NNTR55X140X70-2ZL
Yoke type track roller
Yoke type track roller NNTR..-2ZL, CRB, full complement roller set, two-row, with inner ring, 3 ribs on outer ring, not pallet changer
Replaces
NNTR 55X140X70.2ZL
Description
Metric
Imperial
Main Dimensions & Performance Data
| d | 55 mm | Bore diameter |
| D | 140 mm | Outside diameter |
| B | 70 mm | Width, inner ring |
| Cr w | 219,000 N | Basic dynamic load rating, radial |
| C0r w | 320,000 N | Basic static load rating, radial |
| Cur w | 48,000 N | Fatigue load limit, radial |
| nD G | 850 1/min | Speed on permanent grease lubrication |
| F0r per | 320,000 N | Permissible static load, radial |
| Fr per | 280,000 N | Permissible dynamic load outer ring, radial |
| ≈m | 6.29 kg | Weight |
Mounting dimensions
| d2 | 73 mm | Stop diameter of thrust washer |
| D1 | 91 mm | Mounting dimension |
| d3 | 4 mm | Diameter lubrication hole |
| R | 10,000 mm | Radius of outer ring outside profile |
| 3 | Number of lubrication holes |
Dimensions
| C | 68 mm | Width, outer ring |
| rmin | 3 mm | Minimum chamfer dimension |
| r1 min | 2 mm | Minimum chamfer dimension |
Your current product variant
| Sealing | 2ZL | Sealing shields on both sides |
Characteristics
