Hi guys. Sorry to use English. I'm just rebuilding my block and I'm wanting to change out the gearbox bearings. What tool do I need to pull the small roller bearing out of the case?
Many thanks and happy riding
Derbi gearbox bearing replacement.
- 42
- Pro tuner
- Berichten: 3695
- Lid geworden op: zo 20 okt 2019, 01:14
- Vervoersmiddel: Aprilia RS4
- Gallery: viewtopic.php?f=9&t=24459
Project: viewtopic.php?f=10&t=25612 - Locatie: Zeeland
Re: Derbi gearbox bearing replacement.
You mean the one you cant get out from the other side ?
There are special tools for that or you can use bread.
Or i was told anyway, didnt try it yet.
You put some bread in the roller bearing and some metal part which fits in the bearing like a cap or something and than you tap with a hammer on it, more bread, repeat and repeat and it should come out.
There are special tools for that or you can use bread.
Or i was told anyway, didnt try it yet.
You put some bread in the roller bearing and some metal part which fits in the bearing like a cap or something and than you tap with a hammer on it, more bread, repeat and repeat and it should come out.
-
- Beginnende tuner
- Berichten: 216
- Lid geworden op: vr 03 mei 2019, 11:01
- Vervoersmiddel: 2010 Rieju RS2 Pro VERKOCHT
2005 Derbi Senda SM - Gallery: https://derbi-forum.nl/viewtopic.php?f=10&t=23984
Re: Derbi gearbox bearing replacement.
Bread wont work with the rollerbearing. I got out by welding a nut in it, heating the aluminium up and extracting it with a bolt.
-
- Banden plakker
- Berichten: 18
- Lid geworden op: di 05 jan 2021, 18:32
- Vervoersmiddel: Senda sm and gilera smt
Re: Derbi gearbox bearing replacement.
Yes that's the bearing I mean. I may just have to leave it
-
- Pro tuner
- Berichten: 1258
- Lid geworden op: do 14 mar 2019, 19:36
- Vervoersmiddel: Aprilia SX50(binnenkort 80), Derbi DRD ProRace 4(verkocht) & Derbi DRD racing Limited 2005
- Locatie: Emst
Re: Derbi gearbox bearing replacement.
I haven't changed that one myself, but cant you Heat the bearing up, jam a large Bolt in there, let IT cool off to shrink the bearing, Heat the engine casing and try to pul the bearing out with the Bolt?
-
- Beginnende Derbi fan
- Berichten: 27
- Lid geworden op: di 05 jan 2021, 15:13
- Vervoersmiddel: Derbi senda xtreme -05
Re: Derbi gearbox bearing replacement.
I think you mean a bearing you can't hammer out? if so i think the tool is called a ''blind bearing puller'' i don't know if you meant that.Derbir100 schreef:Hi guys. Sorry to use English. I'm just rebuilding my block and I'm wanting to change out the gearbox bearings. What tool do I need to pull the small roller bearing out of the case?
Many thanks and happy riding
-
- Pro tuner
- Berichten: 1258
- Lid geworden op: do 14 mar 2019, 19:36
- Vervoersmiddel: Aprilia SX50(binnenkort 80), Derbi DRD ProRace 4(verkocht) & Derbi DRD racing Limited 2005
- Locatie: Emst
Re: Derbi gearbox bearing replacement.
jeah,
this:
https://www.wish.com/product/5d36e141c1 ... &share=web
to be honest, its worth the try for just €35, i dont think you'll need it more then 1 time, atleast i cant imagine another use for myself for it. any professional set is triple the price so for a cheap china set its in my opinion worth a shot.
this:
https://www.wish.com/product/5d36e141c1 ... &share=web
to be honest, its worth the try for just €35, i dont think you'll need it more then 1 time, atleast i cant imagine another use for myself for it. any professional set is triple the price so for a cheap china set its in my opinion worth a shot.
-
- Beginnende Derbi fan
- Berichten: 27
- Lid geworden op: di 05 jan 2021, 15:13
- Vervoersmiddel: Derbi senda xtreme -05
Re: Derbi gearbox bearing replacement.
Yep that's it, you never konw what you might use it for but a cheap set will work for this.