These spherical roller bearings are equipped with window-type cages of pressed sheet steel, glass-fibre reinforced polyamide or brass.

球面滚子轴承，这些配备了窗口式铁笼压钢板，玻璃纤维增强聚酰胺或铜。

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Up to medium size, cylindrical roller bearings are generally fitted with a cage of glass-fibre reinforced polyamide or a pressed sheet-steel cage.

直到中号尺寸，圆柱滚子轴承一般都配置一个玻璃纤维增强尼龙保持架或一个钢板冲压保持架。

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Pressed cages are almost exclusively made from sheet steel and sometimes from brass sheet.

冲压保持架几乎全是钢板制成，有时黄铜板材。

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