bearing circle

bearing circle

[′ber·iŋ ‚sər·kəl]
(engineering)
A ring designed to fit snugly over a compass or compass repeater, and provided with vanes for observing compass bearings.
References in periodicals archive ?
The notation d is for the diameter of the bearing circle of the nut.
8mm) and the generators inclined with an angle of [alpha] = 24[degrees], starting from the diameter of the bearing circle of the nut (d = 18.