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 |