How Do I Know What Hubs I Have

steve

Try doing a search of trailer parts people if in WA Martin trailer parts have a list of axle sizes and hub sizes and bearing and seal sizes.......

Let your fingers do the walking.. is my moto... LOL

saves other people doing it for you.............

Regards

Richard

HNY

steve
Just after I bought my new Jayco camper in late 2000 I asked the dealer what bearings were in it. Jayco had no record and he said they could be Holden or Ford, I would have to remove them to get the part numbers to find out. So I wish you luck with your enquiry. From my experience your hubs will be the cheapest that Jayco could buy at the time.


teege

Pulling them out and get the bearing numbers is what I'd do.
But you can get a fair idea from the axle size.This guide may help.
eg:
39mm Round Axles - 750kg maximum operating weight. Runs LM (Holden) bearings.
40mm Square Axles - 1000kg maximum operating weight. Runs LM (Holden) bearings.
45mm Square Axles - 1400kg maximum operating weight. Runs SL (Ford) bearings.

I need to know this as well,

Found this info

FE - HR: PCD 5 on 107.95 mm (4.25"),
HK - HG: PCD 5 on 107.95 mm (4.25"),
HQ - WB PCD: 5 on 120.65mm (4.75"), Offset 30 mm Towards the inside of the rim for standard offset wheels.

Torana LJ/LC, LX/LH: PCD 5 on 107.95mm (4.25"). Same stud pattern as HK-HG.

Torana LH with option L34 and LX with option A9X: PCD 5 on 120.65mm (4.75") with -1/4" Offset. Same stud pattern as HQ-WB with a different offset.


Commodores use a 5 on 120 mm (4.724") PCD. Very close to the HQ - WB PCD but not close enough. If you put Commodore wheels on an old Holden (or vice versa), you will break your studs and be overtaken by your own wheel...not a good look.

What PCD do I have? The calculation for any five stud P.C.D. is from the centers of two of the closest studs divided by 0.58778 pretty hard to do by eye as Commodore an HQ are close, but if you have a vernier and measure from the outside of one stud to the inside of the next one is pretty accurate. To accurately measure your PCD. for 5 stud pattern. (in metric) measure as accurately as you can the distance between the centre of one stud to the center of the next closest stud, and then using a calculater divide that measurement by 0.58778 to attain your PCD. Be carefull to measure as accurately as you can because, for example, HQ is (close to 71mm) 70.915657 divided by 0.58778 = 120.65 (4.75") PCD. Commodore is (close to 70.5mm) 70.5336 divided by 0.58778 = 120.00 (4.724") PCD. To go from metric to imperial divide by 25.4.

When measuring the stud centres you could also measure to the outside of both studs and subtract one stud diameter.


The Stud sizes can also help

Holden HT - 7/16" UNF studs 5 stud - PCD 65mm from stud to stud

Holden HQ - 7/16" UNF studs 5 stud - PCD 72mm from stud to stud

Holden Commodore - 7/16" studs 5 stud - PCD ?

Ford - 1\2" UNF studs 5 stud - PCD 68mm from stud to stud

Landcruiser - 1/2" UNF studs 6 stud - PCD ?

Landcruiser 100 series - 9/16" UNF studs 5 stud - PCD

Steve, I have just replaced the axles on my tandem Sterling to give me more ride height, and on my 2008, Jayco had used 10" AL-KO hubs with Landcruiser 80 series 6 stud pattern. 1/2" UNF studs, PCD 139.7 mm 70mm between studs.

The axle profile was Slimline L.

If you go to the AL-KO webs site it will give you all the stub axles machine profile data to identify, along with bearing and seal PN's. Only way to be sure is to remove the hubs and measure them up.

If you Google 'stud patterns' this will provide quite a bit of information also.

I had a 16' Freedon before this and that was a 5 stud pattern with the Sunraysia wheels.

Good luck.