| Bearing number | 7210 ACD/HCP4A |
| Size (mm) | 90x50x20 |
| Bore Diameter (mm) | 90 |
| Outer Diameter (mm) | 50 |
| Width (mm) | 20 |
| d | 50 mm |
| D | 90 mm |
| B | 20 mm |
| d1 | 62.3 mm |
| d2 | 62.3 mm |
| D1 | 77.7 mm |
| r1,2 - min. | 1.1 mm |
| r3,4 - min. | 0.6 mm |
| a | 26.4 mm |
| da - min. | 57 mm |
| db - min. | 57 mm |
| Da - max. | 83 mm |
| Db - max. | 85.8 mm |
| ra - max. | 1 mm |
| rb - max. | 0.6 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 | 1.4 kN |
| Limiting speed for grease lubrication | 16000 r/min |
| Limiting speed for oil lubrication | 26000 mm/min |
| Ball - Dw | 12.7 mm |
| Ball - z | 15 |
| Gref | 6.708 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 | 265 N |
| Preload class B - GB | 530 N |
| Preload class C - GC | 1060 N |
| Preload class D - GD | 2120 N |
| Calculation factor - f | 1.08 |
| Calculation factor - f1 | 0.99 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.01 |
| Calculation factor - f2C | 1.03 |
| Calculation factor - f2D | 1.06 |
| Calculation factor - fHC | 1.01 |
| Preload class A | 171 N/micron |
| Preload class B | 223 N/micron |
| Preload class C | 295 N/micron |
| Preload class D | 398 N/micron |
| Category | Precision Ball Bearings |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Product Group | B04270 |
| Enclosure | Open |
| Precision Class | ABEC 7 | ISO P4 |
| Material - Ball | Ceramic |
| 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 | High Capacity Basic Design |
| Long Description | 50MM Bore; 90MM Outside Diameter; 20MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Ceramic Ball Material; 1 (Single) Bearing; 25 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring Ra |
| UNSPSC | 31171531 |
| Harmonized Tariff Code | 8482.10.50.28 |
| Noun | Bearing |
| Keyword String | Ball Angular Contact |
| Outside Diameter | 3.543 Inch | 90 Millimeter |
| Bore | 1.969 Inch | 50 Millimeter |
| Width | 0.787 Inch | 20 Millimeter |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 57 mm |
| db min. | 57 mm |
| Da max. | 83 mm |
| Db max. | 85.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 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 | 16000 r/min |
| Attainable speed for oil-air lubrication | 26000 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 | 171 N/µm |
| Preload class B GB | 530 N |
| Static axial stiffness, preload class B | 223 N/µm |
| Preload class C GC | 1060 N |
| Static axial stiffness, preload class C | 295 N/µm |
| Preload class D GD | 2120 N |
| Static axial stiffness, preload class D | 398 N/µm |
| Calculation factor f | 1.08 |
| Calculation factor f1 | 0.99 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.01 |
| Calculation factor f2C | 1.03 |
| Calculation factor f2D | 1.06 |
| Calculation factor fHC | 1.01 |
| 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 | 0.39 kg |
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