This 1PCS separate optical axis fixed ring locking ring limit ring bearing fixed spindle retaining ring bushing positioning ring clamping is a multifunction fixed ring component designed to locate and secure parts along a spindle. It combines several roles in one part: fixing the optical axis, locking and limiting axial travel, retaining bearings, positioning bushings, and providing clamping support. The size designation for this part is Scsaw 55x90x22. Key benefits Reduces assembly steps by combining locking, positioning, and bearing retention in a single ring. Helps maintain precise optical axis alignment and stable spindle positioning under load. Provides reliable axial retention and clamping for bearings, bushings, and adjacent components. Simplifies maintenance and replacement with a single, standardized part sized Scsaw 55x90x22. Suitable for use in precision and automation applications where consistent positioning is critical. Key attributes Functionality: fixed spindle retaining ring with capabilities for locking, limiting, bearing retention, bushing positioning, and clamping. Compatibility: designed to fit assemblies configured to the Scsaw 55x90x22 size designation. Size: Scsaw 55x90x22. Material: not disclosed by the listing. Performance orientation: supports stable axial positioning and reliable retention to minimize movement or misalignment in spindle assemblies. Typical applications Precision CNC machine spindles where optical axis alignment and secure bearing retention are required. Automated manufacturing lines and robotics where reliable axial positioning and clamping of bushings are needed. Equipment that uses fixed rings for bearing retention and axis alignment in optical or precision assemblies. Usage considerations Verify compatibility with your shaft/bore dimensions corresponding to the Scsaw 55x90x22 designation. Ensure correct seating and alignment during installation to achieve retention and positioning. Check any maintenance or lubrication requirements specific to your equipment, as material details are not disclosed in the listing.