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Stainless Steel Self Locking Washers
Features & Benefits
Disc-Lock™ Locking Washer Junker Test
Disc-Lock™ Wedge Locking Washers have been tested on a Junker Vibration Machine. The Junker test, considered the most severe vibration test for bolted joints according to DIN 65151, is used to determine the point at which a bolted joint loses its preload when subjected to shear loading due to transverse vibration.
When tested against a standard washer using the Junker test, Disc-Lock™ Wedge Locking Washers remained secure under severe vibration conditions, while the standard washer loosened significantly.
Proven Applications
Disc-Lock™ Wedge Locking Washers outperform conventional, split-ring, and other style washers in a wide variety of high stress, corrosive, and vibration-sensitive applications including:
When installing Disc-Lock™ Washers in a common application, expect an increase in required torque over recommended installation torque to achieve proper clamp load and maximum joint safety. Due to varying installation conditions and customer specific applications, additional information and torque recommendations are available by contacting Engineering support at Disc-Lock™.
- Heavy-duty, self-locking design
- For use with bolts up to Class 10.9, Grade 8
- Available in sizes from 1/4" (M6) to 1-1/2" (38MM) Other sizes available by special order.
- Available in 316L Stainless Steel
- Carbon Steel washers are case hardened and coated with RoHS-compliant Delta Protekt™
- Provided in pre-assembled, glued pairs
- Easy to install with standard tools
- No re-tightening needed once installed
- Vibration proof according to MIL-STD-1312-7
Disc-Lock™ Locking Washer Junker Test
Disc-Lock™ Wedge Locking Washers have been tested on a Junker Vibration Machine. The Junker test, considered the most severe vibration test for bolted joints according to DIN 65151, is used to determine the point at which a bolted joint loses its preload when subjected to shear loading due to transverse vibration.
When tested against a standard washer using the Junker test, Disc-Lock™ Wedge Locking Washers remained secure under severe vibration conditions, while the standard washer loosened significantly.
Proven Applications
Disc-Lock™ Wedge Locking Washers outperform conventional, split-ring, and other style washers in a wide variety of high stress, corrosive, and vibration-sensitive applications including:
- Agriculture Equipment
- Automotive
- Construction Equipment
- Heavy Rail
- Logging Equipment
- Marine
- Military
- Mining
- Oil Drilling Equipment
- Solar
- Wind
- Waste Management
- To install the Disc-Lock™ Washer, place the preassembled pair of washers between the nut and the joint material.
- As the nut is tightened, one half of the Disc-Lock™ Washer is seated to the joint material and the other to the nut.
- Disc-Lock™ Washers should only be used against flat, relatively smooth metal surfaces.
- If the joint material is not metal, the Disc-Lock™ washer may be used by securing the metal plate to the joint material in such a manner that the metal plate will not rotate.
- A torque wrench is not required to install Disc-Lock™ Washers.
- An air-gun can be used when installing and removing Disc-Lock™ Washers.
- If installed correctly, the Disc-Lock™ Washer will ensure that the fastener remains secure, and will not require any re-tightening.
When installing Disc-Lock™ Washers in a common application, expect an increase in required torque over recommended installation torque to achieve proper clamp load and maximum joint safety. Due to varying installation conditions and customer specific applications, additional information and torque recommendations are available by contacting Engineering support at Disc-Lock™.
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