
| 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 | 16.8 | 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 | 29.6 | kN | |
| Basic static load rating | C0 | 24 | kN | |
| Fatigue load limit | Pu | 1.02 | kN | |
| Attainable speed for grease lubrication | 20000 | r/min | ||
| Attainable speed for oil-air lubrication | 32000 | 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 | 110 | N | |
| Static axial stiffness, preload class A | 64 | N/µm | ||
| Preload class B | GB | 220 | N | |
| Static axial stiffness, preload class B | 88 | N/µm | ||
| Preload class C | GC | 440 | N | |
| Static axial stiffness, preload class C | 124 | N/µm | ||
| Preload class D | GD | 880 | N | |
| Static axial stiffness, preload class D | 179 | N/µm | ||
| Calculation factors | ||||
| Calculation factor | f | 1.11 | ||
| Calculation factor | f1 | 1 | ||
| Calculation factor | f2A | 1 | ||
| Calculation factor | f2B | 1.02 | ||
| Calculation factor | f2C | 1.05 | ||
| Calculation factor | f2D | 1.09 | ||
| Calculation factor | fHC | 1.02 | ||
| Calculation factor | f0 | 15.4 | ||
| Mass bearing | 0.22 | kg |
| Model No. | Inner Diameter | Outer Diameter | Width | Type |
| 12446 | 31.75 | 50.8 | 6.35 | Seals |
|---|---|---|---|---|
| 6308-RS1 | 40 | 90 | 23 | Bearings, units and housings |
| C 4188 K30MB | 440 | 720 | 280 | Bearings, units and housings |
| FSAF 22215 | 75 | - | - | Bearings, units and housings |
| HE 218 | 82.55 | 90 | 52 | Bearings, units and housings |
| IR 80x90x35 | 80 | 90 | 35 | Bearings, units and housings |
| NU 319 ECM/C3VL0241 | 95 | 200 | 45 | Bearings, units and housings |
| PWM 120135120 | 120 | 135 | 120 | Bearings, units and housings |
| RN-6x17.8 BF/G2 | - | - | 6 | Bearings, units and housings |
| SAF 1515 x 2.1/2 | 63.5 | - | - | Bearings, units and housings |
| SYNT 75 LTS | 75 | - | - | Bearings, units and housings |
| W 61809 R-2Z | 45 | 58 | 7 | Bearings, units and housings |
Hot number:
150x180x15 HMS5 RG
25580/25520
420 VE R
52.7x70.5x14.2 TP
BC2B 322217
HE 318 E
NJ 2212 ECM
OKC 1000
OKCX 260
SAF 22624
PWM 190210180
S71918 CE/HCP4A
SAF 22536
W 61709-2RS1
W 61808-2RS1
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