NNU4980SK.M.SP Cylindrical Roller Bearing 400x540x140mm

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Home>Products>Mud pump bearings>NNU4980SK.M.SP Cylindrical Roller Bearing 400x540x140mm image

NNU4980SK.M.SP Cylindrical Roller Bearing 400x540x140mm image

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NNU4980SK.M.SP Cylindrical Roller Bearing 400x540x140mm Dimensions

Bearing number:S7209 ACD/HCP4A
Size (mm):85x45x19
Bore Diameter (mm):85
Outer Diameter (mm):45
Width (mm):19
d:45 mm
D:85 mm
B:19 mm
d1:57.3 mm
d2:57.3 mm
D2:75.7 mm
r1,2 - min.:1.1 mm
r3,4 - min.:0.6 mm
a:24.8 mm
da - min.:52 mm
da - max.:56.5 mm
db - min.:52 mm
db - max.:56.5 mm
Da - max.:78 mm
Db - max.:80.8 mm
ra - max.:1 mm
rb - max.:0.6 mm
Basic dynamic load rating - C:41 kN
Basic static load rating - C0:30 kN
Fatigue load limit - Pu:1.2 kN
Limiting speed for grease lubrication:17000 r/min
Ball - Dw:12.7 mm
Ball - z:14
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:260 N
Preload class B - GB:520 N
Preload class C - GC:1040 N
Preload class D - GD:2080 N
Calculation factor - f:1.07
Calculation factor - f1:0.99
Calculation factor - f2A:1
Calculation factor - f2B:1.01
Calculation factor - f2C:1.03
Calculation factor - f2D:1.06
Calculation factor - fHC:1.01
Preload class A:162 N/micron
Preload class B:211 N/micron
Preload class C:280 N/micron
Preload class D:378 N/micron
r1,2 min.:1.1 mm
r3,4 min.:0.6 mm
da min.:52 mm
da max.:56.5 mm
db min.:52 mm
db max.:56.5 mm
Da max.:78 mm
Db max.:80.8 mm
ra max.:1 mm
rb max.:0.6 mm
Basic dynamic load rating C:41 kN
Basic static load rating C0:30 kN
Fatigue load limit Pu:1.25 kN
Attainable speed for grease lubrication:17000 r/min
Ball diameter Dw:12.7 mm
Number of balls z:14
Preload class A GA:260 N
Static axial stiffness, preload class A:162 N/µm
Preload class B GB:520 N
Static axial stiffness, preload class B:211 N/µm
Preload class C GC:1040 N
Static axial stiffness, preload class C:280 N/µm
Preload class D GD:2080 N
Static axial stiffness, preload class D:378 N/µm
Calculation factor f:1.07
Calculation factor f1:0.99
Calculation factor f2A:1
Calculation factor f2B:1.01
Calculation factor f2C:1.03
Calculation factor f2D: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:0.35 kg

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NNU4980SK.M.SP Cylindrical Roller Bearing 400x540x140mm Dimensions

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