bloooody suzuki parts - Page 4 - SV650.org

Bibio · 31-07-09, 04:01 PM

well, well, seems that suzuki has built in 'play' in the swing arm bearings.

was at dealers today had the bearings checked over and they say that they are supposed to be like that.. i said ermmm no they are not, swingarm's should have no play, mechanic took me round a few bikes inc a brand new out of the crate bandit and guess what yup they all had play in the swingarm...

you learn something new every day...

it's still not going to stop me greasing them up...

DarrenSV650S · 31-07-09, 04:06 PM

Did he say why they have been given play

Bibio · 31-07-09, 04:20 PM

yes, something to do with handling believe it or not.. he said that Suzuki have done lots of research on the subject and came to the conclusion that a little 'play' was better than none. this was Cupar's top mechanic that i was speaking to, he also said that they get a lot of people coming in for the same reason.

so next time anyone is having an MOT and they say that there is 'play' in the swingarm tell them to phone Suzuki.

31-07-09, 04:22 PM

I'd imagine its a design to reduce metal fatigue, and to reduce torsional loading on one specific point each time there is lateral loading (perpendicular to normal swing path).

However please correct me if you disagree!

Bibio · 31-07-09, 04:31 PM

hhhmm, that's interesting, basically to let the bearing move so as it's not using the same point of contact all the time... i thought that the whole point of a bearing was to have the force encompass the entire bearing thus spreading the load more evenly..

31-07-09, 05:02 PM

Does sound slightly iffy to me! I wonder if the GSXR's are like that too?

Bibio · 31-07-09, 05:05 PM

he never mentioned the GSXR or the busa funnily enough...

31-07-09, 05:07 PM

In the area of intentional loading yes, but you dont want to encourage a bending moment on the bearing which may cause twisting or uneven loading.
If you fix the bearing then a bending moment may make it perform poorly, or break.
Just basing this general engineering theories, however I dont even know what the bearings look like!

31-07-09, 05:36 PM

They are needle roller bearings

DarrenSV650S · 31-07-09, 06:25 PM

How do you know if it's worn if it is designed to be loose

31-07-09, 04:01 PM	#31
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: bloooody suzuki parts well, well, seems that suzuki has built in 'play' in the swing arm bearings. was at dealers today had the bearings checked over and they say that they are supposed to be like that.. i said ermmm no they are not, swingarm's should have no play, mechanic took me round a few bikes inc a brand new out of the crate bandit and guess what yup they all had play in the swingarm... you learn something new every day... it's still not going to stop me greasing them up...

31-07-09, 04:06 PM	#32
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Re: bloooody suzuki parts Did he say why they have been given play

31-07-09, 04:20 PM	#33
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: bloooody suzuki parts yes, something to do with handling believe it or not.. he said that Suzuki have done lots of research on the subject and came to the conclusion that a little 'play' was better than none. this was Cupar's top mechanic that i was speaking to, he also said that they get a lot of people coming in for the same reason. so next time anyone is having an MOT and they say that there is 'play' in the swingarm tell them to phone Suzuki.

31-07-09, 04:22 PM	#34
Springbokki Guest Posts: n/a	Re: bloooody suzuki parts I'd imagine its a design to reduce metal fatigue, and to reduce torsional loading on one specific point each time there is lateral loading (perpendicular to normal swing path). However please correct me if you disagree!

31-07-09, 04:31 PM	#35
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: bloooody suzuki parts hhhmm, that's interesting, basically to let the bearing move so as it's not using the same point of contact all the time... i thought that the whole point of a bearing was to have the force encompass the entire bearing thus spreading the load more evenly..

31-07-09, 05:02 PM	#36
svdemon Guest Posts: n/a	Re: bloooody suzuki parts Does sound slightly iffy to me! I wonder if the GSXR's are like that too?

31-07-09, 05:05 PM	#37
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: bloooody suzuki parts he never mentioned the GSXR or the busa funnily enough...

31-07-09, 05:07 PM	#38
Springbokki Guest Posts: n/a	Re: bloooody suzuki parts In the area of intentional loading yes, but you dont want to encourage a bending moment on the bearing which may cause twisting or uneven loading. If you fix the bearing then a bending moment may make it perform poorly, or break. Just basing this general engineering theories, however I dont even know what the bearings look like!

31-07-09, 05:36 PM	#39
svdemon Guest Posts: n/a	Re: bloooody suzuki parts They are needle roller bearings

31-07-09, 06:25 PM	#40
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,414	Re: bloooody suzuki parts How do you know if it's worn if it is designed to be loose

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