试题与答案

怎样检查滚动轴承的好坏?

题型:问答题 简答题

题目:

怎样检查滚动轴承的好坏?

答案:

参考答案:

(1)滚动体及滚道表面不能有锈斑、裂纹、凹痕、剥落、重皮等现象;

(2)转动灵活,用手转动后应平稳,并逐渐减速停止,不能突然停下,不能有振动;

(3)隔离架与内外圈应有一定的间隙,可用手径向隔离架试验;

(4)用铅丝(塞尺)测量,游隙合适,数值符合技术标准。

试题推荐
题型:补全对话,情景问答

根据情景,选择恰当选项。

1. 当你爸爸过生日时,你应该对他说:[ ]

A. Happy New Year!

B. Happy birthday to you!

C. Happy Women's Day!

2. 当你想知道今天是几号时,你应该问:[ ]

A. What's the time?

B. What's the date today?

C. What's the weather like today?

3. 你的朋友想知道你的体重,他应该问: [ ]

A. How heavy are you?

B. How tall are you?

C. How old are you?

4. 当某人跟你说谢谢时,你应该说:[ ]

A. That's great.

B. You're welcome.

C. Sure. Here you are.

5. 当有人问你爸爸长得什么样时,他应该问:[ ]

A. What's your father like?

B. What does your father like?

C. What does your father do?

查看答案
微信公众账号搜索答案