Torque Limiters TT(01) Types Specifications
TT (01) Types
[Specifications]
Type | Size | Set torque value [N・m] | Misalignment | Max. rotation speed [min-1] | Moment of inertia [kg・m2] | Mass [kg] |
Spring color | Parallel | Angular |
Colorless | Blue | Red | Yellow | White | Gray | Green | Brown* | Colorless* | [mm] | [°] |
TT-1X-01 | 1X | 0.2 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 0.2 | 0.5 | 1800 | 0.06×10-3 | 0.3 |
---|
TT-2-01 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 0.2 | 0.5 | 1800 | 0.26×10-3 | 0.7 |
---|
TT-2X-01 | 2X | 2 | 3 | 5 | 8 | 10 | 12 | 15 | 18 | 20 | 0.2 | 0.5 | 1800 | 0.52×10-3 | 1.0 |
---|
TT-3-01 | 3 | 5 | 8 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 0.2 | 0.5 | 1800 | 1.23×10-3 | 1.5 |
---|
TT-3X-01 | 3X | 10 | 16 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 0.2 | 0.5 | 1800 | 1.94×10-3 | 2.7 |
---|
TT-4X-01 | 4X | 20 | 30 | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 0.2 | 0.5 | 500 | 14.8×10-3 | 6.3 |
---|
*The above set torque values listed are measured at a speed of 1500 min-1.
* Set torque values vary by ± 20%.
*Use components with larger dimensions for applications with the torque marked by [*] requiring enhanced reliability.
[Dimensions]
Unit [mm]
Size | K1 | B | C | C1 | D | E | F | G | H | I | J | L | N | M1 | M2 |
1X | 12.5 | 20 | 30 | 23 | 42 | 15 | 30 | 5 | 25 | 22 | 3 | 50 | 6 | 2-M4 | 2-M4 |
---|
2 | 16.5 | 24.5 | 41.5 | 32.5 | 55 | 20 | 35 | 11 | 35 | 32 | 5 | 66 | 7 | 2-M5 | 2-M5 |
---|
2X | 20.5 | 31 | 45 | 34 | 65 | 25 | 40 | 11 | 40 | 38 | 5 | 76 | 8 | 2-M5 | 2-M5 |
---|
3 | 25.5 | 37.5 | 53.5 | 40 | 75 | 30 | 50 | 11 | 45 | 45 | 5 | 91 | 10 | 2-M6 | 2-M6 |
---|
3X | 25.5 | 36 | 85 | 41 | 75 | 30 | 80 | 11 | 45 | 45 | 6 | 121 | 10 | 2-M6 | 2-M6 |
---|
4X | 28.5 | 46 | 95 | 60 | 120 | 35 | 90 | 16 | 80 | 80 | 8 | 141 | 12 | 2-M10 | 2-M10 |
---|
*For size 4X with φ K at 30 mm or more, shape is straight and there are no K1/C1 dimensions.
[Torque coefficient]

[Standard Bore Diameterφ A]
Model | Bore DrillingH Standards | Nominal bore Standards | Standard bore diameter A [mm] |
8 | 10 | 11 | 12 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | 48 | 50 |
TT-1X-01 | Old JIS standards (E9) | Blank | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | |
---|
JIS standards (H9) | H | | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | |
Motor standards | N | | | | | ● | | | | | | | | | | | | | | | | | | |
TT-2-01 | Old JIS standards (E9) | Blank | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | |
---|
JIS standards (H9) | H | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | |
Motor standards | N | | | | | ● | | | | ● | | | | | | | | | | | | | | |
TT-2X-01 | Old JIS standards (E9) | Blank | | | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | |
---|
JIS standards (H9) | H | | | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | | | | |
Motor standards | N | | | | | ● | | | | ● | | | ● | | | | | | | | | | | |
TT-3-01 | Old JIS standards (E9) | Blank | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
---|
JIS standards (H9) | H | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
Motor standards | N | | | | | | | | | ● | | | ● | | ● | | | | | | | | | |
TT-3X-01 | Old JIS standards (E9) | Blank | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
---|
JIS standards (H9) | H | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | | | | | | | | |
Motor standards | N | | | | | | | | | ● | | | ● | | ● | | | | | | | | | |
TT-4X-01 | Old JIS standards (E9) | Blank | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
---|
JIS standards (H9) | H | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
Motor standards | N | | | | | | | | | ● | | | ● | | ● | | | | ● | | ● | | ● | |
* There is no keyway for bore diameter ø8 mm.
