Continued from p.701 M.E.4730 November 17
Main bearing standards
The four main bearings are split bronze shells carried in steel standards which are themselves held in position on the bed plate by M5 studs, nuts and 1/8 inch steel dowels.
The bronze bearing halves are flanged to slide onto the standards and are retained by a steel cap bar. Shim washers can be used on the cap bar studs to provide adjustment to the bearing shells when necessary. The cap bars are drilled and tapped in the centre for a standard 3/16 x 40 inch pipe union for the oil feed and the underside of this hole is counterbored for an O-ring seal.
The four standards are made from ½ inch steel stock and were initially machined to their overall…
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Model Engineer (Digital) - 1 Issue, Issue 4731