Snap ring SM2RSF

        LBTEK stress-free retaining rings offer multiple thread specifications, covering standard SM05, SM1, SM1.5, SM2, and SM3 models to accommodate different optical component installation needs. The product features a nitrile rubber O-ring design. Compared to standard retaining rings, stress-free retaining rings require less force to secure optical components. This method effectively reduces stress damage on the optical component surface while achieving reliable optical sealing around the component, balancing protection and fixation stability.

        The retaining rings retain a dual-groove structure and are directly compatible with LBTEK's spanner wrenches, enabling convenient and efficient installation and removal. It should be noted that due to the built-in rubber O-ring, the clear aperture is slightly smaller than that of standard retaining rings. Actual selection can refer to the corresponding specifications. Additionally, since the O-ring is elastic and installed via compression, the actual thickness may vary by ±0.1 mm from the labeled thickness.