track rollers with 120° V groove profiled outer ring, double row, shields on both side
| dS | 30 mm | Linear shaft diameter |
| d | 20 mm | Bore diameter |
| D | 57 mm | Outside diameter |
| B | 22 mm | Inner ring width |
| C | 22 mm | Outer ring width |
| AT | 41 mm | Linear shaft center to bore center |
| a | 120 ° | Contact angle |
| r | 0.6 mm | Minimum chamfer |
| Cr | 16910 N | Effective dynamic load rating as track roller (radial) |
| C0r | 9200 N | Effective static load rating as track roller (radial) |
| Pu | 270 N | Fatigue load limit |
| Fr | 47000 N | Maximum dynamic load rating as track roller (radial) |
| F0r | 86000 N | Maximum static load rating as track roller (radial) |
| ≈m | 0.29 kg | Weight |
| 52100 (100Cr6) chrome steel | Roller material | |
| Nylon 66 | Cage material | |
| Shields | Sealsing Solution | |
| SPCC | Shield/Seal Material | |
| Kyodo Yushi Multemp SRL | Grease | |
| -30ºC to +120ºC | Temperature range ºC | |
| -22ºF to +250ºF | Temperature range ºF |
| P6 (ABEC-3) | Tolerances | |
| 0.02 mm | Radial runout | |
| CN (Normal) | Internal clearance |
| Compliant | RoHS | |
| Compliant | REACH |
| NIKO |
| RV204/20.57-30 |
