Please enter your email address and we will reply to your email.
Super-precision axial-radial cylindrical roller bearings are commonly used to support rotary tables, indexing heads and multi-spindle heads on machining centres. SKF manufactures super-precision axial-radial cylindrical roller bearings for shaft diameters from 80 to 850 mm. Their internal design, together with close tolerance manufacturing processes, enables these bearings to attain radial run-out better than, and axial run-out close to, P4 tolerance class.
| Designation | Principal dimensions | Basic load ratings | Basic load ratings | Attainable speeds | ||||||
| dynamic | static | dynamic | static | Grease Lubrication | Oil-air lubrication | |||||
| d(mm) | D(mm) | H(mm) | C(KN) | C0(KN) | C(KN) | C0(KN) | (r/min) | (r/min) | ||
| NRT 80 B | 80 | 146 | 35 | 55 | 102 | 37.5 | 200 | 350 | 700 | 200 |
| NRT 100 B | 100 | 185 | 38 | 58.3 | 116 | 68 | 400 | 280 | 560 | 260 |
| NRT 120 B | 120 | 210 | 40 | 64.4 | 140 | 72 | 450 | 230 | 460 | 315 |
| NRT 150 B | 150 | 240 | 40 | 67.1 | 160 | 75 | 490 | 210 | 420 | 350 |
| NRT 180 B | 180 | 280 | 43 | 89.7 | 236 | 80 | 560 | 190 | 380 | 400 |
| NRT 200 B | 200 | 300 | 45 | 93.5 | 270 | 85 | 630 | 170 | 340 | 500 |
| NRT 260 B | 260 | 385 | 55 | 108 | 355 | 95 | 780 | 130 | 260 | 630 |
| NRT 325 B | 325 | 450 | 60 | 134 | 450 | 153 | 1 660 | 110 | 220 | 700 |
| NRT 395 B | 395 | 525 | 65 | 147 | 530 | 166 | 1 960 | 90 | 180 | 800 |
| NRT 460 A | 460 | 600 | 70 | 201 | 765 | 180 | 2 240 | 80 | 160 | 1 000 |
| NRT 650 A | 650 | 870 | 122 | 413 | 1 600 | 365 | 5 000 | 55 | 110 | 1 450 |
| NRT 850 A | 850 | 1 095 | 124 | 473 | 2 120 | 415 | 6 400 | 40 | 80 | 1 800 |
