
| d | 50 | mm | |
| D | 80 | mm | |
| B | 16 | mm | |
| d1 | 59.2 | mm | |
| d2 | 59.2 | mm | |
| D1 | 70.8 | mm | |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 0.3 | mm |
| a | 23.2 | mm |


| da | min. | 54.6 | mm |
| db | min. | 54.6 | mm |
| Da | max. | 75.4 | mm |
| Db | max. | 78 | mm |
| ra | max. | 1 | mm |
| rb | max. | 0.3 | mm |
| dn | 61.2 | mm |
| Basic dynamic load rating | C | 28.1 | kN | |
| Basic static load rating | C0 | 23.2 | kN | |
| Fatigue load limit | Pu | 0.98 | kN | |
| Attainable speed for grease lubrication | 15000 | r/min | ||
| Attainable speed for oil-air lubrication | 24000 | r/min | ||
| Ball diameter | Dw | 9.525 | mm | |
| Number of balls | z | 18 | ||
| Reference grease quantity | Gref | 3.6 | cm³ | |
| Preload and stiffness (back-to-back, face-to-face) | ||||
| Preload class A | GA | 180 | N | |
| Static axial stiffness, preload class A | 141 | N/µm | ||
| Preload class B | GB | 360 | N | |
| Static axial stiffness, preload class B | 184 | N/µm | ||
| Preload class C | GC | 720 | N | |
| Static axial stiffness, preload class C | 244 | N/µm | ||
| Preload class D | GD | 1440 | N | |
| Static axial stiffness, preload class D | 331 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.11 | ||
| Calculation factor | f1 | 0.99 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.02 | ||
| Calculation factor | f2C | 1.05 | ||
| Calculation factor | f2D | 1.08 | ||
| 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 | 0.25 | kg |
| Model No. | Inner Diameter | Outer Diameter | Width | Type |
| 30328 | 140 | 300 | 67.75 | Bearings, units and housings |
|---|---|---|---|---|
| 314391 | 420 | 620 | 200 | Bearings, units and housings |
| 7011 CD/P4AL | 55 | 90 | 18 | Bearings, units and housings |
| 71910 CD/P4A | 50 | 72 | 12 | Bearings, units and housings |
| 7304 BECBM | 20 | 52 | 15 | Bearings, units and housings |
| 99328 | 82 | 91.059 | 21.5392 | Seals |
| BD-C 2206 KTN9-H 306 E | 25 | 62 | 20 | Bearings, units and housings |
| K 25x33x20 | 25 | 33 | 20 | Bearings, units and housings |
| NA 4917 | 85 | 120 | 35 | Bearings, units and housings |
| NNUD 6056 ECMAS/P53 | 280 | 420 | - | Bearings, units and housings |
| NU 311 ECJ | 55 | 120 | 29 | Bearings, units and housings |
| PBM 220240250 M1G1 | 220 | 240 | 250 | Bearings, units and housings |
Hot number:
122590
BD-21308 EK-AH 308
311-Z
31322 X/DF
320x360x20 HDS1 R
86544
7314 BECBPH
91704
BD-C 30/670 KM-AOH 30/670
HM 46 T
NKX 20
NN 3010 KTN/SP
SAFS 22218 TLC
SSAFS 22532
W 63800-2Z
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