When identifying a Torrington bearing, locating the blue stripe should easily determine if the bearing belongs to this family. INA bearings use a black stripe.
In addition, Torrington uses a rolled wedding band to hold the enclosed bearings together. INA will have three or four crimps to hold the outer races together.
A final way to identify the bearing you’re are working with is to check what type of roller cages are included. Torrington uses a two piece pocket cage, while INA uses a “Z” cage.
Keep this simple criteria in mind, and identification should not be an issue.
– Found in July 2008 Newsletter