Changing pinion gear bearing in a BBS02

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bentstrider83   10 mW

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Changing pinion gear bearing in a BBS02

Post by bentstrider83 » May 21 2019 10:01pm

So, I had a major malfunction with my BBS02 a month ago. I replaced the worn, secondary reduction gear and that still didn't change the issue. That being the motor not being able to run properly when using either regular pedaling, or pedal-assist.

The next thing I'm about to replace would be the nylon gear and the possibly worn bearing in there. On top of that, I'm putting in a new pinion gear bearing. I removed the pinion gear bearing using light hammer taps and a blunt screwdriver to push the bearing out. Now to get it back in. I'm deadlocked on that one.

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amberwolf   100 GW

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Re: Changing pinion gear bearing in a BBS02

Post by amberwolf » May 21 2019 10:32pm

if it still runs normally when using throttle, then it's probably not mechanical.

unfortuantely i don't know enough about the insides of the bbsxx systems to help with the mechanicals, but there are some threads about replacing various parts, that may have info you can use. might have to poke around though.

bentstrider83   10 mW

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Posts: 27
Joined: Dec 13 2014 7:31pm
Location: Clovis NM

Re: Changing pinion gear bearing in a BBS02

Post by bentstrider83 » May 21 2019 11:08pm

Even when the throttle is being used, there's still mechanical resistance. Lots of grinding coming from the motor. I did take out the nylon main drive gear that gets spun by the main shaft gear coming from the motor winding. The one way bearing in the nylon gear didn't seem to be fully cooperating.
Unfortunately, not too many people have them out here in this area, let alone bicycle use in general. So I'm kind of on my own.

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amberwolf   100 GW

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Re: Changing pinion gear bearing in a BBS02

Post by amberwolf » May 21 2019 11:09pm

dunno if it helps but you could check these;
https://endless-sphere.com/forums/searc ... mit=Search
it's a lot o posts but you could narrow the search down to just bbs02 if you like.

bentstrider83   10 mW

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Posts: 27
Joined: Dec 13 2014 7:31pm
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Re: Changing pinion gear bearing in a BBS02

Post by bentstrider83 » May 23 2019 7:45am

Already used this. Not finding much in relation to the bearings install/removal.

bentstrider83   10 mW

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Posts: 27
Joined: Dec 13 2014 7:31pm
Location: Clovis NM

Re: Changing pinion gear bearing in a BBS02

Post by bentstrider83 » Jun 14 2019 3:59pm

Well, I just hammered and man-handled everything back into place. Seems to be plenty of loners and lone-wolves who keep to themselves in here in regards to helping a brother out. Bothersome place.

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amberwolf   100 GW

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Re: Changing pinion gear bearing in a BBS02

Post by amberwolf » Jun 14 2019 11:01pm

Sorry...I just don't know anything about the internals of those drives. :/

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