How Do I Know What Hubs I Have

Submitted: Saturday, Jan 02, 2010 at 02:34
ThreadID: 74806 Views:13244 Replies:5 FollowUps:4
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Hi all,

just a quick question which may seem dumb to some or most or it may have been asked and answered before (i did try to search for it.......honest)

but how do i work out what hubs i have? my van is a Jayco Freedom 2001 poptop 17' and it has the 6 stud sunraysia's single axle.

sorry for the question if it has been asked already :|

cheers
steve
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Reply By: Richard Kovac - Saturday, Jan 02, 2010 at 02:50

Saturday, Jan 02, 2010 at 02:50
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
AnswerID: 397276

Reply By: Member - Teege (NSW) - Saturday, Jan 02, 2010 at 07:27

Saturday, Jan 02, 2010 at 07:27
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
AnswerID: 397279

Reply By: Member - Phil G (SA) - Saturday, Jan 02, 2010 at 09:25

Saturday, Jan 02, 2010 at 09:25
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.
AnswerID: 397286

Reply By: outsider - Saturday, Jan 02, 2010 at 11:32

Saturday, Jan 02, 2010 at 11:32
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

AnswerID: 397297

Follow Up By: Member - Brian A (NSW) - Saturday, Jan 02, 2010 at 12:15

Saturday, Jan 02, 2010 at 12:15
outsider,

not sure whether you realise, that PCD stands for Pitch Circle Diameter. That is, the diameter of a circle that goes through the centre of the studs.

eg - "FE - HR: PCD - 5 bolts on 107.95 mm - diameter circle (4.25"),"

If this is already understood - my apologies.

Brian
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Follow Up By: outsider - Saturday, Jan 02, 2010 at 13:35

Saturday, Jan 02, 2010 at 13:35
Good point brian, Probably best to clear that up for those who don't know.
I'd say you are referring to the last part of the post with the stud sizes, I plagiarized that along with the other information from another site and the use of "PCD" there is incorrect, The measurement given would be from adjacent studs.
I didn't take much notice of that as i was looking at the stud sizes.


Any way from that info I now know that I have ford hubs on my boat trailer and HT hubs on my campervan and box trailer. The spare unmarked hub I found in the shed is a HT hub also.

note...
Ford hubs are 114.3mm pcd
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Follow Up By: Member - Scrubby (VIC) - Saturday, Jan 02, 2010 at 22:04

Saturday, Jan 02, 2010 at 22:04
Outsider,
G`day and thanks for that info.
I am not sure you are correct when you say that Landcruiser is 1/2" UNF .
I reckon they are METRIC as all other threads on my old 60 are metric and the wheel nuts have 12 x 1.5 stamped on them. I know that the 1/2" UNF from the c/van wont fit the cruiser and vice versa.

Cheers mate,
Scrubby.
I don`t know where i`m going but i`m enjoying the journey.

Member
My Profile  My Blog  My Position  Send Message

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FollowupID: 666209

Follow Up By: outsider - Saturday, Jan 02, 2010 at 22:37

Saturday, Jan 02, 2010 at 22:37
Scrubby,
Yer I dunno mate, I just posted the information that i found.
Had a quick look and found some more info that explains why that is along with some more hub sizes.

"Please note that these are not genuine automobile studs. They are Trailer Industry standard"

HUB INFORMATION
MODEL STUDS P.C.D STUDS CENTRE - CENTRE
HOLDEN HT 5 X 7/16" STUDS 107.5mm 63mm
HOLDEN HQ 5 X 7/16" STUDS 120.5mm 71mm
COMMODORE 5 X 7/16" STUDS 120mm 70.5mm
FORD FALCON 5 X 1/2" STUDS 114mm 67mm
FORD 4 STUD 4 X 1/2" STUDS 108mm 76mm
FORD F100 5 X 1/2" STUDS 140mm 82mm
LAND CRUISER 6 X 1/2" STUDS 140mm 70mm 6 stud
NISSAN 6 X 1/2" STUDS 140mm 70mm
LAND CRUISER 5 X 9/16" STUDS 150mm 88mm 5 stud 100 series
LAND ROVER 5 X 5/8" STUDS 165mm 97mm
MINI 4 X 7/16" STUDS 101.5mm 72mm
JAP 4 STUD 4 X 7/16" STUDS 114.3mm 81mm
BMW 4 X 7/16” STUDS 100mm 71mm Nose turned down
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FollowupID: 666211

Reply By: johntoyo - Saturday, Jan 02, 2010 at 18:47

Saturday, Jan 02, 2010 at 18:47
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.
AnswerID: 397333

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