Pressure on the ball bearing outer ring with a flat seat type, aligning seat type and seat type with a self-aligning washers.
压力球轴承外圈有平面座型、调心座型和带调心垫圈座型。
Ball joint housing is an outer ring of radial spherical plain bearing, made of zinc base alloy.
球头座为向心关节轴承的外圈，由锌基合金制成。
Outer ring groove of curvature of the center and bearing center consistent, so with automatic self-aligning ball bearing the same tone heart function.
外圈滚道面的曲率中心与轴承中心一致，所以具有与自动调心球轴承同样的调心功能。
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