Overloads are detected accurately and the drive key removed from the groove to cut off input and output. Once the overload is resolved, operation can continue automatically at the same torque from the same indexing position.Torque is set using a built-in torque spring, so there is no troublesome fine-tuning. The TT-03 type is used for wrapping. The shaft is inserted into the hub, and the pulley, gears and the like are set in the housing.
TT-□-03 Types
[Specifications]
| Type | Size | Set torque value ［N・m］ | Max. rotation speed ［min-1］ | Moment of inertia ［kg・m2］ | Mass ［kg］ | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spring color | |||||||||||||
| Colorless | Blue | Red | Yellow | White | Gray | Green | Brown* | Colorless* | |||||
| TT-1X-03 | 1X | 0.2 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 1800 | 0.09×10-3 | 0.4 |
| TT-2-03 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 1800 | 0.31×10-3 | 0.8 |
| TT-2X-03 | 2X | 2 | 3 | 5 | 8 | 10 | 12 | 15 | 18 | 20 | 1800 | 0.66×10-3 | 1.1 |
| TT-3-03 | 3 | 5 | 8 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 1800 | 1.59×10-3 | 1.7 |
| TT-3X-03 | 3X | 10 | 16 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 1800 | 2.43×10-3 | 3.0 |
| TT-4X-03 | 4X | 20 | 30 | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 500 | 15.8×10-3 | 6.5 |
*The above set torque values listed are measured at a speed of 1500 min-1.
*Use components with larger dimensions for applications with the torque marked by [*] requiring enhanced reliability.
[Dimensions]
Unit [mm]
| Size | Shaft bore dimensions in compliance with the new JIS standards K |
|---|---|
| 1X | 10, 11, 12 |
| 2 | 11, 12, 14, 15, 16 |
| 2X | 14, 15, 16, 18, 19 |
| 3 | 18, 19, 20, 22, 24, 25 |
| 3X | 18, 19, 20, 22, 24, 25 |
| 4X | 19, 20, 22, 24, 25, 28, 30, 32, 35, 38, 40, 42, 45 |
Unit [mm]
| Size | Shaft bore dimensions in compliance with the old JIS standards K |
|---|---|
| 1X | 8, 10, 11, 12 |
| 2 | 11, 12, 14, 15, 16 |
| 2X | 14, 15, 16, 18, 19, 20 |
| 3 | 18, 19, 20, 22, 24, 25 |
| 3X | 18, 19, 20, 22, 24, 25 |
| 4X | 19, 20, 22, 24, 25, 28, 30, 32, 35, 38, 40, 42, 45 |
* There is no keyway for bore diameter o8 mm.
* See below for details on bore drilling standards.
Unit [mm]
| Size | K1 | B | D | E | F | H | N | L | P | S | T | U | M |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1X | 12.5 | 34 | 42 | 20 | 35 | 30 | 25 | 55 | 16 | 14 | 2.5 | 4 | 2-M4 |
| 2 | 16.5 | 38 | 55 | 25 | 40 | 40 | 30 | 65 | 20 | 18 | 3 | 5 | 2-M5 |
| 2X | 20.5 | 40 | 65 | 25 | 45 | 45 | 31 | 70 | 20 | 18 | 3 | 5 | 2-M5 |
| 3 | 25.5 | 52.5 | 75 | 35 | 55 | 60 | 45 | 90 | 30 | 28 | 4 | 7 | 2-M6 |
| 3X | 25.5 | 75 | 75 | 35 | 90 | 60 | 45 | 125 | 30 | 28 | 4 | 7 | 2-M6 |
| 4X | 46 | 100 | 120 | 50 | 90 | 85 | 57 | 140 | 45 | 40 | 4.5 | 12 | 2-M8 |
* The outer diameter key (old JIS class 2) and stop ring are included accessories.
