Roller bearings must be cheaper to produce than ball bearings. I have to think chopping a long rod into pieces is easier than making a perfect sphere. I've always thought that's the reason behind the shift to rollers.
Last edited by Wally / Montana; 07/22/2021 2:56 PM.
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.