ISO 12240的本部分规定了推力球面滑动轴承的尺寸和公差。 在进行任何涂层或电镀之前，规定的公差值适用于成品推力球面滑动轴承。 推力球面滑动轴承无需符合图示设计，但需要符合规定的尺寸和公差。 注:用于机身应用的推力球面滑动轴承不包括在ISO 12240的本部分中。

This part of ISO 12240 specifies dimensions and tolerances for thrust spherical plain bearings. The specified tolerance values apply to finished, thrust spherical plain bearings before any coating or plating. Thrust spherical plain bearings need not conform to the design illustrated but compliance is required as regards dimensions and tolerances specified. NOTE — Thrust spherical plain bearings for airframe applications are not covered by this part of ISO 12240.