1 1/4 FLAT COLLAR

Function and technical context

The 1 1/4" flat collar is a fastening and positioning element that acts as a fixing point or axial stop within the mechanical or transmission assembly in which it is integrated. Its flat geometry allows the load to be distributed evenly over the contact surface, avoiding premature wear of the adjacent parts and guaranteeing the correct alignment of the shaft or component it embraces. When this type of collar deteriorates or loses its fit, unwanted play may appear in the shaft, abnormal vibration or even progressive damage to the components. adjacent, compromising the integrity of the complex.

When to replace this part?

The most common symptoms that indicate wear or failure of a flat collar are the appearance of excessive axial play, vibrations or metallic noises in operation that did not exist before, and visible friction or deformation marks on the inner surface of the collar or on the shaft. It is recommended to inspect this component during each seasonal maintenance or whenever work is done on the transmission or fastening assembly to which it belongs. Replacing it preventively if there is any sign of wear prevents major breakdowns that are much more expensive to repair, especially when the boat is underway.