Bosch main bearing

[soundwave]

it fits in to the casing on the right hand side and goes over the shaft so should be easy to replace.

the other side will need a complete strip down.

 

[bigclick]

Il probably do the easy one first

 

[Bearing Man]

Just to clarify for anyone reading this. A "MAX" bearing is a bearing with no cage to hold the balls and therefore can carry more of them. It has about 40% more strength than a cage bearing but is designed solely as a high load pivot bearing. It is not designed to go round and round.
If this bearing is used in a crank or for a motor, the ball bearings just continually crash into each other and rub against each other causing damage and wear and will fail prematurely.
MAX bearing on the left below, cage bearing just below that.

 

[soundwave]

thats a nbk one but they dont last long on my ses wheel they only cost a couple of quid but is there anything that will last longer b4 it sounds like a bag of spanners?

 

[Bearing Man]

Have you read the thing I did on SES bearings? If anyone buys an SES bearing from me, I pre-pack the bearing with marine grade waterproof grease.

 

[soundwave]

i do pack them with grease but they still dont last long as i have to be complicated and run 2 front sprockets.

because of this the ses wheel has to move left and right so imo putting more stress on it than normal.

 

[Bearing Man]

Nice bike and setup The side load shouldn’t be a massive issue for the bearing. I guess it wears the sprocket a little quicker?
Have you tried a bearing with LLU seals and definitely smear the silicone on the outside from time to time. I was doing a bearing every 200 miles and now I’m getting 8 or 900 miles.

 

[soundwave]

i get about 500 miles from them but also have a dongle so can hit over 30mph on the flat which prob dont help but you got a link for a llu one that would be worth a try.

 

[soundwave]

i also keep my bike super clean and dont ride in the rain if i can help it so not much wear on the ses wheel even with 3000 miles plus on it as only had to change the bearings but as soon as they make a noise i replace them.

also be good if you can stock these sprockets as its the key so you can run 2 up front cheap.

https://www.ebay.co.uk/itm/BCR-70e-Sprocket-Electric-Bike-E-Bike-E-Bike-Cog-Sprocket-18-Tooth-/123322851625?hash=item1cb69d6129


20t-18t 12spd eagle all gears work too

 

[Bearing Man]

The LLU bearings are easy to find if you want a MAX but as we know that won't work! I am going to see a bearing supplier tomorrow morning. I will pick some up if they have stock. If you send me your details, I'll send you one to try. It's worth it for that sprocket link you posted, I got to get me one of those

 

[soundwave]

ok thanks tho no rush as got spares anyway lol they come in 14-20t sizes with a 2.5mm off set.

http://www.speedup.bike/prodotto/corone/
one on the right is that kit but only 18t. its also a very tight fit as its thicker and costs bucks!

 

[Bearing Man]

ok thanks tho no rush as got spares anyway lol they come in 14-20t sizes with a 2.5mm off set.

View attachment 27681 View attachment 27682 http://www.speedup.bike/prodotto/corone/
one on the right is that kit but only 18t. its also a very tight fit as its thicker and costs bucks!

View attachment 27683 View attachment 27684

Just bought one

 

[soundwave]

lol tho on haibike you need to put a brass washer on the ses bolt to allow it to move a bit.

imo without one it will wear out the ses teeth faster and a bearing is way cheaper to replace than that at 40 quid

 

[Bearing Man]

I tried to get an LLU bearing for the SES sprocket today and no luck! I am now determined to find one!

 

[soundwave]

https://rollersnakes.co.uk/products/modus-titanium-bearings-x8?variant=8700961325166&utm_medium=cpc&utm_source=google&utm_campaign=Google Shopping&gclid=CjwKCAiAlb_fBRBHEiwAzMeEdpFAB1XI2rbjfRF5_1FU-C-f0SjXzzHWS5U4skBij-SwR57ZI1JyABoCYtYQAvD_BwE

would these not be even better? dunno if they make them the size for the ses wheel tho or whould last any longer ?

 

[Bearing Man]

Would be interesting to try something like these? I have actually found some but after postage to the UK, too pricey! https://www.ebay.co.uk/itm/OMNI-Racer-Worlds-Lightest-TiN-Titanium-Ceramic-Bearing-6902-61902-15x28x7mm-/372178291201

 

[wheeliepete]

Would be interesting to try something like these? I have actually found some but after postage to the UK, too pricey! https://www.ebay.co.uk/itm/OMNI-Rac...ic-Bearing-6902-61902-15x28x7mm-/372178291201

Postage for 10 is $26 if they have them in stock.

 

[Bearing Man]

But, I only want to try one!

 

[soundwave]

All OMNI Racer products come guaranteed against defects in materials, workmanship, or breakage for two (2) years from the date of purchase.

hmmm i might have to take up that challenge lol postage kills it tho

 

[soundwave]

https://www.bearings-online.co.uk/item/2936/EEC/61902-2RS-Full-Ceramic-ZrO2-Ball-Bearing-15x28x7.html?vat_inc=true&gclid=CjwKCAiAuMTfBRAcEiwAV4SDkZvR68yUoId7Pb-Oa3nFq7eWKbo3uWn-Bnsu4gl_bieCZOwMVzzGwBoCFrAQAvD_BwE

would i brake that using a socket and hammer ? looks like plastic lol