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O-ring seals – in perfect shape, part 3

Published on: 11.08.2020

Production of the O-ring groove

In addition to the correct selection of O-ring seals, the correct introduction of the O-ring groove is essential for the optimum sealing result. In the third part of our series ‘O-ring seals – in perfect shape’ we show you how you can save time during production with our countersink for O-ring seals, and increase the quality of the O-ring groove at the same time.

Comparison: Production of the O-ring groove with a milling cutter or countersink for O-rings

A direct comparison shows that considerable time is saved when the groove is introduced using a countersink for O-rings. Furthermore, the difference in quality is clearly seen in the following figure. When produced with a milling cutter, milling grooves are created which run at the bottom across the groove. This is not optimal for sealing. With our countersink for O-rings, on the other hand, concentric grooves are visible which make optimal sealing possible. This saves time and provides security.

O-ring groove made with a milling cutter

Milling grooves criss-crossing the groove bottom hinder optimal sealing.

O-ring groove made with a countersink for O-rings

Concentric grooves ensure optimal sealing.

Countersink for O-rings at Meusburger

The countersink for O-rings ensures good accessibility in pockets (e.g. inserts) right up to the edge.We offer two types of countersinks for O-rings:

WZB 12112 Carbide countersink for O-rings

Best groove surface quality
Suitable for materials up to 54 HRC thanks to high-quality TiAlN coating
Dimensions coordinated to provide a perfect fit for the O-ring seal on the outer diameter
Available in the 4 most common sizes

WZB 12112

WZB 32112 HSS Countersink for O-rings

Can also be used on column drilling machines with the WZB 32113 pilot for countersink
Available in 10 sizes

WZB 32112

With our cutting data calculator you get the right cutting parameters in no time.To save you the time-consuming selection and matching of O-ring dimensions, O-ring grooves and matching countersink, you will find the appropriate combinations in our groove recommendations.

Cutting data calculator O-Ring seal groove recommendations

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