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Yoke Type Track Roller Bearing
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| Place of Origin | CHINA |
| Brand Name | SUMA |
| Certification | ISO SGS |
| Model Number | RSTO12 |
RSTO10 RSTO12 Yoke Type Track Rollers without Inner Race
Features of Yoke Type Track Rollers
Support rollers, without flange rings, without an inner ring .
The support roller RSTO type does not have an inner ring, and the support roller can run directly on the hardened shaft as the raceway.
The STO type has an inner ring, and the inner and outer rings and their matching needle roller cage assemblies can be installed separately.
Since RSTO and STO type support rollers do not have ribs and end face retaining rings, they must be axially guided during installation, and their guiding surfaces must be at least precision machined.
Dimensions and Capacities of Yoke Type Track Rollers
| Dimensions | Mass | Designation | Basic Load Rating | Fatigue | Max Radial Force | Limiting Speed |
|||||||
| D | C | D1 | FW | E | r | C | C0 | Pu | Fr | F0r | |||
| mm | kg | kN | kN | kN | r/min | ||||||||
| 16 | 7,8 | – | 7 | 10 | 0,3 | 0,008 | RSTO 5 TN | 2,51 | 2,5 | 0,27 | 3,55 | 5 | 8000 |
| 19 | 9,8 | – | 10 | 13 | 0,3 | 0,012 | RSTO 6 TN | 3,74 | 4,5 | 0,5 | 4,25 | 6,1 | 7000 |
| 11,8 | 16 | 10 | – | 0,3 | 0,018 | RNA 22/6.2RS | 4,02 | 3,65 | 0,425 | 2,55 | 3,6 | 7000 | |
| 24 | 9,8 | – | 12 | 15 | 0,3 | 0,021 | RSTO 8 TN | 4,13 | 5,4 | 0,6 | 7,5 | 10,8 | 7000 |
| 11,8 | 18 | 12 | – | 0,3 | 0,029 | RNA 22/8.2RS | 4,68 | 4,55 | 0,54 | 5,3 | 7,5 | 6700 | |
| 30 | 11,8 | – | 14 | 20 | 0,3 | 0,042 | RSTO 10 | 8,25 | 8,8 | 1,04 | 8,5 | 12,2 | 6000 |
| 13,8 | 20 | 14 | – | 0,6 | 0,052 | RNA2200.2RS | 6,6 | 7,5 | 0,88 | 12 | 17,3 | 6300 | |
| 32 | 11,8 | – | 16 | 22 | 0,3 | 0,049 | RSTO 12 | 8,8 | 9,8 | 1,18 | 8,3 | 12 | 5600 |
| 13,8 | 22 | 16 | – | 0,6 | 0,057 | RNA2201.2RS | 7,04 | 8,5 | 1 | 11,6 | 16,6 | 6000 | |
| 35 | 11,8 | – | 20 | 26 | 0,3 | 0,05 | RSTO 15 | 9,13 | 10,6 | 1,27 | 7,1 | 10 | 5000 |
| 13,8 | 26 | 20 | – | 0,6 | 0,06 | RNA2202.2RS | 7,48 | 9,3 | 1,12 | 9,5 | 13,7 | 5000 | |
| 40 | 15,8 | 28 | 22 | – | 1 | 0,094 | RNA2203.2RS | 9,52 | 13,2 | 1,6 | 15,3 | 22 | 4500 |
| 15,8 | – | 22 | 29 | 0,3 | 0,088 | RSTO 17 | 14,2 | 17,6 | 2,08 | 12 | 17,3 | 4500 | |
| 47 | 15,8 | – | 25 | 32 | 0,3 | 0,13 | RSTO 20 | 16,1 | 21,2 | 2,5 | 18,6 | 26,5 | 4000 |
| 17,8 | 33 | 25 | – | 1 | 0,15 | RNA2204.2RS | 16,1 | 18 | 2,16 | 17,6 | 25,5 | 4000 | |
| 52 | 15,8 | – | 30 | 37 | 0,3 | 0,15 | RSTO 25 | 16,5 | 22,8 | 2,7 | 18 | 26 | 3400 |
| 17,8 | 38 | 30 | – | 1 | 0,18 | RNA2205.2RS | 16,8 | 20 | 2,4 | 17,3 | 24,5 | 3400 | |
| 62 | 19,8 | 43 | 35 | – | 1 | 0,28 | RNA2206.2RS | 17,9 | 25,5 | 3,05 | 28,5 | 40,5 | 2800 |
| 19,8 | – | 38 | 46 | 0,6 | 0,26 | RSTO 30 | 22,9 | 34,5 | 4,25 | 23,6 | 33,5 | 2600 | |
| 72 | 19,8 | – | 42 | 50 | 0,6 | 0,38 | RSTO 35 | 24,6 | 39 | 4,8 | 36 | 51 | 2200 |
| 22,7 | 50 | 42 | – | 1,1 | 0,43 | RNA2207.2RS | 22,4 | 35,5 | 4,3 | 38 | 54 | 2200 | |
| 80 | 19,8 | – | 50 | 58 | 1 | 0,42 | RSTO 40 | 23,8 | 39 | 4,75 | 34,5 | 49 | 1900 |
| 22,7 | 57 | 48 | – | 1,1 | 0,53 | RNA2208.2RS | 27,5 | 40,5 | 5 | 35,5 | 51 | 1900 | |
| 85 | 19,8 | – | 55 | 63 | 1 | 0,45 | RSTO 45 | 25,1 | 43 | 5,3 | 34,5 | 50 | 1700 |
| 90 | 19,8 | – | 60 | 68 | 1 | 0,48 | RSTO 50 | 26 | 45,5 | 5,7 | 34,5 | 50 | 1600 |
PACKAGE of Yoke Type Track Rollers
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