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NN3076K/SPW33 super precision cylindrical roller bearing specification
| Designation | NN-3076-K/SPW33 | |
| Category | ||
| Cylindrical roller bearings, double row, super-precision | ||
| Dimensions | ||
| d (Bore diameter) | 380 mm | 14.961 in |
| D (Outer diameter) | 560 mm | 22.047 in |
| B (Width) | 135 mm | 5.315 in |
| W (Weight) | 105 kg | 231 lbs |
| Technical Data | ||
| Cr (kN) Basic dynamic load rating | 1680 | |
| C0r (kN) Basic static load rating | 3450 | |
| Fatigue load limit (kN) | 305 | |
| Attainable speed for grease lubrication (r/min) | 1300 | |
| Attainable speed for oil-air lubrication (r/min) | 1400 | |
| Reference grease quantity (cm3) | 1400 | |
| Internal design | K=tapered bore 1:12 | |
| Lubrication | Annular groove and three lubrication holes in the outer ring | |
| Precision | SP | |
NN.3076.K/SPW33 cylindrical roller bearing 380*560*135 mm
| Designation | Principal dimensions | Basic load ratings | Attainable speeds | ||||
| dynamic | static | Grease lubrication | Oil-air lubrication | ||||
| d[mm] | D[mm] | B[mm] | C[kN] | C0[kN] | [r/min] | [r/min] | |
| NNU 4968 B/SPW33 | 340 | 460 | 118 | 1 100 | 2 650 | 1 500 | 1 700 |
| NNU 4968 BK/SPW33 | 340 | 460 | 118 | 1 100 | 2 650 | 1 500 | 1 700 |
| NN 3072 K/SPW33 | 360 | 540 | 134 | 1 720 | 3 450 | 1 300 | 1 500 |
| NNU 4972 BK/SPW33 | 360 | 480 | 118 | 1 120 | 2 800 | 1 500 | 1 700 |
| NN 3076 K/SPW33 | 380 | 560 | 135 | 1 680 | 3 450 | 1 300 | 1 400 |
| NN 3080 K/SPW33 | 400 | 600 | 148 | 2 160 | 4 500 | 1 200 | 1 400 |
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