Aug 01, 2016

Wellendichtringe - German word for rotary shaft seals and what you need to look for

rotating shaft seals

There are various factors you need to consider, when choosing Rotary Shaft Seals.

This post shall give company owners and everybody that needs seals an overview of what to look for.

You need to have some technical knowledge of seal-design because only then you are capable to know, what to look for.

There are a lot of industrial applications which make use of Rotary Shaft Seals. Follow my instructions and it should be easy for you to find the right type:

Selecting correct materials

Rotary Shaft Seals can be made of a lot of different materials and you have lots of choices to choose from. Some of the many and most popular materials this Wellendichtring (german word for it) can be made off are:

  • Silicone
  • EPDM
  • BUNA-N
  • and others.

Depending on your application (automotive, lawn mower or other gadgets) you should choose the right kind of material!

Those seals need to endure different kind of pressures and of course temperatures. The outined materials can mostly be used for different levels of pressure and temperature. 

Seals and their tightness

Rotary shaft seal's squeeze ration can only be figured out if you know the overall tightness of a seal.

This can help you to understand the force to the materials that will occur during this project. It is really important to read the entire description or even ask the vendor if unsure, if you are planning to use such a wellendichtring for your projects.

Different vendors, different seals and of course different applications.

Just by looking through stores and the different types that are offered there, will give you a clear overview that you can not use any vendor's seal for any purpose!

Hardware Design

Different types of Rotary Shaft Seals are required for different hardware designs.

Ensure that the seals you are choosing can tolerate the compression and pressure.

As I already mentioned the most important factor is to choose the kind that suits your application most.

Just in case if you are wondering where you can find high quality seal technology, there are multiple opportunities where you can buy them. It depends where you are currently living and what kind of stores are next to you. But what I can surely say is, that high quality guidance is a very important factor concerning those small and very important pieces. You can also buy them in online shops. Just take your time and identify a reliable supplier and do not make any mistake in this step.


There are a lot of factors that you need to consider by choosing appropriate rings/seals for your application. You need to have a close look at all the information that is provided by vendors and if this fits your application.

I would also ask them some questions and try to find out if they know what they are talking about.

If you are living in a middle-sized to large city you should be able to find a lot of suppliers. But as mentioned: quality is more important than quantity. Check the suppliers out and ask them a lot of questions before making your buying decision!

Happiness, Health and Wealth - achieved with your own business. An overview.

Home Office

What can cause you a lot of headaches, when you want to start your own business. After reading this article, you may be well prepared and hopefully have less headaches starting your own company.

You need to ask yourself following questions:

  • How much space does my office need?
  • Do I need to hire people?
  • What are my business targets? Do I need a business plan?
  • What amount of money would I like to make within 5 or 10 years from now?

If you are serious about your business, you need to answer yourself those questions. I also added further 5 questions, that need to be answered by yourself, BEFORE you even consider to start a business:

1) What industry will I be in?

Let's assume, you are an IT-geek and want to start some kind of busines in this niche. This industry is huge, and has a lot of different different companies to offer ranging from small, to middle-sized to very large (like Dell Computers). If you are new to this field, this can be a huge chance to you.

First and foremost you need to choose your niche. Which kind of products or service will you become an expert in? Do a competition check! What don't they offer but is highly needed by customers? Do an extensive market check.Don't just be one of another 100 vendors - be unique!

2) What are you able to invest in your success?

If you want to make money, you need to invest money. Simple as that.

If you want your ideas to become reality and your business to grow, you definite need to make some investments. May it be a new computer, some co-workers that have to handle stuff for you, or something else. You need to write down, how much money you are able and willing to invest into your ideas.

If you have a lot of money, you can use your savings or you could ask some potential business partners and ask them if they want to invest in your supreme ideas.

3) How many employees will you need?

Well-trained people help you growing your business in a very fast manner! Don't understimate the help of professionals who are experts in their fields. It is not possible for you to do anything by yourself as a day has just 24 hours and you also have to sleep somewhere within this timeframe. If you want to grow, you need help by employees or by external helpers. In my opinion there is no way around this.

You and your co-workers are helping each other to grow even further.

4) When will be the earlist point, when you are making money?

Certainly you want to make money right by the beginning. But as I said: you need to invest money ot make money. And this is true. Nevertheless you need to have some deadlines in your head, when you (at the latest) should have made money already.

5) Do you have the skills to run a company?

Putting dreams of your own business into reality costs a lof of sacrifice. And there is also the chance that this business won't work out. Nevertheless there is a saying and this is 100% true: "Never give up". I can only advise you to never give up, as this would kill your dreams. But I also advice you to be clever: use your brain and think about what you can do better on the next try if the first attempt should have failed.

The ultimate target is to run a business for financial freedom. Then: push through it and achive your goals!

Those five point could sound very serious to you but you should go through them. Managing things by yourself is a big task and can be a tough decision. You need to be focused and have a clear mind and understanding of business coherences.


Be prepared to work hard, focus and think about every situation you can encounter.

If you want to be the Piranha in the water, you have to work harder than "everyone else" and put your heart into your intentions. Eventually you will win and be a successful entrepreneur!