I put a lot of effort into sourcing these bearings at a price that makes sense. Torrington Brand! They’re the same drawn‑cup, full‑complement needle bearings as a B‑78, just with the added oil hole. And just as a heads‑up — drilling an oil hole into a standard B‑78 isn’t a good idea. There’s really no clean way to do it without damaging the race.
 
Shaft: 0.4375-0.4370"
Bore: 0.6245-0.6255"
Width: