NTN 51205J Ball Bearings

الحد الأدنى لكمية 1 pcs
الأسعار Negotiable
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Bearing number 7009 ACB/P4AL
Size (mm) 75x45x16
Bore Diameter (mm) 75
Outer Diameter (mm) 45
Width (mm) 16
d 45 mm
D 75 mm
B 16 mm
d1 56.44 mm
d2 55.17 mm
D2 65.58 mm
b 1.5 mm
C1 8.6 mm
C2 3.6 mm
C3 2.6 mm
r1,2 - min. 1 mm
r3,4 - min. 0.6 mm
a 22.1 mm
da - min. 49.6 mm
db - min. 49.6 mm
Da - max. 70.4 mm
Db - max. 71.8 mm
ra - max. 1 mm
rb - max. 0.6 mm
dn 57.2 mm
Basic dynamic load rating - C 9 kN
Basic static load rating - C0 6.8 kN
Fatigue load limit - Pu 0.285 kN
Limiting speed for grease lubrication 24000 r/min
Limiting speed for oil lubrication 36000 mm/min
Ball - Dw 5.556 mm
Ball - z 25
Gref 2.93 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 54 N
Preload class B - GB 110 N
Preload class C - GC 330 N
Calculation factor - f 1.05
Calculation factor - f1 0.99
Calculation factor - f2A 1
Calculation factor - f2B 1.01
Calculation factor - f2C 1.04
Calculation factor - fHC 1
Preload class A 79 N/micron
Preload class B 103 N/micron
Preload class C 157 N/micron
r1,2 min. 1 mm
r3,4 min. 0.6 mm
da min. 49.6 mm
db min. 49.6 mm
Da max. 70.4 mm
Db max. 71.8 mm
ra max. 1 mm
rb max. 0.6 mm
Basic dynamic load rating C 12.1 kN
Basic static load rating C0 11.4 kN
Fatigue load limit Pu 0.285 kN
Attainable speed for grease lubrication 24000 r/min
Attainable speed for oil-air lubrication 36000 r/min
Ball diameter Dw 5.556 mm
Number of balls z 25
Reference grease quantity Gref 2.93 cm³
Preload class A GA 54 N
Static axial stiffness, preload class A 79 N/µm
Preload class B GB 110 N
Static axial stiffness, preload class B 103 N/µm
Preload class C GC 330 N
Static axial stiffness, preload class C 157 N/µm
Calculation factor f 1.05
Calculation factor f1 0.99
Calculation factor f2A 1
Calculation factor f2B 1.01
Calculation factor f2C 1.04
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 0.26 kg
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