There are many sharp elastic warping teeth on the circumference of the inner tooth elastic washer and the outer tooth elastic washer, which are punctured and pressed on the supporting surface to prevent the loosening of the fastener. The inner tooth elastic washer is used under the screw head with small head size; Elastic washers with outer teeth are mostly used under bolt heads and nuts. The elastic washer with teeth is smaller than the ordinary spring washer, and the fastener is stressed evenly and reliable to prevent loosening, but it is not suitable for common disassembly. Wave spring washer GB/T 7246-1987 Wave washer is divided into WG type, WL type, WN type WG wave washer :WG wave washer is an open-mouth elastic washer, which can usually be installed in a small space, such as prestressing the bearing to reduce the bearing The running noise improves the running accuracy and smoothness of the bearing. In addition, there are also a large number of application materials in electronic and electrical appliances, including carbon steel, stainless steel, copper alloy, etc. Wl-type wave washer: WL-type wave washer is a lap type elastic washer, which can usually be installed in a small space, such as stressing the bearing, reducing the noise of bearing operation, and improving the running accuracy and smoothness of the bearing. In addition, it also has a large number of applications in electronic appliances. Materials are carbon steel, stainless steel, copper alloy and so on. WN type wave washer :WN type wave washer is multi-layer wave crest overlapping type elastic washer, this series is compared with WL type, because it is composed of multi-layer material, so the K value curve under the same compression stroke is more gentle than WL type, suitable for large elastic, and the whole working stroke elastic release is more uniform. The materials used are carbon steel, stainless steel, copper alloy and so on.
The dish spring washer is also known as the Belleville spring washer, the inventor is the French Belleville. DIN6796 Dish spring washers (HDS series) are locking washers designed for bolt and screw connections. It is designed and manufactured according to DIN 6796 for the connection of medium or high strength bolts and screws. The large support load and elastic recovery make the HDS series very effective, and the bolt tension can withstand relaxation due to wear, creep, relaxation, thermal expansion, contraction of the wearing part, or compression of the seal. The HDS series increases the elastic effect of the screw several times, and it can effectively replace the ordinary spring washer, but it is not suitable for the combination of lock washer and flat washer. Because the HDS series is a disc-shaped spring that can be folded or superimposed. The combination of the involutive mode can increase the deformation of the disc spring set, and the combination of the superimposed mode can increase the spring force of the disc spring set. The ideal installation method is to flatten as much as possible, the closer to the flatten state, the faster the tension increase, without the need for a torque wrench, you can get the appropriate bolt tension.