[Standard Bore Diameterφ K]
Model | Bore Drilling Standards | Nominal bore diameter | Standard bore diameter K [mm] |
8 | 10 | 11 | 12 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 38 | 40 | 42 | 45 | 48 | 50 |
TT-1X-01 | Old JIS standards (E9) | Blank | ● | ● | ● | ● | | | | | | | | | | | | | | | | | | | |
---|
JIS standards (H9) | H | | ● | ● | ● | | | | | | | | | | | | | | | | | | | |
Motor standards | N | | | | | | | | | | | | | | | | | | | | | | | |
TT-2-01 | Old JIS standards (E9) | Blank | | | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | |
---|
JIS standards (H9) | H | | | ● | ● | ● | ● | ● | | | | | | | | | | | | | | | | |
Motor standards | N | | | | | ● | | | | | | | | | | | | | | | | | | |
TT-2X-01 | Old JIS standards (E9) | Blank | | | | | ● | ● | ● | ● | ● | ● | | | | | | | | | | | | | |
---|
JIS standards (H9) | H | | | | | ● | ● | ● | ● | ● | | | | | | | | | | | | | | |
Motor standards | N | | | | | ● | | | | ● | | | | | | | | | | | | | | |
TT-3-01 | Old JIS standards (E9) | Blank | | | | | | | | ● | ● | ● | ● | ● | ● | | | | | | | | | | |
---|
JIS standards (H9) | H | | | | | | | | ● | ● | ● | ● | ● | ● | | | | | | | | | | |
Motor standards | N | | | | | | | | | ● | | | ● | | | | | | | | | | | |
TT-3X-01 | Old JIS standards (E9) | Blank | | | | | | | | ● | ● | ● | ● | ● | ● | | | | | | | | | | |
---|
JIS standards (H9) | H | | | | | | | | ● | ● | ● | ● | ● | ● | | | | | | | | | | |
Motor standards | N | | | | | | | | | ● | | | ● | | | | | | | | | | | |
TT-4X-01 | Old JIS standards (E9) | Blank | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | |
---|
JIS standards (H9) | H | | | | | | | | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | |
Motor standards | N | | | | | | | | | ● | | ● | | ● | | | | ● | | ● | | | | |
* There is no keyway for bore diameter ø8 mm.
Options of Torque Limiters TT(01) Types
Optional Signal Pin
Unattended or remotely controlled machines and equipment require equipment that detects an overload and automatically switches off the power or sounds a warning alarm.
An overload can be detected by connecting the signal pin to the torque tender.
When an overload is detected, the input side and the output side are disconnected and the cam mechanism of the torque tender hub pushes the signal pin out in the radial direction. This can be used to switch off the power or sound a warning alarm.
Be sure to use the housing as the input side.
The standard product cannot be modified to connect the signal pin. If you need to
connect the signal pin, add "-P" to the end of the model when you order the product.
Unit (mm)
Size |
M |
Y |
R |
N |
1X |
24 |
1.5 |
6.5 |
5.5 |
2 |
29 |
2.5 |
5 |
4.5 |
2X |
36 |
2.5 |
5 |
4.5 |
3 |
43 |
2.5 |
5 |
4.5 |
3X |
42 |
2.5 |
5 |
4.5 |
4X |
55 |
2.5 |
5 |
2 |
Standard Hole-Drilling Standards
*Set screws are included with the product.
*For standard dimensions for bore drilling other than those given here, contact Miki Pulley.
(A bore may not be able to be drilled for some hub sizes.)
Unit [mm]
Models compliant with the old JIS standard (class 2) JIS B 1301 1959 |
Models compliant with the new JIS standard (H9) JIS B 1301 1996 |
Models compliant with the motor standard JIS C 4210 2001 |
Nominal bore diameter |
Bore diameter [oA/oK] |
Keyway width [W] |
Keyway height [T] |
Nominal bore diameter |
Bore diameter [oA/oK] |
Keyway width [W] |
Keyway height [T] |
Nominal bore diameter |
Bore diameter [oA/oK] |
Keyway width [W] |
Keyway height [T] |
|
Tolerance H7 |
Tolerance E9 |
- |
|
Tolerance H7 |
Tolerance H9 |
- |
|
Tolerance G7 |
|
- |
8 |
8+0.0150 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
10 |
10+0.0150 |
4+0.050+0.020 |
11.5+0.50 |
10H |
10+0.0150 |
4+0.0300 |
11.8+0.50 |
- |
- |
- |
- |
11 |
11+0.0180 |
4+0.050+0.020 |
12.5+0.50 |
11H |
11+0.0180 |
4+0.0300 |
12.8+0.50 |
- |
- |
- |
- |
12 |
12+0.0180 |
4+0.050+0.020 |
13.5+0.50 |
12H |
12+0.0180 |
4+0.0300 |
13.8+0.50 |
- |
- |
- |
- |
14 |
14+0.0180 |
5+0.050+0.020 |
16.0+0.50 |
14H |
14+0.0180 |
5+0.0300 |
16.3+0.50 |
14N |
14+0.024+0.006 |
5+0.0300 |
16.0+0.50 |
15 |
15+0.0180 |
5+0.050+0.020 |
17.0+0.50 |
15H |
15+0.0180 |
5+0.0300 |
17.3+0.50 |
- |
- |
- |
- |
16 |
16+0.0180 |
5+0.050+0.020 |
18.0+0.50 |
16H |
16+0.0180 |
5+0.0300 |
18.3+0.50 |
- |
- |
- |
- |
18 |
18+0.0180 |
5+0.050+0.020 |
20.0+0.50 |
18H |
18+0.0180 |
6+0.0300 |
20.8+0.50 |
- |
- |
- |
- |
19 |
19+0.0210 |
5+0.050+0.020 |
21.0+0.50 |
19H |
19+0.0210 |
6+0.0300 |
21.8+0.50 |
19N |
19+0.028+0.007 |
6+0.0300 |
21.5+0.50 |
20 |
20+0.0210 |
5+0.050+0.020 |
22.0+0.50 |
20H |
20+0.0210 |
6+0.0300 |
22.8+0.50 |
- |
- |
- |
- |
22 |
22+0.0210 |
7+0.061+0.025 |
25.0+0.50 |
22H |
22+0.0210 |
6+0.0300 |
24.8+0.50 |
- |
- |
- |
- |
24 |
24+0.0210 |
7+0.061+0.025 |
27.0+0.50 |
24H |
24+0.0210 |
8+0.0360 |
27.3+0.50 |
24N |
24+0.028+0.007 |
8+0.0360 |
27.0+0.50 |
25 |
25+0.0210 |
7+0.061+0.025 |
28.0+0.50 |
25H |
25+0.0210 |
8+0.0360 |
28.3+0.50 |
- |
- |
- |
- |
28 |
28+0.0210 |
7+0.061+0.025 |
31.0+0.50 |
28H |
28+0.0210 |
8+0.0360 |
31.3+0.50 |
28N |
28+0.028+0.007 |
8+0.0360 |
31.0+0.50 |
30 |
30+0.0210 |
7+0.061+0.025 |
33.0+0.50 |
30H |
30+0.0210 |
8+0.0360 |
33.3+0.50 |
- |
- |
- |
- |
32 |
32+0.0250 |
10+0.061+0.025 |
35.5+0.50 |
32H |
32+0.0250 |
10+0.0360 |
35.3+0.50 |
- |
- |
- |
- |
35 |
35+0.0250 |
10+0.061+0.025 |
38.5+0.50 |
35H |
35+0.0250 |
10+0.0360 |
38.3+0.50 |
- |
- |
- |
- |
38 |
38+0.0250 |
10+0.061+0.025 |
41.5+0.50 |
38H |
38+0.0250 |
10+0.0360 |
41.3+0.50 |
38N |
38+0.034+0.009 |
10+0.0360 |
41.0+0.50 |
40 |
40+0.0250 |
10+0.061+0.025 |
43.5+0.50 |
40H |
40+0.0250 |
12+0.0430 |
43.3+0.50 |
- |
- |
- |
- |
42 |
42+0.0250 |
10+0.061+0.025 |
45.5+0.50 |
42H |
42+0.0250 |
12+0.0430 |
45.3+0.50 |
42N |
42+0.034+0.009 |
12+0.0430 |
45.0+0.50 |
45 |
45+0.0250 |
12+0.075+0.032 |
48.5+0.50 |
45H |
45+0.0250 |
14+0.0430 |
48.8+0.50 |
- |
- |
- |
- |
48 |
48+0.0250 |
12+0.075+0.032 |
51.5+0.50 |
48H |
48+0.0250 |
14+0.0430 |
51.8+0.50 |
48N |
48+0.034+0.009 |
14+0.0430 |
51.5+0.50 |
50 |
50+0.0250 |
12+0.075+0.032 |
53.5+0.50 |
50H |
50+0.0250 |
14+0.0430 |
53.8+0.50 |
- |
- |
- |
- |