The quickest way to find a seal
94 401 44 20

Washers

Washers, ideal discs for loads tightening

Square or rectangular section washers are an optimum alternative to o-rings as they afford a greater sealing surface and they can work with high pressures and loads. Under normal working conditions, in other words, within the elastic limits of the rubber and the recommended speed so that the material does not overheat, rubber washers allow optimum sealing to be ensured, even when the contact surfaces are in motion.

These are some of the advantages of JIOrings washers:

  • Tight tolerances particularly as regards thickness.
  • Excellent Price/quality ratio particularly for medium-sized and large series.
  • Smooth finish of the surface and the edges.
  • No investment in mould for the most standard sizes.

We have provided more information about the washers if you wish to learn more about them. And, of course, not forgetting you can request an estimate or purchase from our online store, available 24 hours a day.

Washers, product details

MaterialsHardness [SH A]Color
ACM50-90Black
AFLAS®70-90Black
BUTYL®50-90Black, Blue
CR40-90Black, Gray, Green, Red, Yellow, White
EPDM40-90Black, Blue, Gray, Green, Brown, Red, Purple, Orange, Yellow, White, Beige
FPM60-90Black, Blue, Gray, Green, Brown, Red, Purple, Orange, Yellow, White, Beige
FVMQ40-90Black, Blue, Red, White
HNBR50-90Black, Blue, Green, Brown, Red, Yellow
NBR40-90Black, Blue, Gray, Green, Brown, Red, Purple, Orange, Yellow, White, Beige
NR40-90Black, Red
PU50-90Black, Blue, Green, Red, Yellow, White, Translucent
VMQ30-90Black, Blue, Gray, Green, Brown, Red, Purple, Orange, Yellow, White, Beige, Translucent
SBR40-90Black

On request, we can offer compounds adapted to specific requirements such as, for example, food stuff and drinking water compounds.

Tolerances regarding diameters

Nominal Diameter (mm)Interior (mm)Exterior (mm)
EN2EN1EG2EG1
FromUp toStandard tolerancesLow tolerancesStandard tolerancesLow tolerances
6,30100,350,250,250,15
10160,400,350,350,20
16250,500,400,400,20
25400,700,500,500,25
40630,800,700,700,35
631001,000,800,800,40
1001601,301,001,000,50
1600,80%0,60%0,50%0,30%

The table below sets out the standard tolerances that JIOrings usually offers its clients. Said tolerances are based on the standard ISO 3302-1. When we don’t have specific manufacturing requirements, we propose Class 2 (EN2 for the interior diameter, EW2 for the section and EC2 for the thickness).

Tolerances regarding thickness and section

Nominal Thickness (mm)Thickness (mm)Section (mm)
EC3EC2  EW2EW1
FromUp toStandard tolerancesLow tolerances Standard tolerancesLow tolerances
0,5010,200,150,200,10
11,600,250,200,200,10
1,602,500,350,200,200,10
2,5040,400,250,200,10
46,300,500,350,200,15
6,30100,700,400,250,20
10160,800,500,350,20
16251,000,700,400,25

The table below sets out the standard tolerances that JIOrings usually offers its clients. Said tolerances are based on the standard ISO 3302-1. When we don’t have specific manufacturing requirements, we propose Class 2 (EN2 for the interior diameter, EW2 for the section and EC2 for the thickness).