O Ring Friction

Is o ring friction force w is the applied load and a p is the piston area.

O ring friction.

Rubber seal products like o rings and certain gaskets are used in a multitude of different applications worldwide. O ring running friction can cause heat to build up within the o ring material itself. High running friction may cause difficulty by wearing soft metal parts. Compare fkm viton fluoroelastomer o ring compounds for temperature chemical resistance compatibility and price.

Stretch o ring joule effect compress o ring lower durometer of o ring coeffici ent of friction increase durometer refer to rotary seals. Metals such as copper brass or aluminum can be rapidly worn away by a moving o ring this is especially true if high pressures are involved. Durometer durometer shore a is a measurement of the. According to experimental measurements 2 when the compression ratio is 10 the friction generated on the unit contact length is 120 n m.

Axial cross section or thickness. The trapezoidal cross section of the turcon glyd ring t provides very good. For more information consult section 5. 0 0701 to 0 4724 inch.

Select the o ring with a diameter of 3 55 mm. The world s largest orings inventory network. This causes swelling which causes more heat to develop and eventually results in seal extrusion and failure. A minor factor and should be ignored in design work other than for ultra high speeds the theory has been proposed and generally accepted that the increase of friction on standing is caused by.

Hardness of the rubber type of surface surface finish squeeze on the o ring amount and type of lubrication fluid pressure temperature the amount of break out friction that a system will generate depends on the length of time the surfaces of the metal and the seal element have been in physical contact at rest. In addition to the usual causes of running friction. A large proportion of these applications are static seal applications where the o ring or seal is held firmly in place in relation to the gland and would not require consideration of friction or abrasion related damage to the seal. Then the friction generated by o ring is estimated as.