Ruland bearing locknuts are designed to fit AFBMA standard shafting that are commonly found in high precision spindle applications. They have the same performance and benefits of their round bore counterparts, while providing additional features. Ruland bearing locknuts are a one-piece clamp type design allowing for a more secure connection on the shaft. They have higher axial holding power than round bore collars, while offering easier installation and adjustment than solid ring locking devices. Ruland double taps each bearing locknut to ensure precise and burr-free threads to allow for easy installation and removal, proper fit, and extended shaft life. Bearing locknuts are manufactured in 1215 lead-free steel with a black oxide finish. They are available in industry standard locknut sizes from N00-N14.