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2019-03-04View Original

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Reply #22019-03-04

Reply #32019-03-04

["每日一题泵设备""简答题规则： 1、回答不对给予积极参与+财富，回答有一定道理但是不够具体对给予+财富，回答符合给予8财富。 1、回答奖励每人限一次。 2、每个回复限评分一人次。 4、回复后可见答案及答案解释。 5、奖励在48小时内有效，逾期不予奖励。

Reply #42019-03-04

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Reply #52019-03-04

"又拿奖奖励天天逛逛在某泵图样上，滚动轴承一栏标记为 ""DB" "，其含义是什么？ �答案： 5"单列角接触球轴承，外径"51mm " "内径"51mm " "宽度"55mm； B" "轴承接触角为4"度" "接触角越大，承受轴向方向载荷能力越大）"； B" "两个单列轴承背靠背安装" "面对面安装DF，串联安装DT"

Reply #62019-03-04

"角接触球轴承，内径55mm"

Reply #72019-03-04

"背靠背成对双联角接触球轴承"

Reply #82019-03-04

"角接触球轴承。轴承厚度：58mm " "轴承内径：55mm " "轴承外径：15mm"

Reply #92019-03-04

"背靠背角接触球轴承"

Reply #102019-03-04

"角接触球轴承"尺寸系列代号"内径55mm "B"轴承接触角为4"度" B "背靠背安装"

Reply #112019-03-04

"31接触球轴承"轴承型号是5311B"DB"轴承

Reply #122019-03-04

轴承系列：角接触球轴承

Reply #132019-03-04

单

Reply #142019-03-04

内径55mm "B"轴承接触角为4"度" B"背靠背安装"

Reply #152019-03-04

"3"单列角接触球轴承"外径"5"5mm" "内径"5"55mmmm" "外径"5"51mm" "厚度"5"58mm"

Reply #162019-03-04

"内径"5"角接触球" "轴承4度" "背靠背安装"

Reply #172019-03-04

"3"3311B"DB"轴承" "轴承系列：内径"5"55mm" "B"轴承接触角为4"度" "DB"两个单列轴承背靠背安装"

Reply #182019-03-04

"背靠背角接触球轴承"

Reply #192019-03-04

"角接触球轴承"尺寸系列代号"内径"5"55mmmm" "B"轴承接触角为4"度" "DB"背靠背安装"

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