1. Characteristic and Merit

1) It always transmits the power fully (100%) under parallel, angular, complex misalignment with flexibility.

2) With angular and parallel displacements the reactive forces may be neglected, thanks to the twin cardanic method of operation, and there, are no periodic fluctuations in angular velocity.

3) Internals have longer life by using special mate- rials.

4) Assembly is extremely simple and time saving. it is simple to mend and exchange parts.

5) Not Require lubrication.

6) Low noise.

7) Oil and heat resistance.

2. Structure

3. Selection Method of Size

1) From the following formula, abtain torque required for selection

T = Selected torque (kg·m)

KW = Transmitted load

HP = Transmitted load

N = Working revolution (r.p.m)

S·F = Service Factor

① The coupling should be selected in such a way as to ensure that the maximum starting torque of the driving or driven machine will not exceed the maximum torque for the coupling.

② With uniform loading and well aligned shafts the coupling can be employed at all torque values up to maximum.

③ If the torque characteristic is irregular the H.S.T Nylon Coupling may be subjected to transient peak loads corresponding to 3 times the listed rated torque.

2) First select same or greater size from comparing with basic torque of each size and calculated torque, and then suitability of boring driver.

4. Reference in Assembling

1) The assembled hubs must in all cases be flush with the shaft ends.

2) If the dimension ‘E’ is difficult to determine, the overall length can be used if the shaft ends finish at the inner collar of the hub.

3) * The stated dimension ‘E’ for the individual couplings must be maintained, especially in the presence of parallel or angular misalignment.

4) ** The permisable misalignment values are dependent on speed and power out puts and capacity.

5) *** It is essential that the coupl- ing sleeves slide easily in the axial direction

6) Accurate alignment of shaft lengthens the life of the coupling.

Type HY (Standard HYPER-FLEX Coupling)

Type NS (Standard HYPER-FLEX coupling)