COLLAR PLANO 30mm. (AL)

Function and technical context

The 30 mm flat aluminum collar is an axial fastening and positioning element that works on axles, rods or tubes within the transmission, steering or drive systems of motor boats. Its main function is to fix the longitudinal position of a rotating or sliding component, preventing unwanted movements that could compromise the alignment of the assembly. Being made of aluminum, it offers excellent resistance to marine corrosion while reducing the overall weight of the assembly, making it a common choice in nautical applications where exposure to salt water and humid environments is constant. A collar in poor condition or with excessive play can cause abnormal vibrations, premature wear of adjacent components or even loss of control in steering and propulsion systems.

When to replace this part?

The most common symptoms that indicate that a flat collar needs to be replaced are the appearance of visible axial play in the shaft, vibrations or rattles that did not exist before, and localized friction or corrosion marks in the contact area. It is recommended to inspect the collar at each seasonal maintenance, paying special attention to the tightening of the set screw and the surface condition of the aluminum, as galvanic corrosion can silently weaken it. Replacing it preventively at the slightest sign of wear prevents more costly failures in the shaft or associated bearings, especially if the boat operates in salt water.

Compatibility