BS EN 4538-003:2010
航空航天系列.低振幅下带自润滑班轮提升载荷的不锈钢制球形平面轴承.精密系列.尺寸规格和负载.低摩擦系数英制系列
Aerospace series. Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations. Narrow series. Dimensions and loads. Inch series with low friction coefficient