Elastomer struts?
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These apear to be the Alpha/Daniel Fenn struts. They move in a bearing that is mounted in the top of the well, the steel piston travels thrue that bearing, and the piston top inside the velomobile shell, then extends longer. There is a thinner xsection part inside the elastomeres and a wider part at the bottom underneath the elastomere elements. The thin and wide bit do not move in relation to eachother, its 1 part.
I"m not sure about the red/orange material. The Black is probably an Elastomere damper. It is used often in industrial use, as a vibration damper. Eleastomere has different hardness rates, very common are 70,80,90 shore. 70 is like hard rubber but u can squish it a bit, 90 feels like plastic. I cannot compress it by hand, but can see it move if i lean on it with bodyweight on a toolhandle.
The red orange stuff is likely cellasto, also made from roughly the same stuff, but then with lots of air in it, bit like a foam campingmat. There fore it has a different behavior.
The cellasto material is also in use in cars as bumpstop material.
@roland65 sells elastomeres that fit inside the normal Velomobiel.nl struts.
Birdy folding bikes and Ice Trikes use elastomere parts for the suspension, both look very similar in dimensions.
The Cane Creek thudbuster also uses cylinder like Elastomeres, that are sold seperatly.
Greetings, Jeroen
I"m not sure about the red/orange material. The Black is probably an Elastomere damper. It is used often in industrial use, as a vibration damper. Eleastomere has different hardness rates, very common are 70,80,90 shore. 70 is like hard rubber but u can squish it a bit, 90 feels like plastic. I cannot compress it by hand, but can see it move if i lean on it with bodyweight on a toolhandle.
The red orange stuff is likely cellasto, also made from roughly the same stuff, but then with lots of air in it, bit like a foam campingmat. There fore it has a different behavior.
The cellasto material is also in use in cars as bumpstop material.
@roland65 sells elastomeres that fit inside the normal Velomobiel.nl struts.
Birdy folding bikes and Ice Trikes use elastomere parts for the suspension, both look very similar in dimensions.
The Cane Creek thudbuster also uses cylinder like Elastomeres, that are sold seperatly.
Greetings, Jeroen
roland65
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I think the colour depends on the age, means the contact with oxygen. New ones are bright yellow.
Are there any pictures of what the Igus bearing looks like?
Jack-Lee
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I use this one.
The axial force go directly in the Carbon, so there is only a small radial force, so its quite robust
The axial force go directly in the Carbon, so there is only a small radial force, so its quite robust
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All the others have that one: https://www.igus.de/product/64?artNr=GFM-1012-12
The rod is this one: https://www.igus.de/product/138?artNr=AWMP-12
The rod is this one: https://www.igus.de/product/138?artNr=AWMP-12
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Your drawing is correct. The bearing sits in the shell and the rod rotates and slides in the bearing. Because of the steering geometry, the bottom of the strut moves while u steer, and follows a J shaped track. As a result of that, there are slight changes in angles of the strut to the bearing. A "Gelenklager" does allow for those angular changes, cause the yellow part of the bearing has a rounded shape. Check the drawings on the site.
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In case that you took the picture form this SOURCE all information is given ...
EFFBE Elastomer DIN 9835 Typ 295 AD 32 mm except the inner diameter, which I too currently do not remember. (I believe 13,5mm)
Order some of different length (or cut them yourself) and see what fits you.