围绕耳轴轴颈(22)旋转自如地嵌合的滚柱盒(3)具有滚柱(31)、内圈(32)、夹持在滚柱(31)和内圈(32)之间的多个针状滚子(33)。

Roller cassette (3) that fits over the trunnion journal (22) for rotation has a roller (31), inner ring (32), and multiple needles (33) interposed between the roller (31) and the inner ring (32).

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