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107:(or A-arm) suspension. The mechanics of the suspension allow the axle to move up and down (and the wheel to turn in order to steer the vehicle), and the axle bearings must allow the rotational axis of the axle to change without binding. This is a simple concept that illustrates a possible application of a spherical bearing. In fact, spherical bearings are used in smaller sub-components of this type of suspension, for example certain types of
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or mechanical construction. A spherical bearing by itself consists of an outer ring and an inner ring and a locking feature that makes the inner ring captive within the outer ring in the axial direction only. The outer surface of the inner ring and the inner surface of the outer ring are spherical
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bearings in mills and machine shops. For long shafts it was impossible to accurately align bearings, even if the shaft was perfectly straight. Nasmyth used brass bearing shells between hemispherical brass cups to allow the bearings to self-align.
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that permits rotation about a central point in two orthogonal directions (usually within a specified angular limit based on the bearing geometry). Typically these bearings support a rotating shaft in the
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and are collectively considered the raceway and they slide against each other, either with a lubricant, a maintenance-free (typically
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or PTFE) based liner, or they incorporate a rolling element such as a race of ball-bearings, allowing lower friction.
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of the inner ring that must move not only rotationally, but also at an angle. It can either be a
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Bearing that allow limited angular rotation orthogonal to the shaft axis
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Pages displaying short descriptions of redirect targets
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Pages displaying short descriptions of redirect targets
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Self-aligning spherical bearings were first used by
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