what is a concave washer

What is a concave washer used for?

Convex and concave washers are used to transfer clamping forces when the clamping surfaces are not lying parellel to one another. The clamping bolt can be tilted to approx. 3°. The "convex washer" element is made from hardened or stainless steel and is normally used in combination with concave washers.

What are concave washers called?

Description: Also called curved spring washers, crescent washers look like flat washers that have been slightly curved to exert light pressure and maintain flexibility.

What are the 4 types of washers?

Following are the types of washers, as per their utility and functions:Split lock washer.External tooth lock washer.Internal tooth lock washer.

What are the different forms of washers?

The forms go from A to G and dictate the outside diameter and thickness of the flat washers.Form A: Normal diameter, normal thickness.Form B: Normal diameter, light thickness.Form C: Large diameter, normal thickness.Form D: Large diameter, light thickness.Form E: Normal diameter, normal thickness.More items...

What's the difference between a fender washer and a flat washer?

The key difference between the fender washer vs flat washer is that for the same inner diameter the fender washer has a larger outer diameter than the flat washer, and thus the fender washer has more bearing surface than the flat washer.

Are there different grades of washers?

Grades: Flat washers do not have a specific grade as traditional fasteners such as Grade 5 or Grade 8 bolts do however there are two common types of steel used. Standard steel flat washers (low carbon steel) are not rated for hardness. Hardened steel flat washers.

When should you use a curved washing machine?

Curved Washers, or crescent washers, apply light pressure to its mating part to resist loosening of machine components caused by vibration. Much like wave washers, curved washers can also be used to distribute loads of threaded bolts, screws, and nuts evenly.

What is a cupped washer called?

Cupped washers are also referred to as beveled, terminal washers, flanged cup washers, and retainer washers.

What is the difference between Type A and Type B washers?

Type A is a series of steel washers with broad tolerances, where precision is NOT critical. Type B is a series of flat washers with tighter tolerances where outside diameters are categorized as Narrow, Regular or Wide for specific bolt sizes.

What are penny washers?

Penny washers are large diameter washers which spread the load and reduce stress on thin gauge material or soft material such as timber. They protect the surface from being damaged during installation by distributing the pressure.

What is the difference between a flat washer and a spring washer?

Plain washers are flat, whereas spring washers are curved. For most applications, plain washers are typically used. For machines and objects that vibrate, spring washers are recommended. Spring washers are unique because they provide an axial load that counters vibrations and, thus, prevents fasteners from loosening.

What is a saddle washer?

Saddle Washers provide an efficient method of rigidly joining round tubes to various surfaces and can eliminate the cost of coping or welding. These fasteners are designed for easy consumer assembly and can lower transportation costs by promoting the shipment of tubular products in their unassembled form.

What is a fender washer?

A fender washer is a flat washer with a larger outer diameter in proportion to its center hole. They are made from a thinner gauge metal than most flat washers and are designed to spread the load on thin sheet metal.

What is spherical washer?

Spherical washers from SKF are designed to create an exact, parallel plane between the bolt head and the face of the nut. These washers automatically adjust and compensate for the angular deviation between the planes and prevent the bolt from bending.

When should you use a curved washing machine?

Curved Washers, or crescent washers, apply light pressure to its mating part to resist loosening of machine components caused by vibration. Much like wave washers, curved washers can also be used to distribute loads of threaded bolts, screws, and nuts evenly.