snubber bearing not turning anymore

Strida Forum Strida Problems and Answers
21

You will be right, but there is still the problem of the unusual bearing size.
(I think 7 mm width bearings should not be used.)

Bearings of 10 mm width are really hard to find;

http://www.jbpipelinesupply.com/?page=store&item_no=495-02-04-0880

http://www.wbds.com/htm/38PP-Tim.htm

http://www.weldingsupply.com/cgi-bin/einstein.pl?PNUM:products2:1:UNDEF:AND:02-04-0880

high quality should be expectable for that price, anyway not guaranteed.

Please don’t get me wrong, but are you sure that the snubber is adjusted correctly (gap between snubber and belt, the bearing should not touch the belt constantly) and/or your belt is not too loose?

22

Yeah, the snubber is correctly adjusted.

23

The strange thing is that when you type “WC87008”, you then find bearings 8 x 24 x 10.319 mm (see http://www.bocabearings.com/bearing-inventory/Radial-Bearings/1010/8x24x10-319-WC87008).
While the bearing 8 x 22 x 10.319 mm has following reference “WC87038” (see http://www.bocabearings.com/bearing-inventory/Radial-Bearings/1115/8x22x10-319-WC87038)

Does anybody have a plausible explanation?

My bearing gave up last week after having ridden in very wet conditions. It started making such a horrible noise :open_mouth: that I was happy to finish my commute at the end of the day…

I will order a new bearing at VanMoof, as they seem to be cheap.

24

Update: Vanmoof is not authorized to supply parts to Belgium, I need to order at Strida.fr.
The bearing costs 9.50 EUR

25

Actually no idea for the bearing type miracle…
You wanted to replace the snubber bearing by a better (sealed) one, I suppose.

Maybe the durability of the bearing can be elongated by the following logic:
More gap - less rounds of the bearing - longer bearing life.
So, to achieve more adjustability, I still think it would be better to exchange the bolt 386 - these days a standard bolt (or very similar) -
to a recessed one.
The original bolt could simply be modified, like so: Re: snubber adjustable on 5.2 LT?

The reason for the bolt change might be explained with this fictive dialogue:

Ming’s commercial department chief: “We have to decrease manufacturing costs, do we really need the expensive recessed bolt?”
Ming’s technical department chief: “It will work with a standard bolt too, but not that good.”
Ming’s commercial department chief: “Well, then use the cheaper standard bolt!”

Imaginable?

Hope Vanmoof didn’t sell all of their snubber kits to Austria :laughing:

26

WTF???
I thought they’re allowed to sell to whole Europe?
Oh, yes, the French pricings are are, hmmm…amazing (?)
:imp:

27

I installed the new snubber bearing from Strida.fr, but next time I will purchase a SKF bearing 8x22x11 (ref: 630/8-2RS1) as it fits as well.
I am pretty sure that its quality will be better than the chinese bearing and this for the same price. It will also have rubber seals on the sides instead of the steel shields which do not prevent water ingression.

28

Tnx for the info Bietrume, I think I’ll look for an SKF one then as a spare for when I should ever need it.