The highly flexible VSK coupling is an integral component for connecting the combustion engine to the right-angle gear drive of the fire pump system. By using the VSK highly flexible coupling, the drive train can be protected from dynamic overload, reduce resonance-induced vibratory torques and provide a convenient connection between the combustion engine and drive shaft.
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The jaw geometry of the Rotex Non-Sparking consists of a conductive high-tenacity plastic that is injected onto the hub body which continues to be made of steel or other metals such as aluminium. The newly developed synthetic material prevents any static charging and is also designed to be so hardwearing that even in cases of elastomer wear out, torque will still be transmitted without any danger of sparking. As a result, maintenance work can be postponed to a convenient time frame. The failsafe and maintenance-free Rotex Non-Sparking is certified under EU directive 94/9/EC (ATEX 95) and thus deemed suitable for the use in explosive atmospheres.
KTR developed a measuring system calculating both angle of rotation and rotating direction in addition to torque and speed for the first time. The new Dataflex series covers a measuring range from 10 to 1,000 Nm and is scheduled to be extended to 5,000 Nm in 2015.
The new precision measuring shaft will rely on the approved measuring principle via strain gauges combined with the latest electronical components. Having a sampling rate of 10 Hz, the system allows for measuring serious torque peaks on highly dynamic drives. The data transmission resistant to interferences operates digitally with a resolution of 24 Bit having a measuring inaccuracy of 0.1 per cent of the terminal value only. The signal provided is extremely low-noise.
KTR further expand their international presence having founded KTR Couplings S. A. (Pty.) Ltd. Based in Johannesburg. The South African national subsidiary will take up business under the management of Gavin Wayne Doran, General Manager, as of July 1st, 2014.
At the Rotex® S-H the hubs are mechanically separated by „cracking“ on purpose. An uneven surface with a positive fit is the result making sure for an exact position of the two halves during assembly. The contoured, uneven cracked surfaces ensure an ideal centering of the hub halves. This guarantees that the hub or the connection of the two hub halves, respectively, is not weakened by the separation by cracking. The „cracked“ hub is screwed in place in block assembly and makes sure that during operation there is no negative impact on the strength of the coupling.