Two-way pressure has mounted on ball bearings between the shaft and two outer rings, in the middle ring and outer ring were added between the steel ball, able to withstand the two-way axial load.

双向压力球轴承有安装于轴上的中间圈和两个外圈，在中间圈与外圈之间分别加有钢球，能够承受双向轴向负荷。

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The profiles are calculated in such a way that, under normal load conditions, life-reducing edge stresses do not occur at a tilting angle of up to 4' between inner ring and outer ring (Table 5.2).

通过这种方式计算的轮廓，在正常的载荷情况下，内外圈之间的偏斜角度超过4＇时不会发生缩减寿命的边缘应力（表5.2）。

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The limits are valid for bearings before mounting under zero measuring load, and with no axial displacement of one ring relative to the other.

在测量负荷为零、而且一个套圈相对于另一套圈无轴向位移的情况下，这些限值对安装前的轴承有效。

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