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SKF track runner bearing data
| Designation | Dimensions | Basic load ratings | Fatigue load limit | Maximum radial loads | Limiting speed | Mass | |||||
| dynamic | static | dynamic | static | ||||||||
| D | d | B | C | C | C0 | Pu | Fr | F0r | |||
| - | mm | mm | mm | mm | kN | kN | kN | kN | kN | r/min | kg |
| NNTR 50x130x65.2ZL | 130 | 50 | 63 | 179 | 232 | 31 | 224 | 320 | 750 | 5,20 | |
| NNTR 55x140x70.2ZL | 140 | 55 | 68 | 209 | 275 | 37,5 | 224 | 320 | 700 | 6,40 | |
| NNTR 60x150x75.2ZL | 150 | 60 | 73 | 238 | 320 | 42,5 | 265 | 375 | 670 | 7,80 | |
| NNTR 65x160x75.2ZL | 160 | 65 | 73 | 255 | 345 | 46,5 | 285 | 405 | 600 | 8,80 | |
| NNTR 70x180x85.2ZL | 180 | 70 | 83 | 330 | 455 | 61 | 375 | 540 | 560 | 13,0 | |
| NNTR 80x200x90.2ZL | 200 | 80 | 88 | 391 | 540 | 71 | 455 | 640 | 500 | 17,0 | |
| NNTR 90x220x100.2ZL | 220 | 90 | 98 | 468 | 670 | 83 | 480 | 680 | 430 | 22,5 | |
| NNTR 100x240x105.2ZL | 240 | 100 | 103 | 528 | 780 | 93 | 550 | 780 | 380 | 28,0 | |
| NNTR 110x260x115.2ZL | 260 | 110 | 113 | 627 | 930 | 112 | 655 | 950 | 360 | 35,5 | |
| NNTR 120x290x135.2ZL | 290 | 120 | 133 | 825 | 1270 | 143 | 900 | 1290 | 320 | 53,0 | |
| NNTR 130x310x146.2ZL | 310 | 130 | 144 | 952 | 1460 | 166 | 1040 | 1500 | 300 | 65 | |
SKF track runnerbearing
SKF track runner bearing have an internal design very similar to that of a needle or cylindrical roller bearing.
They are characterized by a thick-walled outer ring that enables them to accommodate shock loads
while reducing distortion and bending stresses. The outer ring running surface is crowned as standard.
However, support rollers with a cylindrical (flat) running surface are available for certain applications.
These pre-greased, ready-to-mount units are suitable for all types of cam drives, tracks and conveyor systems.
SKF track runner bearing picture
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