In my (humble) experience, the roller bearing will carry far more load than an equivalant sized spherical ball bearing, but its limiting function is it's ability to sustain high revs.
I'm pretty sure that the IMS bearing revolves at crankshaft speed (up to 7,200rpm), so some of our more qualified members might like to comment on this new style of bearing.....
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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