O Ring Slot Dimensions

Review the general o ring groove design considerations before moving onto the.
O ring slot dimensions. Gland depth x groove width area of the gland must be larger than the cross section area of the o ring pi x r 2. Otherwise many bad things will happen to your design. O ring size as 568 112 1 2 id x 3 32 w nominal dimensions gland depth f 090 000 001 from chart groove width g 144 003 from chart rod gland d c 2f 500 2 x 090 680. An o ring is contained in a gland and forced to flow into the surface imperfections of the glands and any clearance gaps available to it.
O ring groove design guides offer default dimensional guidance on the most basic o ring groove design applications. O ring cross section and o ring groove design data from row inc. If the o ring quad ring x ring or square ring you need doesn t fit these standards custom. Whether your application conforms to u s japanese jis british bs or common metric sizing for o rings these o ring size charts will help you locate the right o ring size.
An o ring can perform sealing by means of squeeze under low pressure conditions. Squeeze inches o ring cross section diameter in inches gland depth. Should not exceed 3 of the rod gland diameter for o rings with an i d. In de signing this new group of o rings we left spacing in the part numbers to allow us to add additional sizes should they be required.
This metric o ring groove design reference guide will help you find the right radius back up pressure and other o ring dimensions for basic applications. Greater than 250 mm or 5 for o rings with an i d. Manufacturers of encapsulated o rings and industrial gaskets. Nominal cross section o rings.
The proper o ring size is a fundamental aspect of proper o ring performance. The best o rings are useless without the right groove design which becomes increasingly important the more demanding the application environment. Smaller than 20 mm this is not always possible due to tolerance issues which can result in a greater o ring o d. Until now o ring standards have left a gap between the 1 8 and 3 16 nominal cross sections.
O ring handbook parker hannifin o ring division europe. The extent of extrusion depends upon the hardness of o ring the pressure and the size of the clearance gap. Please contact us if you are looking for a size not shown in the 5 32 group. Make sure the squeeze is sufficiently high enough to seal but low enough to allow dynamic movements.