Rotating Fatigue Machine

Rotating Fatigue Machine

•  A bench mounted machine for demonstrating the failure of materials when subjected to an alternating stress, showing both low and high cycle fatigue.This reduces set up time and unwanted vibration.
•  A variable speed drive controls the motor to allow safe and gradual increase of the cycle rate.
•  The motor turns a compliant coupling and a precision shaft held in sturdy bearings.  
•  A collet type chuck on the end of the shaft grips the specimen with reliable and accurate concentricity.  
•  A gimbal mounted self-aligning bearing holds the ‘free end’ of the specimen.  
•  The gimbal assembly links to a short load arm. A load cell links the short load arm to a longer load arm.
•  Applies a purely vertical load even when the specimen deflects under load.   
•  The longer load arm has an integral moveable dead weight that sets the load.  
•  Load cell measures the load and an electronic sensor measures shaft rotation.  
•  The separate control and instrumentation unit shows the load, speed (cycle rate) and the number of cycles.
•  The specimens have a special design that creates a point of maximum stress at their midpoint rather than at their end.

Rotating Fatigue Machine ALTEC Laboratory Equipments and ALTEC Laboratory Instruments Tenders.