Shur-Lok - Sta-Lok® Bearing Retaining

Positive mechanical lock that is not dependent on lubricants or plating for repeatability.
Achieves precise preload - serrations provide adjustment that eliminates back-off or over-torque.
Maintains fatique strength at reduced weight.
External serrations in the nonload carrying portion of the thread elminates keyways allowing reduction of shaft wall thickness or diameter.
Keyway stress concentrations are eliminated.
Internal serrations of washer mates with serrated shaft.
SL60 series nut and washer supplied as separate components under NAS 1493 and NAS 1443 part numbers.
SL61 series washer incorporates an additional removal feature.

Interference type - where there is high RPM and/or load reversals.
Where achieving precise preload is critical and existing nuts cannot provide adequate adjustment.
Where vibration is present.
Where weight reduction is a priority and shaft wall thickness or diameter can be reduced.
Where a positive mechanical lock is required.

Broaching serrations of shaft/bolt is required. For installation and removal of locknuts and lockwashers contact Shur-Lok for technical sales bulletin TSB001.

Bearing Locknuts Documents	Notes
Bearing Locknuts Catalog
Ring Locked Positive Locking System	TSB 0001
Ring Locked NSA5454 Cross Reference to Shur-Lok Part Numbers	TSB 0002
SL7702, SL7703, SL7708 Key-Fast Locknut Assembly and Shaft Key-Way Preparation	TSB 00010
SL7588 Key-Fast Locknut Assembly and Shaft Key-Way	TSB 00013

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Sta-Lok® Bearing Retaining