super precision bearings

Cylindrical Shafts and Housings for Cylindrical Roller BearingsTolerance Recommendations for Machining the Cylindrical Shafts for Cylindrical Roller BearingsDimensions in mmNominal shaft over 18 30 50 80 120 180 250 315 400 500diameter d including 30 50 80 120 180 250 315 400 500 630Tolerance Class SP Tolerances in µmDeviation of d 3 3.5 4 5 6 7 8 9 10 11-3 -3.5 -4 -5 -6 -7 -8 -9 -10 -11Cylindricity t 1 1 1 1.2 1.5 2 3 4 5 6 7Flatness t 3 1 1 1.2 1.5 2 3 4 5 6 7Axial runout t 4 1.5 1.5 2 2.5 3.5 4.5 6 7 8 9Coaxiality t 5 4 4 5 6 8 10 12 13 15 16Mean surface roughness R a 0.2 0.2 0.4 0.4 0.4 0.4 0.8 0.8 0.8 0.8Tolerance Class UP Tolerances in µmDeviation of d 2 2 2.5 3 4 5 6 6.5 7.5 8-2 -2 -2.5 -3 -4 -5 -6 -6.5 -7.5 -8Cylindricity t 1 0.6 0.6 0.8 1 1.2 2 2.5 3 4 5Flatness t 3 0.6 0.6 0.8 1 1.2 2 2.5 3 4 5Axial runout t 4 1 1 1.2 1.5 2 3 4 5 6 7Coaxiality t 5 2.5 2.5 3 4 5 7 8 9 10 11Mean surface roughness R a 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.4 0.4Tolerance Recommendations for Machining the Housings for Cylindrical Roller BearingsDimensions in mmNominal housing over 30 50 80 120 180 250 315 400 500 630diameter D including 50 80 120 180 250 315 400 500 630 800Tolerance Class SP Tolerances in µmDeviation of D +2 +3 +2 +3 +2 +3 +3 +2 0 0-9 -10 -13 -15 -18 -20 -22 -25 -30 -35Cylindricity t 1 1.5 2 2.5 3.5 4.5 6 7 8 9 10Flatness t 3 1.5 2 2.5 3.5 4.5 6 7 8 9 10Axial runout t 4 2.5 3 4 5 7 8 9 10 11 12Coaxiality t 5 4 5 6 8 10 12 13 15 16 18Mean surface roughness R a 0.4 0.4 0.8 0.8 0.8 1.6 1.6 1.6 1.6 1.6Tolerance Class UP Tolerances in µmDeviation of D +1 +1 +1 +1 0 0 +1 0 0 0-6 -7 -9 -11 -14 -16 -17 -20 -24 -28Cylindricity t 1 1 1.2 1.5 2 3 4 5 6 7 8Flatness t 3 1 1.2 1.5 2 3 4 5 6 7 8Axial runout t 4 1.5 2 2.5 3.5 4.5 6 7 8 9 10Coaxiality t 5 2.5 3 4 5 7 8 9 10 11 12Mean surface roughness R a 0.2 0.4 0.4 0.4 0.4 0.8 0.8 0.8 1.6 1.6EngineeringFAG · 167