Abstract: A crankshaft bearing cap in a shape of a half-cylinder of axis X coinciding with the axis of the crankshaft and including diametrically opposed attachment pillars, each column-shaped pillar including a substantially oval upper surface incorporating a bearing surface surrounding a borehole through which a fixing screw can pass and a bearing surface for a screw head, the surface surrounding the borehole, and each attachment pillar further including at least two lateral and vertical grooves over a portion of the height of the pillar, the grooves being situated outside a vertical bearing cylinder having a base equal to the bearing surface and outside of a volume defined by the transverse plane passing through the axes of the attachment holes and extending symmetrically in the X-direction over a length.

Abstract: A crankshaft bearing cap in a shape of a half-cylinder of axis X coinciding with the axis of the crankshaft and including diametrically opposed attachment pillars, each column-shaped pillar including a substantially oval upper surface incorporating a bearing surface surrounding a borehole through which a fixing screw can pass and a bearing surface for a screw head, the surface surrounding the borehole, and each attachment pillar further including at least two lateral and vertical grooves over a portion of the height of the pillar, the grooves being situated outside a vertical bearing cylinder having a base equal to the bearing surface and outside of a volume defined by the transverse plane passing through the axes of the attachment holes and extending symmetrically in the X-direction over a length.