+7(495) 407-01-02
Made from high quality aluminum alloy. Sizes from 25 to 130. The gear ratios from 7.5 to 100.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Available on request.
Precision planetary gearboxes used in modern industrial technology.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Available on customer request.
The accuracy of 2-5 arc. min. The gear ratio of 1: 1000. It can be fitted with a variety of servo motors.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Available on customer request.
Backlash-free ball gearboxes with high precision positioning.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ Available on customer request.
Trapezoidal screws and nuts from a warehouse in Moscow. Material: Steel C15 (1.0401); Bronze RG7 GC-CuSn7ZnPb (DIN 2.1090).
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ TR20x4x3000R,
TR24x5x3000R, TR30x6x3000R,
TR36x6x3000R, TR40x7x3000R.
Гайки: BR12x3, BR16x4, BR20x4, BR24x5,
BR30x6, BR36x6, BR40x7.
25.09.2014 | We invite you to visit our stand at the exhibition "Mashex-2014"!
We invite you to visit our stand №C261, hall №3 at the 17th international exhibition of equipment and technologies of metalworking and working of composite materials "Mashex-2014", which will be organized from 28 to 31 October in the exhibition center "Crocus Expo", pavilion №1, Moscow, Russia. |
24.09.2014 | We invite you to visit our stand at the exhibition "Stankostroenie-2014"!
We invite you to visit our stand №В222 , pavilion №1, hall №2 at the international specialized exhibition "Stankostroenie-2014", which will be organized from 14 to 17 October, 2014 in the exhibition center "Crocus Expo" (Moscow, Russia). |
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Flexible couplings of ZTK series have the special characteristics due to their unique design. Features are the construction of a metal coupling half and elastic characteristics of the flexible insertion.
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Backlash-free flexible couplings: ZTK series. Features are the construction of a metal coupling half and elastic characteristics of the flexible insertion. |
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Flexible insertion
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The flexible insertion is made without a hole in the form of five-pointed star, that simplifies its installation. The width of the flexible insertion is larger than the known analogs have, that prevents the skewing at the docking of the coupling halves. |
Vibration isolation of the coupling halves due to backlash "S" at the docking of the coupling halves. |
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External diameter Ø14~Ø30 |
External diameter Ø40 |
External diameter Ø55~Ø100 |
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Application |
Material |
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●Electric motor; |
1) Flexible element - elastomer; |
The couplings can be selected on the basis of two principles: the principle of achieving the coupling rotation without a backlash and the principle of achieving the required torque.
1. Achieving the coupling rotation without a backlash. To achieve a zero backlash of the rotation in cases when helical couplings are typically used which are capable of absorbing the fluctuations at the transmission of torque, a flexible coupling should be used at relatively low torques. In this case the torque value should be less than the nominal shown in the characteristics table for the flexible couplings. To achieve the backlash-free mode, refer to the table below, showing the characteristics of the flexible element.
2. Achieving the rated torque. The flexible couplings are also used to transmit the required torque. Thus, the flexible couplings are mainly used for the power drives of industrial facilities, for example, for driving pumps, which do not require the condition of accurate transmission of the rotation angle.
| Model | Max. rotational speed | Moment of inertia | Torsional stiffness | Admission radial displacement | The tolerance of the angular displacement | Tolerance of the axial displacement | Weight |
| rpm | (kg*m2) | (N*m/rad) | (mm) | (°) | (mm) | (g) | |
| ZTK – 14D | 19 000 | 5,9х10-4 | 46 | 0,02 | 1 | +0,600 | 26 |
| ZTK – 20D | 17 000 | 6,7х10-4 | 55 | 0,02 | 1 | +0,600 | 37 |
| ZTK – 25D | 16 000 | 7,6х10-4 | 63 | 0,02 | 1 | +0,600 | 42 |
| ZTK – 30D | 12 000 | 8,5х10-4 | 72 | 0,02 | 1 | +0,600 | 50 |
| ZTK – 40D | 10 000 | 1,1х10-4 | 550 | 0,02 | 1 | +0,600 | 156 |
| ZTK – 55D | 8 000 | 4,4х10-4 | 1500 | 0,02 | 1 | +0,600 | 362 |
| ZTK – 65D | 6 000 | 9,0х10-4 | 2800 | 0,02 | 1 | +0,600 | 582 |
| ZTK – 80D | 4 500 | 1,8х10-4 | 3500 | 0,02 | 1 | +0,600 | 966 |
| ZTK – 95D | 3 800 | 2,0х10-4 | 4600 | 0,02 | 1 | +0,600 | 1820 |
| ZTK – 105D | 3 400 | 3,2х10-4 | 5800 | 0,02 | 1 | +0,600 | 2430 |
| ZTK - 025D -12 - L032 - RD05x05 | ||||
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ZTK - series |
025D - Outer Diameter |
12 - maximum diameter |
L032 - Length |
RD05х05 - diameter shafts |
External diameter of 14mm to 30mm
External diameter - 40mm
External diameter of 55mm to 100mm
| Product Number |
Dimension, mm | Fastening Bolt M |
Fastening Torque (N·m) |
Rated Torque (N·m) |
Max Torque (N·m) |
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| D | L | L1 | L2 | F | dmin | dmax | |||||
| ZTK-014D06-L022-RD03x03 | 14 | 22 | 7 | 6 | 3.5 | 3 | 6 | M2.5 | 1,0 | 1,1 | 2,2 |
| ZTK-020D08-L030-RD04x04 | 20 | 30 | 10 | 8 | 5,0 | 4 | 8 | M3 | 1,3 | 2,8 | 5,6 |
| ZTK-025D12-L034-RD04x04 | 25 | 34 | 11 | 10 | 5,0 | 4 | 12 | M3 | 1,5 | 6 | 12 |
| ZTK-030D14-L035-RD08x08 | 30 | 35 | 11 | 10 | 5,0 | 8 | 14 | M4 | 1,7 | 6,5 | 13 |
| ZTK-040D22-L055-RD14x14 | 40 | 55 | 19,5 | 12 | 10 | 14 | 22 | M5 | 8,0 | 32 | 64 |
| ZTK-055D28-L078-RD14x14 | 55 | 78 | 30 | 14 | 11 | 14 | 28 | M6 | 8,0 | 46 | 92 |
| ZTK-065D35-L090-RD19x19 | 65 | 90 | 35 | 15 | 12 | 19 | 35 | M8 | 15 | 109 | 218 |
| ZTK-080D45-L114-RD24x24 | 80 | 114 | 45 | 18 | 16 | 24 | 45 | M8 | 15 | 135 | 270 |
| ZTK-095D55-L126-RD30x30 | 95 | 126 | 50 | 20 | 18 | 30 | 55 | М10 | 25 | 260 | 520 |
| ZTK-105D60-L140-RD35x35 | 105 | 140 | 56 | 21 | 21 | 35 | 60 | M12 | 35 | 430 | 860 |
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