Rivarossi was the only one to use them regularly like this as far as I know. From the history I read, Rossi was kind of a perfectionist and wouldn't be satisfied in the earlier years until the motor performance was as consistent as possible, and he achieved that with the ball bearings. Darth Santa Fe, doing weird and challenging projects for the fun of it!
Country: USA ~
Posts: 248 ~
Member Since: September 13 2011 ~
Last Visit: January 23 2025