Novak's Ceramic Ball Bearing ABEC-5 (1/8”I.D. x 3/8”O.D. x 5/32”W) [#5935] includes high-performance Si3N4 ceramic balls. It fits most 540-size brushless and brush motors. This bearing is an optional rear bearing for the following Novak motors:
Ballistic Racing
Ballistic Spec
Ballistic 550
SS Pro Spec
Rock Star Crawling
Fifty Five / Forty-Five Crawling
Velociti / Velociti Light
HV Pro 550