With the HKS safety couplings series, Johannes Hübner is expanding its range of encoder system solutions that are specially designed for heavy-duty applications. The series includes both single-joint couplings for correcting angular errors in flange-mounted applications and double-joint couplings that can be used to compensate for shaft misalignment in foot-mounted applications. For the attachment of encoders to inverter-controlled drives, the company recommends the optionally available coupling variants with insulation made of glass fiber reinforced plastic. This allows shaft currents to be effectively interrupted and ball bearing damage to be avoided. Thanks to their robust design and tested safety, the safety couplings are suitable for use under extreme conditions. They operate between -50 and a maximum of +120 °C, while the insulated 'HKSI' or 'HKDSI' product variant works at -25 to +85 °C. This is made possible, among other things, by a shock resistance of 10 g (short-term maximum 100 g) tested in accordance with DIN EN 60068-2-27 and a vibration resistance (DIN EN 60068-2-6) of 3 g (short-term maximum 20 g). A maximum torque of 3 Nm can be transmitted up to the maximum permissible speed of 6000 rpm. The series includes various couplings with overall lengths between 36 mm and 120 mm and bore diameters of up to 22 mm.