Radial Contact design, recessed inner raceway with 7 ball bearing compliment. Designed to replace rear (thin) bearing of Workhorse 757 and Turbo+ 557 Handpieces by Lares Research.
These are a 7-ball design for maximum radial support (angular contact bearings are not recommended. where front and rear bearings are mounted close together). Inner raceway is recessed to accomodate chucking mechanism.Width of inside ring .063" (1,6mm). Width of outside ring .075" (1,91mm).
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