NU228EM Cylindrical Roller Bearing 140x250x42mm - Industrial Bearings Solutions

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NU228EM Cylindrical Roller Bearing 140x250x42mm image

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Information techniques NU228EM Cylindrical Roller Bearing 140x250x42mm

Bearing number:7022 ACE/HCP4AL1
Size (mm):170x110x28
Bore Diameter (mm):170
Outer Diameter (mm):110
Width (mm):28
d:110 mm
D:170 mm
B:28 mm
d1:132.38 mm
d2:129.2 mm
D1:147.61 mm
b:1.8 mm
C1:9.05 mm
C2:5.4 mm
C3:5.4 mm
r1,2 - min.:2 mm
r3,4 - min.:1 mm
a:46.9 mm
da - min.:118.8 mm
db - min.:118.8 mm
Da - max.:161.2 mm
Db - max.:164.4 mm
ra - max.:2 mm
rb - max.:1 mm
dn:135.4 mm
Basic dynamic load rating - C:44.9 kN
Basic static load rating - C0:42.5 kN
Fatigue load limit - Pu:1.5 kN
Limiting speed for grease lubrication:11500 r/min
Limiting speed for oil lubrication:17500 mm/min
Ball - Dw:12.7 mm
Ball - z:30
Gref:23 cm3
Calculation factor - e:0.68
Calculation factor - Y2:1.41
Calculation factor - Y0:0.76
Calculation factor - X2:0.67
Calculation factor - Y1:0.92
Preload class A - GA:400 N
Preload class B - GB:1210 N
Preload class C - GC:2420 N
Calculation factor - f:1.1
Calculation factor - f1:0.99
Calculation factor - f2A:1
Calculation factor - f2B:1.03
Calculation factor - f2C:1.06
Calculation factor - fHC:1.01
Preload class A:263 N/micron
Preload class B:395 N/micron
Preload class C:518 N/micron
r1,2 min.:2 mm
r3,4 min.:1 mm
da min.:118.8 mm
db min.:118.8 mm
Da max.:161.2 mm
Db max.:164.4 mm
ra max.:2 mm
rb max.:1 mm
Basic dynamic load rating C:44.9 kN
Basic static load rating C0:42.5 kN
Fatigue load limit Pu:1.53 kN
Attainable speed for grease lubrication:11500 r/min
Attainable speed for oil-air lubrication:17500 r/min
Ball diameter Dw:12.7 mm
Number of balls z:30
Reference grease quantity Gref:23 cm³
Preload class A GA:400 N
Static axial stiffness, preload class A:263 N/µm
Preload class B GB:1210 N
Static axial stiffness, preload class B:395 N/µm
Preload class C GC:2420 N
Static axial stiffness, preload class C:518 N/µm
Calculation factor f:1.1
Calculation factor f1:0.99
Calculation factor f2A:1
Calculation factor f2B:1.03
Calculation factor f2C:1.06
Calculation factor fHC:1.01
Calculation factor e:0.68
Calculation factor (single, tandem) Y2:0.87
Calculation factor (single, tandem) Y0:0.38
Calculation factor (single, tandem) X2:0.41
Calculation factor (back-to-back, face-to-face) Y1:0.92
Calculation factor (back-to-back, face-to-face) Y2:1.41
Calculation factor (back-to-back, face-to-face) Y0:0.76
Calculation factor (back-to-back, face-to-face) X2:0.67
Mass bearing:1.93 kg

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