
| d | 50 | mm | |
| D | 80 | mm | |
| B | 16 | mm | |
| d1 | 60.25 | mm | |
| d2 | 57.9 | mm | |
| D1 | 69.75 | mm | |
| r1,2 | min. | 1 | mm |
| r3,4 | min. | 0.6 | mm |
| a | 16.8 | mm |


| da | min. | 54.6 | mm |
| db | min. | 54.6 | mm |
| Da | max. | 75.4 | mm |
| Db | max. | 75.8 | mm |
| ra | max. | 1 | mm |
| rb | max. | 0.6 | mm |
| dn | 62.3 | mm |
| Basic dynamic load rating | C | 15.6 | kN | |
| Basic static load rating | C0 | 10.6 | kN | |
| Fatigue load limit | Pu | 0.45 | kN | |
| Attainable speed for grease lubrication | 25000 | r/min | ||
| Attainable speed for oil-air lubrication | 38000 | r/min | ||
| Ball diameter | Dw | 7.938 | mm | |
| Number of balls | z | 21 | ||
| Reference grease quantity | Gref | 4.1 | cm³ | |
| Preload and stiffness (back-to-back, face-to-face) | ||||
| Preload class A | GA | 85 | N | |
| Static axial stiffness, preload class A | 42 | N/µm | ||
| Preload class B | GB | 250 | N | |
| Static axial stiffness, preload class B | 65 | N/µm | ||
| Preload class C | GC | 500 | N | |
| Static axial stiffness, preload class C | 88 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.08 | ||
| Calculation factor | f1 | 1 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.03 | ||
| Calculation factor | f2C | 1.05 | ||
| Calculation factor | fHC | 1 | ||
| Calculation factor | f0 | 8.2 | ||
| Mass bearing | 0.25 | kg |
| Model No. | Inner Diameter | Outer Diameter | Width | Type |
| 1175254 | 298.45 | 336.55 | 19.05 | Seals |
|---|---|---|---|---|
| 640x690x25 HDS1 R | 640 | 690 | 25 | Seals |
| 7044 CD/HCP4A | 220 | 340 | 56 | Bearings, units and housings |
| D/W R144 R-2Z | 3.175 | 6.35 | 2.779 | Bearings, units and housings |
| GEC 360 FBAS | 360 | 480 | 160 | Bearings, units and housings |
| HN 4020 | 40 | 47 | 20 | Bearings, units and housings |
| K 40x45x13 | 40 | 45 | 13 | Bearings, units and housings |
| LL 483448/418 | 760 | 889 | 69.85 | Bearings, units and housings |
| LM 545848/810 | 234.848 | 314.325 | 49.212 | Bearings, units and housings |
| SALA 70 TXE-2LS | 70 | - | 49 | Bearings, units and housings |
| SNW 121x3.11/16 | 93.6625 | 105 | 105.5878 | Bearings, units and housings |
| SNW 3028x4.15/16 | 125.4125 | 165.227 | 84.582 | Bearings, units and housings |
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