Official Answer
Answer
The thrust load capacity based on ring shear $P_s$ is determined by the formula $P_s = \frac{D t \pi S_s}{K}$, where $D$ is the shaft or bore diameter, $t$ is the ring thickness, $S_s$ is the shear strength of the ring material, and $K$ is the safety factor (typically 3). For a material like SAE 1070 carbon steel with a shear strength of approximately $0.6 \times UTS$, the capacity is directly proportional to the cross-sectional area of the ring presented to the groove wall. However, this calculation assumes that the groove material is stronger than the ring. If the groove is made of a softer material like Aluminum 6061-T6, the groove yield becomes the limiting factor, and the calculation must shift to the bearing area of the groove wall.
