Rotating bearing support

 An important, easily underestimated detail in the design of the pikchain® is the interface between the c-chain® and the slewing ring, or the rotary union. The c-chain® must be secured in such a manner that it does not bend or collapse at the point of directional rotation. igus® has designed a special component to address this issue. On the one hand, it gently guides the energy chain in the radius, and on the other, facilitates nearly friction-free rotation by using a PRT bearing from igus®, without generating significant torque. A hollow shaft then connects the slewing ring or the rotary union with this rotating bearing support.

 As I already wrote in one of my earlier papers, the devil is truly in the details.




 Back view PRT bearing

Endless space …

If you think now that our pikchain® is taking off with the Enterprise and James T. Kirk, I must disappoint you.
I still have something that you might like:

It is still in the study phase and the first models have already been implemented, but I’m pretty sure we will soon be able to offer pikchain® for theoretically infinite distances or widths. We are going to transfer the modular system of our energy chains® to the pikchain®. In the future, we can transfer this image of an energy chain® exactly to the pikchain®.

For you this means: A huge selection of sizes and widths for “your” pikchain®. You can find exactly what you need.

Planet igus® is waiting for your arrival!

What options are available in triflex® R and what are the advantages of each?



TRC version
The TRC version has an enclosed design – cables and hoses are protected from damage through external factors such as chips or welding spatter. The following sizes are available:

TRC.125.182.0 (*)


TRE version
The TRE version has an “open design” with the igus® easy chain® system. Cables and hoses can be later inserted from the outside. This has inter alia the advantage that cables and hoses – with assembled connectors or fittings can be inserted or replaced in a flash in the TRE. The TRE version can be extended and shortened very easily, which can be done without tools. The following sizes are available:

TRE.125.182.0 (*)


TRE-B version

The TRE-B version is an enhanced version of the TRE version. An additional stop dog on the “ball” prevents the ball from jumping out of the socket connection in heavy loads – thus we arrive at an approximately 4-fold higher bend-radius stability in comparison to the TRE version. The dismantling of the TRE-B version is performed by a tool that we deliver with the goods. The TRE-B version is the new standard in the RS and RSP pull-back systems. The following sizes are available:



TRE-C Version
The TRE-C version is a special model for very demanding applications. The advantages of TRE-C version lies in the ease of installation and stability. The filling with cables and hoses is identical to the TRE and TRE-B versions. The separation of the TRE-C version is executed by the unlatching and pushing out a locking pin – the joining of the TRE-C version is just as simple.
The following sizes are available:

(*) The TRE.125.182.0 and TRC.125.182.0 are designed according to the TRE-C system, but is not marked with the suffix “C” in the part number.


TRL version
The TRL version is our “light” version and is suitable for simple applications. The TRF consists of a 3-chamber design in conjunction with igus® easy chain® system. The tensile forces are transmitted like in TRC and TRE, through the ball and socket joint “trailer principle”. The TRL is the lowest priced.
The following sizes are available:


Why triflex® R and no protective hoses …

The triflex® R energy supply system was developed for sophisticated robotic applications and compared to the protective hose, offers the following technical advantages.

 Why triflex® R and no protective hoses ... 1. Defined minimum bending radius
Each triflex® R chain link has a stable circumferential bending radii stop. This ensures that the minimum bending radius of cables/hoses doesn’t fall short and the service life of the application is significantly increased.
Why triflex® R and no protective hoses ....2 2. Defined torsion stop
Every triflex® R chain link has a defined torsion stop. This prevents the cables and hoses from being overloaded during operation. Thus, the lifetime of the application is significantly increased.
Why triflex® R and no protective hoses ....3 3. Modular design
All triflex® R type series and sizes follow a modular system. Thus each triflex® R energy supply system can be extended and shortened. Any desired length can also be retrofitted – individual triflex® R chain links can be used or removed at any position.
Why triflex® R and no protective hoses ....4 4. Ideal cable routing
By the 2- or 3-chamber system, a spatial separation of the cables and hoses can be implemented. Different cables and media can be securely routed, separated from each other.
Why triflex® R and no protective hoses ....5 5. High tensile strength through trailer system
Each TR chain link has a “ball/socket connection”. The push/pull forces are transmitted through this connection. The “ball/socket connection” is based on the “trailer” principle (similar to a trailer hitch), which absorbs very high forces.

Shall it be a little bit more?

Can you imagine that! A pikchain®, mounted on side, axis distance 35 meters and a height of 400 mm for the c-chain? No?
We do! But we have tested it before to be sure! See video.

You see, that this project has nothing to do with our tiny show pikchain®, which we have presented this year during so many trade shows. But the functional principle is absolutely the same.

We combine a slip ring/rotary union with an energy chain, which can now run, endless and continuously and which is connected to the conveyor chain, to say pikchain®. This principle works with small or big chains from igus®, or in this case for size XXL. Basically, any chain from igus can become a c-chain and so an important component for the pikchain®.

Shall it be a little bit more? I mean more information about that XXL pikchain? Just call me or write me an E-Mail. I will be happy to answer your questions.