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.
- Eliminates sheet metal tab and cup washers that can cause foreign object damage problems or preload loss sometimes associated with this type of soft washers.
- Internal keyed lug on washer mates with shaft keyway.
- Internal serrations of nut mates with external serrations of washer.
- Split ring engages internal nut groove for positive retention.
- Split ring is preassembled to serrated washer.
- Can be designed in various wrenching configurations.
- Free-running nut minimizes thread damage on mating part.
Applications
- Retrofit keyed washers where precise preload must be achieved.
- New designs where keying shafts is preferred over serrating shafts.
- Where achieving precise preload is critical.
Serrations - Clearance
Clearance fit is provided by Shur-lok Design.
Shaft Bolt Serrations
Broaching serrations of shaft/bolt is not required, as nut is locked with keyways .
Thread Size
- .500 inch and larger.
- Metric sizes available on request.
Shur-Lok Documents
View our technical sales bulletins, quality certificates, catalogs, and manuals.
View Documents
