Shur-Lok positive mechanical lock that is not dependent on lubricants or plating for repeatability.
Features & Benefits
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.
Applications
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.
Serrations - Interference Fit
Inference fit is provided by Shur-Lok Design.
Shaft Bolt Serrations
Broaching serrations of shaft/bolt is required. For installation and removal of locknuts and lockwashers contact Shur-Lok for technical sales bulletin TSB001.
