71800CD/P4DGB SKF Super Precision,Super Precision Bearings,Super Precision Angular Contact,71800 Series,15 Degree Contact Angle
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Brand Name: | SKF |
Model Number: | 71800CD/P4DGB |
Bearing number: | 71956 CD/HCP4A |
Size (mm): | 380x280x46 |
Bore Diameter (mm): | 380 |
Outer Diameter (mm): | 280 |
Width (mm): | 46 |
d: | 280 mm |
D: | 380 mm |
B: | 46 mm |
Product Details
Bearing number | 71956 CD/HCP4A |
Size (mm) | 380x280x46 |
Bore Diameter (mm) | 380 |
Outer Diameter (mm) | 280 |
Width (mm) | 46 |
d | 280 mm |
D | 380 mm |
B | 46 mm |
d1 | 311.8 mm |
d2 | 311.8 mm |
D1 | 348.2 mm |
r1,2 - min. | 2.1 mm |
r3,4 - min. | 1.1 mm |
a | 67.4 mm |
da - min. | 291 mm |
db - min. | 291 mm |
Da - max. | 369 mm |
Db - max. | 374 mm |
ra - max. | 2 mm |
rb - max. | 1 mm |
dn | 319.7 mm |
Basic dynamic load rating - C | 291 kN |
Basic static load rating - C0 | 455 kN |
Fatigue load limit - Pu | 10.6 kN |
Limiting speed for grease lubrication | 4000 r/min |
Limiting speed for oil lubrication | 5600 mm/min |
Ball - Dw | 30.162 mm |
Ball - z | 31 |
Gref | 159 cm3 |
Calculation factor - f0 | 16.7 |
Preload class A - GA | 1090 N |
Preload class B - GB | 2180 N |
Preload class C - GC | 4360 N |
Preload class D - GD | 8720 N |
Calculation factor - f | 1 |
Calculation factor - f2A | 1 |
Calculation factor - f2B | 1.07 |
Calculation factor - f2C | 1.12 |
Calculation factor - f2D | 1.18 |
Calculation factor - fHC | 1.04 |
Preload class A | 295 N/micron |
Preload class B | 403 N/micron |
Preload class C | 565 N/micron |
Preload class D | 822 N/micron |
r1,2 min. | 2.1 mm |
r3,4 min. | 1.1 mm |
da min. | 291 mm |
db min. | 291 mm |
Da max. | 369 mm |
Db max. | 374 mm |
ra max. | 2 mm |
rb max. | 1 mm |
Basic dynamic load rating C | 291 kN |
Basic static load rating C0 | 455 kN |
Fatigue load limit Pu | 10.6 kN |
Attainable speed for grease lubrication | 4000 r/min |
Attainable speed for oil-air lubrication | 5600 r/min |
Ball diameter Dw | 30.162 mm |
Number of balls z | 31 |
Reference grease quantity Gref | 159 cm³ |
Preload class A GA | 1090 N |
Static axial stiffness, preload class A | 295 N/µm |
Preload class B GB | 2180 N |
Static axial stiffness, preload class B | 403 N/µm |
Preload class C GC | 4360 N |
Static axial stiffness, preload class C | 565 N/µm |
Preload class D GD | 8720 N |
Static axial stiffness, preload class D | 822 N/µm |
Calculation factor f | 1.27 |
Calculation factor f1 | 1 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.07 |
Calculation factor f2C | 1.12 |
Calculation factor f2D | 1.18 |
Calculation factor fHC | 1.04 |
Calculation factor f0 | 16.7 |
Mass bearing | 11.1 kg |