On May 20, 2016, I
picked up one of the rollers from Whit and here is what I have found with some
Once I had it back at my shop, I proceeded to remove the cover plates.
The above pictures show the Exterior side of the axel, where the grease fitting
This particular grease fitting is missing the ball and the nipple, the spring was
still in the hole.
The wheel is 11-1/4" diameter.
It is important to know that the axel was only spot welded onto the cover plate.
Here are some pictures of the cutout in the door.
There were 4 thru bolts around the wheel that used standard metal conduit as
a spacer as that part was not touching the wood door.
NOTE: It would appear that these rollers were held onto the door with
only 8 bolts each. The only thing that kept the 1 ton of wood doors from
slipping down to the ground is the mortised cover plates.