| 摘要 |
Each drum (5,6,28) of the counter is carried by a shaft (16,26,35) pivoted on the frame (1,2,3,4,11,12) by a bearing (18,19,27,36) which is autolubricating. Each bearing comprises a cylindrical part (52) in synthetic resin presenting a cylindrical median internal surface (53) intended to receive a pivot of the shaft (16,26,35) and two conical surfaces (54,55) widening from the median cylindrical surface (53) toward the frontal surfaces of this part (52).
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