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【单选题】

用三爪子拉拔器拆卸过盈量较大的滚动轴承时,宜用( )拆卸。

A.
冷拆法
B.
热卸法
C.
冷却法
D.
保温法
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参考答案:
参考解析:
.
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举一反三

【多选题】导致滚动轴承早期磨损的原因是()。

A.
润滑不良
B.
装配过紧
C.
装配过松
D.
装配在椭圆变形的轴颈上

【多选题】滚动轴承与滑动轴承相比,其优点是(  )。

A.
抗冲击能力强
B.
摩擦阻力小
C.
起动灵敏
D.
润滑简便
E.
高速时噪声低

【单选题】滚动轴承中有()存在。

A.
径向游隙;
B.
轴向游隙;
C.
径向、轴向两种游隙;
D.
无游隙。

【单选题】The Fisherman and the bearOne fine day, an old man was fishing and caught nothing. Finally, he gave up and walked back along the shore to his shack(窝棚). When he got close to the front door, he saw it ...

A.
It held the paw out over the water.
B.
The bear jumped and ran out of the door.
C.
He walked to the door quietly and looked inside.
D.
The bear was gone and had left six large fish for him.
E.
The bear often came to the old man's shack to get honey.
F.
Every time a fish jumped after his paw the bear hit it ashore.