Torsionally resilient joints

The GE torsionally resilient joints reduces torque peaks and smoothens vibrations during deceleration and sudden stops in power transmission.

Torsionally resilient joints

The GE torsionally resilient joints are used on drivelines for different functions depending upon the specific application.

- The GE can reduce torque peaks generated by the inertia of machines with heavy flywheels or rotors during abrupt starts or deceleration.

- The GE torsionally resilient joint can smoothen alternating or pulsating loads that may shorten the life of power transmission components.

- The GE can modify the natural frequency of a system, to avoid resonance eventsthat could cause failures.

- The GE torsionally resilient joint can smoothen torsional vibrations generated by unequal working angles on drivelines with more than one joint.

Function

A rubber ring within the joint operates like a torsional spring. This rubber ring connects the yoke/housing to the hub. The rubber is vulcanized to both the inner an outer metal surfaces to prevent the hub from slipping and to maintain phasing of the yokes.
The GE torsionally resilient joint han as internal limit pin that constrains flexture to around 20°. This avoids excessive deformations that could create failure of the products. In case of high torque peaks, it is sometimes recommended to install a torque limiter.
GE torsionally joints are installed at the end of the driveline, outboard the inner yokes. Consequently the joints maintain the proper phasing even when the hub is deformed to its flextural limit.

Cardan shafts with torsionally resilient joints are often used on multi-spindle rotary cutters, whose blades have overlapping cutting edges.