Thrust-radial cylindrical roller bearings
Ultra-precision thrust-radial cylindrical roller bearings are usually used to support multi-axis heads of rotating tables, indexing heads and machining centers. Manufacture of ultra-precision thrust-radial cylindrical roller bearings with shaft diameters ranging from 80 to 850 mm. The internal design of these bearings, combined with the close tolerance manufacturing process, makes the radial runout of these bearings better than the P4 tolerance level, while the axial runout is close to the P4 tolerance level.
| Designation | Basic dimensions | Basic static load rating | Basic axial load | Achievable speed | Rotary table | |||||
| dynamic | static | dynamic | static | Grease lubrication | Oil lubrication | Guideline diameter | ||||
| d[mm] | D[mm] | H[mm] | C[kN] | C0[kN] | C[kN] | C0[kN] | [r/min] | [r/min] | [mm] | |
| 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 580 A | 580 | 750 | 90 | 229 | 965 | 285 | 3 550 | 60 | 120 | 1 250 |
| 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 |
For more information please contact:
Email: molly@sunrises-group.com,
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