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News

25.09.2014 | We invite you to visit our stand at the exhibition "Mashex-2014"!

Get an e-ticket to the exhibition "Mashex-2014"Dear Partners and Clients!

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"!

Get an e-ticket to the exhibition "Stankostroenie-2014"Dear Partners and Clients!

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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Selecting of ZTK couplings


Selecting the flexible couplings of ZTK series

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


Ordering information

ZTK - 025D -12 - L032 - RD05x05

ZTK - series

025D - Outer Diameter

12 - maximum diameter

L032 - Length

RD05х05 - diameter shafts