The NNTR Roller have an outer ring of great thickness necessary to guarantee the mechanical resistance suitable for limiting deformations under load to a minimum and withstanding shocks in the best possible way. The rounded external profile allows to compensate for possible misalignments present in the parts surrounding the bearing, to reduce the Hertzian contact pressure and therefore to guarantee less wear and a longer life of the counter track. The full complement of rollers execution allows these support rollers to withstand high loads, while keeping the overall dimensions reduced. The presence of integrated and grinded flanges in the outer ring allow these bearings to be used in applications where there is the presence of axial loads. They are mainly used on camshaft, as pressure rollers and as wheels in conveyors
CODE | Weight | Dimensions (mm) | Load Rating | Fatigue limit load | RPM (2) | ||||||||||
d | D | B | C | D1 | d2 | d3 | r1 | r2 | n (1) | din. | stat. | ||||
CW | C0W | PUW | nD Grease | ||||||||||||
g | h10 | min | min | n° | KN | KN | KN | min-1 | |||||||
NNTR 50x130x65-2ZL | 5,2 | 50 | 130 | 65 | 63 | 80 | 63 | 6 | 2 | 3 | 3 | 226 | 285 | 37 | 1.100 |
NNTR 55x140x70-2ZL | 6,4 | 55 | 140 | 70 | 68 | 91 | 73 | 4 | 2 | 3 | 3 | 275 | 365 | 44,5 | 850 |
NNTR 60x150x75-2ZL | 7,8 | 60 | 150 | 75 | 73 | 97 | 78 | 4 | 2 | 3 | 3 | 310 | 420 | 53 | 800 |
NNTR 65x160x75-2ZL | 8,8 | 65 | 160 | 75 | 73 | 103 | 82 | 5 | 2 | 3 | 3 | 335 | 445 | 56 | 700 |
NNTR 70x180x85-2ZL | 13 | 70 | 180 | 85 | 83 | 115 | 92 | 5 | 2 | 3 | 3 | 430 | 590 | 75 | 600 |
NNTR 80x200x90-2ZL | 16,8 | 80 | 200 | 90 | 88 | 127 | 102 | 5 | 2 | 4 | 3 | 510 | 700 | 87 | 500 |
NNTR 90x220x100-2ZL | 22,5 | 90 | 220 | 100 | 98 | 146 | 119 | 5 | 2,5 | 4 | 3 | 630 | 910 | 104 | 400 |
NNTR 100x240x105-2ZL | 28 | 100 | 240 | 105 | 103 | 160 | 132 | 6 | 2,5 | 4 | 6 | 720 | 1080 | 118 | 340 |
NNTR 110x260x135-2ZL | 35,6 | 110 | 260 | 115 | 113 | 174 | 143 | 6 | 2,5 | 4 | 6 | 860 | 1310 | 143 | 300 |
NNTR 130x310x146-2ZL | 65,2 | 130 | 310 | 146 | 144 | 204 | 165 | 8 | 3 | 5 | 6 | 1290 | 2010 | 216 | 240 |
Bearing with lip seal (suffix .2RS); Admissible operating temperature -30°C up to 120°C
(1) N° of holes for internal lubrication
(2) N° of RPM with continous functioning and for grease lubrication