Rim center pilot hole size for 7K axle?

JIMNLIN wrote:
Truck bearings are made to take running 24/7 and hundreds of thousands of miles with off set automotive wheels and trailer axles bearings are not. Its just that simple.
I've tried 8 lug automotive wheels on my equipment trailers. These trailers were on the road 24/7...for hours at a time. It didn't take long (8k-10k)for the trailers bearing to whip out.
I also had a driver decide he wanted 16" 6 lug OEM fancy chevy wheels on the trailer he leased from me which had the same lug circle diameter/hole size as the trailers axles. I warned him what could happen and sure enough he call me from his motel in Walsenburg CO saying he was down replacing ruined trailer bearings and did I save the OEM trailer wheels from that trailer.

Once you get your axle (brand) the actual clearance diameter comes from it. I wouldn't trust the dimensions from my Rockwell American axles if your going with Dexter axles or another brand. I also would give the trailer axle mfg a buzz and see what they think of automotive truck wheels on their axles.

I would buy a set of bearing and keep them handy especially if this trailer will see lots of road miles.

Thanks JIMNLIN..

I found that my dodge rim has a 4.77 pilot hole, so there's a good chance trailer rims off a 7K axle are the same size. But instead of running truck rims/tires on the trailer, I think a better idea would be to use the trailer spare as a spare for both the truck and trailer since running less offset trailer rims on the truck temporarily until I fix the flat, is more wise than running offset truck rims on the trailer.. Especially after hearing about your first hand experience..

Problem is, no one makes 17" trailer rims meaning I would have to replace the rims on the truck to run the same tires all around.