Bearing number | 7210 ACD/P4A |
Size (mm) | 50x90x20 |
Bore Diameter (mm) | 50 |
Outer Diameter (mm) | 90 |
Width (mm) | 20 |
d | 50 mm |
D | 90 mm |
B | 20 mm |
C | 20 mm |
d1 | 62.3 mm |
d2 | 62.3 mm |
r1 min. | 1,1 mm |
r2 min. | 1,1 mm |
r3 min. | 0,6 mm |
r4 min. | 0,6 mm |
D1 | 77.7 mm |
D2 | 80,7 mm |
da min. | 57 mm |
Da max. | 83 mm |
db min | 57 mm |
ra max. | 1 mm |
rb max. | 0.6 mm |
dh | 65,6 mm |
Db max | 85,8 mm |
Weight | 0,46 Kg |
Basic dynamic load rating (C) | 42,3 kN |
Basic static load rating (C0) | 32,5 kN |
(Grease) Lubrication Speed | 14 000 r/min |
(Oil) Lubrication Speed | 22 000 r/min |
Fatigue load limit (Pu) | 1,37 |
Category | Precision Ball Bearings |
Inventory | 0.0 |
Minimum Buy Quantity | N/A |
Weight / Kilogram | 0.479 |
Product Group | B04270 |
Enclosure | Open |
Precision Class | ABEC 7 | ISO P4 |
Material - Ball | Steel |
Number of Bearings | 1 (Single) |
Contact Angle | 25 Degree |
Preload | None |
Raceway Style | 1 Rib Outer Ring |
Cage Material | Phenolic |
Rolling Element | Ball Bearing |
Flush Ground | No |
Inch - Metric | Metric |
Other Features | Single Row | Angular Contact | Super Precision | High Capacity |
Long Description | 50MM Bore; 90MM Outside Diameter; 20MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 1 (Single) Bearings; 25 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring Rac |
UNSPSC | 31171531 |
Harmonized Tariff Code | 8482.10.50.28 |
Noun | Bearing |
Keyword String | Angular Contact Ball |
Manufacturer Item Number | 7210 ACD/P4A |
Weight / LBS | 1.047 |
Bore | 1.969 Inch | 50 Millimeter |
Outside Diameter | 3.543 Inch | 90 Millimeter |
Width | 0.787 Inch | 20 Millimeter |
r1,2 min. | 1.1 mm |
r3,4 min. | 0.6 mm |
a | 26.4 mm |
db min. | 57 mm |
Db max. | 85.8 mm |
dn | 65.6 mm |
Basic dynamic load rating C | 42.3 kN |
Basic static load rating C0 | 32.5 kN |
Fatigue load limit Pu | 1.37 kN |
Attainable speed for grease lubrication | 14000 r/min |
Attainable speed for oil-air lubrication | 22000 r/min |
Ball diameter Dw | 12.7 mm |
Number of balls z | 15 |
Reference grease quantity Gref | 6.708 cm³ |
Preload class A GA | 265 N |
Static axial stiffness, preload class A | 154 N/µm |
Preload class B GB | 530 N |
Static axial stiffness, preload class B | 201 N/µm |
Preload class C GC | 1060 N |
Static axial stiffness, preload class C | 266 N/µm |
Preload class D GD | 2120 N |
Static axial stiffness, preload class D | 359 N/µm |
Calculation factor f | 1.08 |
Calculation factor f1 | 0.99 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.01 |
Calculation factor f2C | 1.02 |
Calculation factor f2D | 1.05 |
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 | 0.46 kg |