The torsional spring rate and load capacity of C-Flex bearings is dependent upon length, width, and thickness of the internal flat spring beams. High angles of rotation require thin springs to reduce bending stress and thereby result in low torsional spring rates and correspondingly small load capacities.
The cycle life of C-Flex bearings is based upon the fatigue limit of the materials utilized for the spring beams. Bending and load stresses are considered in determining performance ratings which will statistically result in an infinite cycle life.
The flexure design is suitable for a variety of materials such as stainless steels of the martinistic or precipitation hardening variety: inconel, hastelloy, and beryllium copper among others.
Bearings with thin spring beams, such as the C-Flex Series 10 bearings, typically allow for rotation angles of up to +/- 15 degrees for indefinite life with light loads.
* MAX θ¸ = (Angle of Deflection) = The deflection angle from the null position. Positive or Negative.
In comparison, series 20 bearings which have a heavier spring and can accommodate heavier loads, are rated for rotation angles of +/- 7.5 degrees at zero load for indefinite life.
* MAX θ¸ = (Angle of Deflection) = The deflection angle from the null position. Positive or Negative.
The series 30, which are heavier still, are rated for +/- 3.7 degrees.
* MAX θ¸ = (Angle of Deflection) = The deflection angle from the null position. Positive or Negative.
