operationFactor bMachines operating at constant speed, high requirements regarding smooth running and operational reliability1,1 ... 1,3Machines subjected to light shocks and where imbalance forces can occur1,3 ... 2Machines where heavy shock
TemperatureViscosityrange0 to 8 °Cmineral oilSAE 10W8 to 18 °Cmineral oilSAE 20W18 to 27 °Cmineral oilSAE 30W27 to 32 °Cmineral oilSAE 40W32 to 38 °Cmineral oilSAE 50W
1)Refer to the SKF traffic light concept.
Load PReduction factor≤ 0,05 C10,1 C0,70,125 C0,50,25 C0,2
PropertySpecificationThickenerLithium soapBase oil typeMineralNLGI consistency class2Temperature range [°F]–5 to +230Base oil viscosity [SUS]• at 105 °F900• at 210 °F82