190 mm x 260 mm x 33 mm Preload class D GD SKF 11212TN9 Self Aligning Ball Bearings

High Quality 190 mm x 260 mm x 33 mm Preload class D GD SKF 11212TN9 Self Aligning Ball Bearings. 71938 ACD/P4AH1 Bearing number Competitive Self Aligning Ball Bearings Pricing. Accept Small Order. Easy and Fast Shipping.

Bearing number 71938 ACD/P4AH1
Size (mm) 260x190x33
Brand SKF
Bore Diameter (mm) 260
Outer Diameter (mm) 190
Width (mm) 33
d 190 mm
D 260 mm
B 33 mm
d1 211.6 mm
d2 211.6 mm
D1 238.4 mm
K 0.6 mm
C1 8.6 mm
r1,2 - min. 2 mm
r3,4 - min. 1 mm
a 69.2 mm
da - min. 199 mm
db - min. 199 mm
Da - max. 251 mm
Db - max. 255 mm
ra - max. 2 mm
rb - max. 1 mm
dn 217.4 mm
Basic dynamic load rating - C 163 kN
Basic static load rating - C0 208 kN
Fatigue load limit - Pu 5.8 kN
Limiting speed for grease lubrication 4500 r/min
Limiting speed for oil lubrication 6700 mm/min
Ball - Dw 22.225 mm
Ball - z 28
Gref 57 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 1000 N
Preload class B - GB 2000 N
Preload class C - GC 4000 N
Preload class D - GD 8000 N
Calculation factor - f 1.27
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
Preload class A 455 N/micron
Preload class B 599 N/micron
Preload class C 798 N/micron
Preload class D 1090 N/micron
r1,2 min. 2 mm
r3,4 min. 1 mm
da min. 199 mm
db min. 199 mm
Da max. 251 mm
Db max. 255 mm
ra max. 2 mm
rb max. 1 mm
Basic dynamic load rating C 163 kN
Basic static load rating C0 208 kN
Fatigue load limit Pu 5.85 kN
Attainable speed for grease lubrication 4500 r/min
Attainable speed for oil-air lubrication 6700 r/min
Ball diameter Dw 22.225 mm
Number of balls z 28
Reference grease quantity Gref 57 cm³
Preload class A GA 1000 N
Static axial stiffness, preload class A 455 N/µm
Preload class B GB 2000 N
Static axial stiffness, preload class B 599 N/µm
Preload class C GC 4000 N
Static axial stiffness, preload class C 798 N/µm
Preload class D GD 8000 N
Static axial stiffness, preload class D 1090 N/µm
Calculation factor f 1.27
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 4.35 kg

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