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 |