Pic from inside rear hub

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
fluff34567
registered user
Posts: 388
Joined: Tue Dec 20, 2016 2:27 pm
Location: Switzerland
Contact:

Can someone kindly take a pic of the hub splines from inside the rear hub...

I think mine are trashed but it's so universal it looks machined.
Scooterdude
registered user
Posts: 796
Joined: Sat May 28, 2016 4:51 pm
Main scooter: Lambretta LI 125 S3
Location: Skaville
Contact:

Google....images
fluff34567
registered user
Posts: 388
Joined: Tue Dec 20, 2016 2:27 pm
Location: Switzerland
Contact:

Scooterdude wrote:Google....images
99.999% are from outside, I checked already before asking.
User avatar
DigDug
registered user
Posts: 788
Joined: Wed May 02, 2012 1:00 pm
Main scooter: Lambretta
Location: Stroud
Contact:

Image

Google is your friend.. ;)
Did you have to do that?
User avatar
Monty
registered user
Posts: 472
Joined: Wed Jan 07, 2009 7:21 pm
Main scooter: Series 1 Muggy, Imola Special
Location: STOCKPORT
Contact:

am I missing something, the splines are parallel to each other so should be the same width on the inside as they are on the outside, all the worn hubs I have seen have had a step normally back from the front hub face as the lay shaft stops short. If I have misunderstood please forgive me as I know nowt
rosscla
registered user
Posts: 4823
Joined: Tue Oct 25, 2011 9:50 pm
Main scooter: Lambretta
Location: Lanarkshire
Contact:

If the hub has been loose the splines of the layshaft will eat into the hub splines, usually on the drive side. This will erode the spline and make them thinner until they give way and you loose drive. Once the splines have started to wear or show signs of it it's best to replace the hub.
"Our dilemma is that we hate change and love it at the same time; what we really want is for things to remain the same but get better."
User avatar
DigDug
registered user
Posts: 788
Joined: Wed May 02, 2012 1:00 pm
Main scooter: Lambretta
Location: Stroud
Contact:

Monty wrote:am I missing something, the splines are parallel to each other so should be the same width on the inside as they are on the outside, all the worn hubs I have seen have had a step normally back from the front hub face as the lay shaft stops short. If I have misunderstood please forgive me as I know nowt
I think you have the right of it.

I've a hub in my workshop which had the wrong cone fitted and it has the step in the splines that you described caused by the hub slopping around on the layshaft.
Did you have to do that?
fluff34567
registered user
Posts: 388
Joined: Tue Dec 20, 2016 2:27 pm
Location: Switzerland
Contact:

Mine has a step but looks machined hence the question. No real wear on the shaft.

Will have a look when cone etc is on.

Are the UNI hubs any good or is it better to go for a scootopia or Italian one?
gaz_powell
registered user
Posts: 1208
Joined: Sat Mar 28, 2009 1:10 pm
Location: hartlepool
Contact:

UNI are decent hubs
fluff34567
registered user
Posts: 388
Joined: Tue Dec 20, 2016 2:27 pm
Location: Switzerland
Contact:

Ta for info.
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: Ahrefs [Bot], Google [Bot] and 12 guests