Bearing QJ318 NSK -

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Bearing QJ318 NSK image

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Bearing QJ318 NSK Specifications

Bearing number:729 ACD/P4A
Size (mm):26x9x8
Bore Diameter (mm):26
Outer Diameter (mm):9
Width (mm):8
d:9 mm
D:26 mm
B:8 mm
d1:15.1 mm
d2:15.1 mm
D1:20.9 mm
r1,2 - min.:0.3 mm
r3,4 - min.:0.2 mm
a:8.3 mm
da - min.:11.4 mm
db - min.:11.4 mm
Da - max.:23.6 mm
Db - max.:24.2 mm
ra - max.:0.3 mm
rb - max.:0.2 mm
dn:16.3 mm
Basic dynamic load rating - C:4 kN
Basic static load rating - C0:1.6 kN
Fatigue load limit - Pu:0.067 kN
Limiting speed for grease lubrication:60000 r/min
Limiting speed for oil lubrication:90000 mm/min
Ball - Dw:4.762 mm
Ball - z:9
Gref:0.258 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:25 N
Preload class B - GB:50 N
Preload class C - GC:100 N
Preload class D - GD:200 N
Calculation factor - f:1.02
Calculation factor - f1:0.99
Calculation factor - f2A:1
Calculation factor - f2B:1.01
Calculation factor - f2C:1.02
Calculation factor - f2D:1.05
Calculation factor - fHC:1
Preload class A:32 N/micron
Preload class B:41 N/micron
Preload class C:54 N/micron
Preload class D:71 N/micron
r1,2 min.:0.3 mm
r3,4 min.:0.2 mm
da min.:11.4 mm
db min.:11.4 mm
Da max.:23.6 mm
Db max.:24.2 mm
ra max.:0.3 mm
rb max.:0.2 mm
Basic dynamic load rating C:3.97 kN
Basic static load rating C0:1.6 kN
Fatigue load limit Pu:0.067 kN
Attainable speed for grease lubrication:60000 r/min
Attainable speed for oil-air lubrication:90000 r/min
Ball diameter Dw:4.762 mm
Number of balls z:9
Reference grease quantity Gref:0.258 cm³
Preload class A GA:25 N
Static axial stiffness, preload class A:32 N/µm
Preload class B GB:50 N
Static axial stiffness, preload class B:41 N/µm
Preload class C GC:100 N
Static axial stiffness, preload class C:54 N/µm
Preload class D GD:200 N
Static axial stiffness, preload class D:71 N/µm
Calculation factor f:1.02
Calculation factor f1:0.99
Calculation factor f2A:1
Calculation factor f2B:1.01
Calculation factor f2C:1.02
Calculation factor f2D:1.05
Calculation factor fHC:1
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:0.02 kg

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