Schnorr Safety Washer

Safety Washers The original SCHNORR® safety washers were developed as a reliable and economic bolt locking device with the basic principle of a disc spring. This ingenious form combines the advantage of security through friction and mechanical locking. Original SCHNORR® safety washers are now used world wide where secure fastening connections to counter the effect of vibration are required. Functional Principle SCHNORR® safety washers are in the form of a disc spring but with a trapezoidal cross-section and serrations on both sides. The outer diameter is matched to the head diameter of the pan head and socket head cap screws. SCHNORR® safety washers are available in two versions: the standard safety washer type "S" is available for screws of sizes M1.6 to M36 and of the property classes up to 8.8. For screws of property classes 8.8 and 10.9, higher pretension forces might be necessary. These are covered by our reinforced washers type "VS". Due to the conical form, optimal traction is achieved at highest positive locking due to the helical gearing. Safety Washer type „S" The Original SCHNORR® safety washer „S" is suitable for normal requirements and available for bolt sizes from M 1,6 to M 36 in grades up to 8.8. Safety Washers type „VS" The Original SCHNORR® Safety Washer "VS" can be used with high-strength bolts of the grade 8.8 -10.9 without any restrictions. This extra strong safety washer has a greater thickness for higher pre-tensioning loads. The outside inside diameter as well and the serrations are the same as the "S" type. It can bhe SCHNORR® GmbH is both able to deliver wave springs according to drawings,and to develop wave springs according to customer requirements.Wave springs are wound or stamped parts made of spring steel, which usaually are made of flats (can also be made of round material). Wave springs with static to medium dynamic usage show huge spacesaving potential with reductions of installation height up to 50%. Based on the specific geometry and function of the wave spring, it ensues a very low hysteresis in comparison to the use of a disc spring. For the manufacturing of wave springs a variety of materials is suitable. The SCHNORR® GmbH manufactures wave springs with the dimension range of: Thickness: 0,25 – 5,00 mm Outer diameter: 5,00 – 250,00 mm Inner diameter: 2,00 – 240,00 mm