Diversion or just sabotage? Dodgy 17" wheel conversion

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Nothing stamped anymore on that one that used to be in the hub :bang head:
It was 6004 by dimensions 20x42x12.

The wheel bearings are 6303 (17x47x14) brake and 6203 (17x40x12) drive side, both 17mm ID unlike the hub bearing that is the same Vmax' 20mm ID, hence the spacer pressed into the inner race.

The problem with stock d20mm axle is 40mm OD on the drive side. 20x40 bearing doesn't exist. The closest is 6904 which is too flimsy - 20x37x9.
The same 6004 or even 63004 (20x42x16) requires tricky wheel machining and can weaken the bearing housing with thinner walls.

It seems like I'm going to stuck with the high maintenance setup I have. The bearings are not a problem as they are general standard and any good brand have them not expensive at all unlike stock needle one.

My main concern is the bearing exposure. I'm going for a 5000 miles trip around Spain and Portugal in July. Can't imagine removing the rear wheel every now and then to check on the bearings.

I'm thinking of grooving an o-ring on the outside of the wheel drive side housing to seal the hub.

As per the spline - not sure. May be a cv boot on the spline outside and the hub (the last pic). There's about 7mm from the bevel gear crown top to the seal. Perhaps not enough for the boot clamp :ummm:
40mm OD on the drive side. 20x40 bearing doesn't exist. The closest is 6904 which is too flimsy - 20x37x9.
The same 6004 or even 63004 (20x42x16) requires tricky wheel machining and can weaken the bearing housing with thinner walls.
 
40mm OD on the drive side. 20x40 bearing doesn't exist. The closest is 6904 which is too flimsy - 20x37x9.
The same 6004 or even 63004 (20x42x16) requires tricky wheel machining and can weaken the bearing housing with thinner walls.
why do you say the bearing housing has thinner walls? especially since tricky machining is required... doesnt make any sense.
 

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