Aim of a bevel gearbox is to transmit power through shafts being orthogonal to each other; for this reason the gears, shafts and bearings are designed to transmit power and torque.
Casings bevel gearboxes can have a cubic base form (BC series), and have all six completely machine finished outer faces and varnished inner parts.
Bevel gearboxes protruding shafts are made of carbon steel bearings are used the full range of materials and brand trading.