Figure 1 presents the aspect of testing rig: 1--the test spherical roller bearing; 2--the testing head; 3 termoresistance lubricant temperature measurement sunk in the oil bath; 4--electromagnetic transducer for cage speed determination that receives the pulses from the magnets 5; the elastic element 6 measures the thrust outer load on the axial ball bearing 7; 8 and 10 are two elastic bodies (low thickness); 9 and 11 are resistive transducers submitted to traction, bending respectively, by the rotation tendency of the loading head
, due to the friction torque in the roller bearing; 12 and 13 represent the gravitational system for radial outer load.
Failure was typically caused in tension at mid-span by rupture near a knot or under the loading head, in the lower diameter side of the specimen.
The design of the loading heads enabled both rotation and translation of the loaded sections of the test specimen surface during the test.
The specimens were then placed on the test machine with the supports and loading heads adjusted to fulfill the lengths 18 [d.
This effect is due to so called indentation effect and represents the deflection introduced by the supports and the loading head.
Special devices permitting free rotation of the supports, respectively loading heads were designed (Fig.
The Odyssey simplifies the pick and place system by moving the container into the correct position beneath the loading head
while the product is being picked up.
Because the three-point loading system maximizes the bending stress only directly under the center loading head
, its calculated bending strength estimate can be problematic in that it can overestimate ultimate strength unless the decay initiates directly under the single-point load head, an unlikely scenario (Winandy and Morrell 1993).
For high volume applications, IPL Robot's vision control system can operate up to six loading heads
and, if required, each head can be programmed to produce a different pack format.
The loading heads
were equipped with a load evener, and both reaction-bearing plates were able to pivot.
The machine has a large component sequencer with two in-line loading heads