N22 KOYO Single-row cylindrical roller bearings

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N22 KOYO Single-row cylindrical roller bearings image

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N22 KOYO Single-row cylindrical roller bearings Details

Bearing number:71960 ACDMA/P4A
Size (mm):300x420x56
Bore Diameter (mm):300
Outer Diameter (mm):420
Width (mm):56
d:300 mm
D:420 mm
B:56 mm
C:56 mm
d1:337 mm
d2:337 mm
r1 min.:3 mm
r2 min.:3 mm
r3 min.:1,1 mm
r4 min.:1,1 mm
D1:383 mm
D2:– mm
da min.:313 mm
Da max.:405 mm
db min:313 mm
ra max.:2.5 mm
rb max.:1 mm
dh:347 mm
Db max:414 mm
Weight:23 Kg
Basic dynamic load rating (C):351 kN
Basic static load rating (C0):560 kN
(Grease) Lubrication Speed:2 200 r/min
(Oil) Lubrication Speed:3 400 r/min
Fatigue load limit (Pu):12,7
r1,2 min.:3 mm
r3,4 min.:1.1 mm
a:112.3 mm
db min.:313 mm
Db max.:414 mm
dn:347 mm
Basic dynamic load rating C:351 kN
Basic static load rating C0:560 kN
Fatigue load limit Pu:12.7 kN
Attainable speed for grease lubrication:2200 r/min
Attainable speed for oil-air lubrication:3400 r/min
Ball diameter Dw:38.1 mm
Number of balls z:26
Reference grease quantity Gref:265 cm³
Preload class A GA:2200 N
Static axial stiffness, preload class A:663 N/µm
Preload class B GB:4400 N
Static axial stiffness, preload class B:866 N/µm
Preload class C GC:8800 N
Static axial stiffness, preload class C:1146 N/µm
Preload class D GD:17600 N
Static axial stiffness, preload class D:1548 N/µm
Calculation factor f:1.22
Calculation factor f1:0.98
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.08
Calculation factor f2D:1.14
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:23 kg

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LY　MANUFACTURING CO.,LTD.: Address17th Floor,Viettower Building,No.1 Thai Ha street, Trunng Liet Ward, Dong Da District,; Phone(Working Time)91-22-28768900; Fax

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N22 KOYO Single-row cylindrical roller bearings Details

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LY　MANUFACTURING CO.,LTD.