[Standard Hole-drilling Standards]
| Models compliant with the old JIS standards (Class 2) | Models compliant with the new JIS standards | Models compliant with the new motor standards | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal bore diameter | Bore diameter øA/øK | Keyway width W | Keyway height T | Nominal bore diameter | Bore diameter øA/øK | Keyway width W | Keyway height T | Nominal bore diameter | Bore diameter øA/øK | Keyway width W | Keyway height T |
| Tolerance | H7 | E9 | +0.50 | Tolerance | H7 | H9 | +0.50 | Tolerance | G7 | H9 | +0.50 |
| 8 | 8+0.0150 | - | - | - | - | - | - | - | - | - | - |
| 10 | 10+0.0150 | 4+0.050+0.020 | 11.5 | 10H | 10+0.0150 | 4+0.0300 | 11.8 | - | - | - | - |
| 11 | 11+0.0180 | 4+0.050+0.020 | 12.5 | 11H | 11+0.0180 | 4+0.0300 | 12.8 | - | - | - | - |
| 12 | 12+0.0180 | 4+0.050+0.020 | 13.5 | 12H | 12+0.0180 | 4+0.0300 | 13.8 | - | - | - | - |
| 14 | 14+0.0180 | 5+0.050+0.020 | 16.0 | 14H | 14+0.0180 | 5+0.0300 | 16.3 | 14N | 14+0.024+0.006 | 5+0.0300 | 16.0 |
| 15 | 15+0.0180 | 5+0.050+0.020 | 17.0 | 15H | 15+0.0180 | 5+0.0300 | 17.3 | - | - | - | - |
| 16 | 16+0.0180 | 5+0.050+0.020 | 18.0 | 16H | 16+0.0180 | 5+0.0300 | 18.3 | - | - | - | - |
| 18 | 18+0.0180 | 5+0.050+0.020 | 20.0 | 18H | 18+0.0180 | 6+0.0300 | 20.8 | - | - | - | - |
| 19 | 19+0.0210 | 5+0.050+0.020 | 21.0 | 19H | 19+0.0210 | 6+0.0300 | 21.8 | 19N | 19+0.028+0.007 | 6+0.0300 | 21.5 |
| 20 | 20+0.0210 | 5+0.050+0.020 | 22.0 | 20H | 20+0.0210 | 6+0.0300 | 22.8 | - | - | - | - |
| 22 | 22+0.0210 | 7+0.061+0.025 | 25.0 | 22H | 22+0.0210 | 6+0.0300 | 24.8 | - | - | - | - |
| 24 | 24+0.0210 | 7+0.061+0.025 | 27.0 | 24H | 24+0.0210 | 8+0.0360 | 27.3 | 24N | 24+0.028+0.007 | 8+0.0360 | 27.0 |
| 25 | 25+0.0210 | 7+0.061+0.025 | 28.0 | 25H | 25+0.0210 | 8+0.0360 | 28.3 | - | - | - | - |
| 28 | 28+0.0210 | 7+0.061+0.025 | 31.0 | 28H | 28+0.0210 | 8+0.0360 | 31.3 | 28N | 28+0.028+0.007 | 8+0.0360 | 31.0 |
| 30 | 30+0.0210 | 7+0.061+0.025 | 33.0 | 30H | 30+0.0210 | 8+0.0360 | 33.3 | - | - | - | - |
| 32 | 32+0.0250 | 10+0.061+0.025 | 35.5 | 32H | 32+0.0250 | 10+0.0360 | 35.3 | - | - | - | - |
| 35 | 35+0.0250 | 10+0.061+0.025 | 38.5 | 35H | 35+0.0250 | 10+0.0360 | 38.3 | - | - | - | - |
| 38 | 38+0.0250 | 10+0.061+0.025 | 41.5 | 38H | 38+0.0250 | 10+0.0360 | 41.3 | 38N | 38+0.034+0.009 | 10+0.0360 | 41.0 |
| 40 | 40+0.0250 | 10+0.061+0.025 | 43.5 | 40H | 40+0.0250 | 12+0.0430 | 43.3 | - | - | - | - |
| 42 | 42+0.0250 | 10+0.061+0.025 | 45.5 | 42H | 42+0.0250 | 12+0.0430 | 45.3 | 42N | 42+0.034+0.009 | 12+0.0430 | 45.0 |
| 45 | 45+0.0250 | 12+0.075+0.032 | 48.5 | 45H | 45+0.0250 | 14+0.0430 | 48.8 | - | - | - | - |
| 48 | 48+0.0250 | 12+0.075+0.032 | 51.5 | 48H | 48+0.0250 | 14+0.0430 | 51.8 | 48N | 48+0.034+0.009 | 14+0.0430 | 51.5 |
| 50 | 50+0.0250 | 12+0.075+0.032 | 53.5 | 50H | 50+0.0250 | 14+0.0430 | 53.8 | - | - | - | - |
