NSK UK 609Z Ball Bearings

Min.Order Quantity 1 pcs
Price Negotiable
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Product Details

Bearing number 71808 ACD/HCP4
Size (mm) 52x40x7
Bore Diameter (mm) 52
Outer Diameter (mm) 40
Width (mm) 7
d 40 mm
D 52 mm
B 7 mm
d1 44.1 mm
d2 44.1 mm
D1 48.1 mm
r1,2 - min. 0.3 mm
r3,4 - min. 0.15 mm
a 14.3 mm
da - min. 42 mm
db - min. 42 mm
Da - max. 50 mm
Db - max. 51.2 mm
ra - max. 0.3 mm
rb - max. 0.15 mm
dn 44.5 mm
Basic dynamic load rating - C 4.5 kN
Basic static load rating - C0 4.6 kN
Fatigue load limit - Pu 0.196 kN
Limiting speed for grease lubrication 28000 r/min
Limiting speed for oil lubrication 43000 mm/min
Ball - Dw 3.175 mm
Ball - z 29
Gref 0.31 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 40 N
Preload class B - GB 120 N
Preload class C - GC 240 N
Calculation factor - f 1.23
Calculation factor - f1 0.97
Calculation factor - f2A 1
Calculation factor - f2B 1.09
Calculation factor - f2C 1.17
Calculation factor - fHC 1.02
Preload class A 93 N/micron
Preload class B 145 N/micron
Preload class C 197 N/micron
r1,2 min. 0.3 mm
r3,4 min. 0.15 mm
da min. 42 mm
db min. 42 mm
Da max. 50 mm
Db max. 51.2 mm
ra max. 0.3 mm
rb max. 0.15 mm
Basic dynamic load rating C 4.49 kN
Basic static load rating C0 4.55 kN
Fatigue load limit Pu 0.196 kN
Attainable speed for grease lubrication 28000 r/min
Attainable speed for oil-air lubrication 43000 r/min
Ball diameter Dw 3.175 mm
Number of balls z 29
Reference grease quantity Gref 0.31 cm³
Preload class A GA 40 N
Static axial stiffness, preload class A 93 N/µm
Preload class B GB 120 N
Static axial stiffness, preload class B 145 N/µm
Preload class C GC 240 N
Static axial stiffness, preload class C 197 N/µm
Calculation factor f 1.23
Calculation factor f1 0.97
Calculation factor f2A 1
Calculation factor f2B 1.09
Calculation factor f2C 1.17
Calculation factor fHC 1.02
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 0.029 kg
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Worktime З понеділка по п'ятницю: з 9:00 до 18:00
Phone 00(65) 6258 1688
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