The following information is a guide to assist you when measuring physical seal dimensions and when taking metal dimensions to determine the proper seal dimension. This guide is not a guarantee that the dimensions you take are going to be 100% correct. If you are unsure of the dimensions, please contact our technical support associate by calling (800)6-4-SEALS or e-mail to firstname.lastname@example.org.
I.D. Inside Diameter
O.D. Outside Diameter
C/S Cross Section = (O.D. - I.D.)/2
Measurements for a typical O-ring
Measurements for a typical U-seal
Measurements for a typical wiper
Measurements for a typical piston cup
Measurements for a typical V-packing set
R Rod - Wiper I.D.
Dw Groove Diameter - Wiper O.D.
Ww Groove Width - Wiper Heel Height
R Rod - Rod Seal I.D.
Dr Groove Diameter - Rod Seal O.D.
Wr Groove Width - Rod Seal Height
Gland Seal (usually an O-ring)
Dg Groove Diameter - Gland Seal I.D.
Wg Groove Width - Gland Seal Cross Section
B Bore - Piston Seal O.D.
Dp Groove Diameter - Piston Seal I.D.
Wp Groove Width - Piston Seal Height
Measurements for a typical cylinder