bead seat taper


Dictionary of automotive terms. 2015.

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  • rim bead seat taper — The narrowing of the rim width towards the rim well. The taper must be designed to lock the tire to the rim and provide a good seal; well base rims for passenger cars have a 5° taper, those for commercial vehicles have a 15° taper; flat base rims …   Dictionary of automotive terms

  • seat taper — See bead seat taper rim bead seat taper …   Dictionary of automotive terms

  • bead seat — The portion of the wheel rim below the rim flange providing radial support to the bead of the tire. See also rim bead seat taper rim bead seat safety bead seat …   Dictionary of automotive terms

  • seat — [1] A surface upon which another part rests or seats. Example: valve seat is matched surface upon which valve face rests. [2] Minor wearing of the piston ring surface during initial use. Rings then fit or seat properly against the cylinder wall.… …   Dictionary of automotive terms

  • taper — A gradual narrowing in size of a long round object toward one end. See advanced rim taper base rim taper bead seat taper center rim taper drop center rim taper flat base rim taper intermediate rim taper rim bead seat taper …   Dictionary of automotive terms

  • bead — [1] The portion of a tire which fits onto the rim of the wheel. On a tubeless tire, the contact of the bead with the rim seals the air into the tire. Bead heel, bead sole, and bead toe form a foot like shape. Also see tire bead. [2] A small ball… …   Dictionary of automotive terms

  • flat base rim taper — An obsolete form of rim with no taper at either bead seat …   Dictionary of automotive terms

  • intermediate rim taper — A rim with one tapered bead seat of 5° at the fixed flange …   Dictionary of automotive terms

  • rim well — The portion of the rim with a substantially smaller diameter than the bead seats and located with sufficient depth and width to enable the tire beads to be forced over the mounting side of the rim flange and bead seat taper for installation or… …   Dictionary of automotive terms

  • rim well base — The portion of the rim with a substantially smaller diameter than the bead seats and located with sufficient depth and width to enable the tire beads to be forced over the mounting side of the rim flange and bead seat taper for installation or… …   Dictionary of automotive terms

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