Device for connecting mechanical parts with axial clearance

A connecting device for connecting together two separate mechanical parts, said device comprising:

• a rod having a longitudinal axis (X-X) and comprising a section configured to be inserted at least partly into aligned clevises of said mechanical parts, said section extending between an axial stop and a threaded portion of the rod,
• a nut configured to be screwed onto said threaded portion of said rod so as to hold said two mechanical parts between said axial stop and said nut, and
• an anti-rotation system configured to block the nut from rotating, said anti-rotation system comprising:
• a washer mounted around said rod and having a shape complementary with said rod such that said washer is configured to be rotationally secured to said rod, said washer comprising at least one protuberance extending inwards with respect to said longitudinal axis (X-X), the at least one protuberance being engaged in a notch of a complementary shape in said rod, and
• a ring mounted around the nut, said ring comprising an internal periphery complementary in shape to that of an external periphery of said nut so that said ring is secured in rotation to said nut,
• wherein said anti-rotation system further comprises a screw which is configured to ensure that said ring and said washer are secured axially in rotation,
• said ring further comprising:
• an axial slot configured to minimize a mounting clearance on said nut,
• two circumferential ends which are located on opposing sides of said axial slot, each of said circumferential ends extending into an attachment tab, each tab comprising a central orifice for the passage of said screw, said washer comprising a protrusion configured to be interposed between said tabs, said protrusion comprising an orifice for the passage of said screw.