FRONT HUB

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DIFFERENCE BETWEEN THE 10 inch and 12 inch FRONT HUBS .

DIFFERENCE BETWEEN THE FRONT HUB FITTED TO THE EARLIER 10 INCH WHEELED ROBIN / RIALTO MODELS AND THE FRONT HUB FITTED TO THE LATER 12 INCH WHEELED ROBIN / RIALTO MODELS .

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FRONT HUB FITTED TO THE EARLIER 10 INCH WHEELED ROBIN / RIALTO MODELS

APPROX DIMENSION OF THE PART WHICH FITS THROUGH THE WHEEL CENTRE ; 64.65 mm

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FRONT HUB FITTED TO THE LATER 12 INCH WHEELED ROBIN / RIALTO MODELS

APPROX DIMENSION OF THE PART WHICH FITS THROUGH THE WHEEL CENTRE ; 61.90 mm

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The Roller Bearing type Front Hub on the 10 inch wheel setup is the same as the Roller Bearing type Front Hub on the 12 inch wheel setup except for ;

The part of the hub that fits through the wheels is larger on the 10 inch wheel version compared to the 12 inch version .

The hole in the centre of the 12 inch wheel is smaller than the hole in the 10 inch wheel .

If you have a spare 10 inch Front hub it is easily modified to fit the 12 inch wheel .

Both hubs have the same cast in part numbers .

HOW TO CONVERT A 10 INCH WHEELED HUB TO FIT A 12 INCH WHEEL

{ 1 } With the hub removed from the vehicle , fit a wheel nut on a stud and knock or press the stud out .

Do the same for the other 3 wheel studs .

{ 2 } Take it to a machine shop to get them to turn it down

or

* NOTE ; DO NOT ATTEMPT THE FOLLOWING UNLESS YOU KNOW WHAT YOU ARE DOING .

I TAKE NO RESPSIBILITY IF ANYONE ATTEMPTS THE FOLLOWING .

{ 3 } * If you are competent it is an easy job to grind and file it down to fit .

Check frequently that it fits into a 12 inch wheel as you go along .

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FRONT HUB TAPER ROLLER BEARINGS

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LARGE BEARING CUP & CONE SET ; IMPERIAL

BEARING L44649 + CUP L44610

DIMENSIONS ..... IMPERIAL ........... METRIC

INSIDE DIAMETER ; .. 1.0625 inch .............. 26.99 mm

INSIDE DIAMETER ; .. 1.198 inch ................ 50.29 mm

WIDTH ; ..................... 0.56 inch .................. 14.22 mm

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SMALL BEARING CUP & CONE SET ; IMPERIAL

BEARING LM11749 + CUP LM11710

DIMENSIONS ..... IMPERIAL ........... METRIC

INSIDE DIAMETER ; .. 0.6875 inch .............. 17.46 mm

INSIDE DIAMETER ; .. 1.57 inch .................. 39.88 mm

WIDTH ; ..................... 0.545 inch ............... 13.84 mm

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