CARQUEST Patented Domed Cover Plate

Controlling the clearance between the ball stud and the bearing is extremely important, because excessive clearance or looseness can reduce the life of the part. The CARQUEST patented pressed-in cover plate design keeps the internal components consistently tight, holding clearances to near-zero lash for a longer period of time. Here's how it works: The cover plate starts off domed or in the shape of a cone, then it is pressed down flat into the housing. Its edges spread into a machined groove in the housing, where it securely grips, sealing against the inner wall of the housing. This technique allows for a consistent, tight part with minimal axial clearance or deflection, so the product lasts longer. 
 
 
In addition, the pressed-in cover plate offers these benefits:

• Eliminates excessive lash while allowing adequate assembly clearance, and controls component high-side tolerance "stackup" to prevent binding.
   
• Axial and radial deflection consistency is more precise than conventional closure methods.
  

	The cover plate is manufactured with a domed shape that flattens as it is pressed into the component.

	The cover plate being pressed into place during the manufacturing process.

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