第一百一十一章 滚动轴承
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李植一个个手把手指导，从头到尾指导工匠们打造轴承。
首先是铸造钢环，这倒是简单，用沙子做好模具浇铸钢水便成形了。不过为了减少钢件上的气孔蜂窝，李植让铁匠们利用铸造出来的钢环反过来做铁模具，然后再用铁模具铸造钢环。
接着将一根圆形钢棍烧红烧软，抵到一个简易截料器上截出一小段一小段的钢料，作为滚珠的原材料。
把滚珠的原材料一桶一桶地放到一个炉子里加热烧到红热后，将原材料一颗颗取出来，放到一个留有半圆孔的钢块上，用棍头同样留有半圆孔的钢质棍子抵在滚珠原材料上，用锤子锤钢棍，把原材料挤压成球形。
得到粗糙的滚珠后，将滚珠用多个滚珠筛子筛选滚珠，除去太大或太小的滚珠。然后用砂轮和磨盘给滚珠去毛刺抛光。得到光滑的滚珠后将滚珠回火加热，最后倒入烧温的油中淬火，提高滚珠的硬度。
滚珠做好后，将滚珠排成一排放进轴承外圈中，将轴承内圈安上后，把滚珠滑到不同的位置，滚珠和内外圈就联成一体，不会掉下来了。
最后用铁皮做保持架，用钢钉固定，从两边包住滚珠，让八个滚珠均匀分布在钢圈里面，不会碰撞摩擦。
李植一个工序一个工序的指导不同的铁匠们，制造工具操作生产，最后用了十五天的时间，做出了这个时代的第一个滚动轴承。
李植给轴承加了点油，把轴承套在手上用力一转，那轴承转了四、五圈，停下来了。
看到轴承最后的效果，铁匠们都十分惊奇。那匠头吴铁头说道：“操守大人，这个圈子能自己滚这么多圈，好光滑！大人，这是做什么用的？”
李植没有回答吴铁头的话，在那里琢磨这轴承怎么不好使？居然只能转四、五圈？虽然这已经比没有轴承的好多，但显然李植设计的轴承不该是这样的效果。想了想，李植觉得大概是轴承的内外圈太粗糙了，摩擦系数太高导致滚珠转了几圈就停下来了。
看来轴承的内外圈轨道也要精抛光。
李植又给整个生产加了一个工序——内外圈轨道抛光——钢环铸造好后，用上好的瓷土砂轮和精钢磨盘打磨毛刺，抛光轨道。
又花了三天，李植带领铁匠做好了抛光的工具，抛光了滚珠的轨道。
重新做好了轴承，上好油，李植抓在手上用力一转。那轴承这次没有停下来，转呀转呀转了好久，起码转了十几圈，这才慢慢停了下来。
这样的轴承已经能满足李植的使用了，李植很满意。
心里高兴，李植大声说道：“轴承制造成功，十名工匠每人发三两银子赏银！”
工匠们喜出望外，一个个大声说道：“大人恩德！”
“大人太豪气了！”
“谢过大人！”
————
感谢土豪123的500打赏，感谢！感谢@活着就好的打赏
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