套圈材料采用高纯净(电渣重熔)轴承钢，配合特殊的热处理工艺，冷处理工艺以及材料改性技术，使得该系列轴承疲劳寿命大幅度提高。
接触角分15°和25°，成对使用可承受轴向负荷和径向负荷或合成负荷。
保持架有两种:外圈引导的酚醛树脂夹布胶木保持架和滚动体引导的尼龙保持架可根据不同用途来选用。
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