yes they are wrencher, otherwise known as B01 and B52 ... the ones I listed above are the only thing anyone's come up with here for rollers - although the bearing shop I checked with shows them different dimensions than the original ball bearings

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics