Author Topic: New rear hub design .  (Read 4716 times)

0 Members and 1 Guest are viewing this topic.

Offline RoddyMac

  • Hero Member
  • *****
  • Joined: Nov 2013
  • Location: Vancouver, BC
  • Posts: 544
Re: New rear hub design .
« Reply #30 on: Thursday,May 23, 2019, 08:32:28 AM »
Wow!  That's a little on the spendy side of things, roughly $4550.00 USD for a pair. 

And, I'm surprised they are using 5052.  I would have thought 6061 would be the preferred alloy as it's heat treatable. 
« Last Edit: Thursday,May 23, 2019, 08:35:44 AM by RoddyMac »

Offline BDA

  • Super Member
  • *******
  • Joined: Jul 2012
  • Location: North Carolina
  • Posts: 9,983
Re: New rear hub design .
« Reply #31 on: Thursday,May 23, 2019, 08:33:35 AM »
JB - Thanks. I look forward to your write up!

D'man - at $4500+, I think I'll pass. They are pretty, though.

Offline dakazman

  • Super Member
  • *******
  • Joined: Jun 2016
  • Location: Florida
  • Posts: 4,224
Re: New rear hub design .
« Reply #32 on: Thursday,May 23, 2019, 08:49:48 AM »
 :FUNNY:e
I didn’t do the conversion. OMG 😮
I haven’t got that much in total on mine yet.
Dakazman

Offline BDA

  • Super Member
  • *******
  • Joined: Jul 2012
  • Location: North Carolina
  • Posts: 9,983
Re: New rear hub design .
« Reply #33 on: Thursday,May 23, 2019, 08:56:53 AM »
I think that's a pretty good indication of just how Europa-crazy the Japanese are!

Offline LotusJoe

  • Twink Driver
  • Administrator
  • Super Member
  • **
  • Joined: Apr 2012
  • Location: Southern California
  • Posts: 940
  • Forum Administrator
    • LotusEuropa.org
Re: New rear hub design .
« Reply #34 on: Thursday,May 23, 2019, 09:20:38 AM »
Hi,

Sorry for the late contact!

I received a reply today and I passed it on completely below.
I also conveyed an invitation to our site and interests.

In the case of lotus europa sp rear upright,
 The production is requested to a company that produces Honda's formula one vehicle, prototypes of HRC such as Motogp, etc.
 The data of lotus europa sp genuine upright is generated by a three-dimensional measuring device, and after data correction, the material is A5052 and is cut by a 5-axis processing machine and finally finished by hard alumite.  .

 It is a price, but it will be 500000 yen (excluding tax) with the left and right set in Japanese yen.

Regards,
GARAGE TOPYARD,

That's $4,562.02 just in case anyone was curious !!
Joe Irwin
3927R TC Special
(The Classic Barn Find)


Offline Certified Lotus

  • Super Member
  • *******
  • Joined: Aug 2016
  • Location: Princeton, NJ
  • Posts: 1,690
Re: New rear hub design .
« Reply #35 on: Thursday,May 23, 2019, 09:53:11 AM »
Just as I thought, made on a C&C machine. The first one is always expensive due to engineering input into the computer (although a laser would copy an original fairly quickly). After that they can knock these out fairly quickly with only machine time and then threading for the bolts. Couple of sacrificial prototypes to adjust the details and then full production.

Offline jbcollier

  • Super Member
  • *******
  • Joined: Nov 2013
  • Location: Edmonton, Alberta, Canada
  • Posts: 5,966
Re: New rear hub design .
« Reply #36 on: Thursday,May 23, 2019, 10:09:44 AM »
Kelvedon sells them as well at £645 per side.  Not cheap!  But much cheaper than the Japanese ones.  Kelvedon also sells new cash radius arms with a removeable side plate so you can remove the upright complete without having to pull the spindle.

Offline dakazman

  • Super Member
  • *******
  • Joined: Jun 2016
  • Location: Florida
  • Posts: 4,224
Re: New rear hub design .
« Reply #37 on: Thursday,May 23, 2019, 04:56:26 PM »
JB, I can’t wait for your upright mod . The spacer your picture shows a beast compared to what’s installed in an s1 and s2 . Dave bean parts book has a good guide on rebuilding them. I will need to measure them for the 2 1/8 nominal call for .
 What part did you sleeve on your upright? Are you using the same inner and outer bearings, seal and slinger?
Dakazman

Offline jbcollier

  • Super Member
  • *******
  • Joined: Nov 2013
  • Location: Edmonton, Alberta, Canada
  • Posts: 5,966
Re: New rear hub design .
« Reply #38 on: Friday,May 24, 2019, 06:29:51 AM »
The bearing bores on the upright were oversized and steel sleeves pressed in.  With the change in yokes, no seal or slinger.

Offline dakazman

  • Super Member
  • *******
  • Joined: Jun 2016
  • Location: Florida
  • Posts: 4,224
Re: New rear hub design .
« Reply #39 on: Friday,May 24, 2019, 07:02:35 PM »
Now I see it.
Will it work with drum brakes or just rear disc brakes?  I have some time before I start going down a modified system but I’ll keep waiting.
Dakazman

Offline jbcollier

  • Super Member
  • *******
  • Joined: Nov 2013
  • Location: Edmonton, Alberta, Canada
  • Posts: 5,966
Re: New rear hub design .
« Reply #40 on: Friday,May 24, 2019, 09:29:31 PM »
It will work with the stock drum brakes, or any disc kit meant for the Europa.