Frequently asked questions about igus® igubal® 

Yes, bespoke sizes can be machined from our plastic rods or plates. The customer would need to supply a drawing of this


Despite the housing design of the E range being narrower, the ball design in the K range is wider which enables a larger tilting angle. 

The variation of the movement is down to the production process:

Clips- These balls added with a clip in process. This is cheaper and we can offer a variation of ball materials. 

Overmolding- This process means the balls are soaked, over moulded and then dried. Sometimes the balls are not completely round at the time of the drying process as this is hard to control. Only W300 is over moulded, limiting the ball selection. 

Yes, igubal® can be used under water but the pressed-in housings, i.e the KGLM & EGLM range may swell and this could be detrimental to the ball movement.

There are a vast range of competitors, which offer varying metal versions of the igubal® range. These can be very high quality and very low so it is difficult to give a definitive answer but generally we have a price advantage of stainless steel options.

The weakest part of a rod end is not the thread as long as it has been screwed in sufficiently. We tend to find that if the rod ends break it at the 10 o’clock position. 

There are various possible ways of securing them:

A circlip ring- you will need to add a groove into the shaft. 

A fixing collar- this will need to be screwed onto the shaft. 

Add a shoulder onto the shaft. i.e the shafts has a smaller diameter at the ends and cannot slip out of the bearings. 

As standard it is. We can make bespoke ones on request. Please email your enquiry through to 

An oscillating movement is like a swinging action. A tilting movement is a pivot movement at an angle. 

This shouldn’t be the norm but due to the manufacturing process and the added step of the assembly with the balls this can take up to 8 weeks in some cases. 

Currently in steel but very soon we hope to offer them in stainless steel and aluminium

These metal Rod ends have 5 times the break strength, which although isn’t often a problem, it means we can combine our self-lubricating igubal® materials with the strength of the metal threads.


Currently, Stainless steel and aluminium. We plan to also offer steel and a range of polymer.

Currently M8, M10, M12 and M16 are those on offer.


Yes, this will be ready around August / September time. We plan to use a stainless-steel rod end housing with an FDA polymer liner and a stainless ball, although we do already have a polymer, Food contact rod end range.

Absolutely not. The ball liner material is made from iglidur® J as standard which is a tribologically stabilised materiel and offers all of the benefits of our self-lubricating polymers. This will be the same when we add other polymer liners to the choices for our customers to make based on their applications. Eg: Chemicals and high temperatures.