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安装时需要注意的几个问题
安装时需要注意的几个问题
2021-12-25
滚动轴承安装后如何进行定期维护
滚动轴承安装后如何进行定期维护
2021-12-26

向心推力球轴承安装时需要注意的问题

Centripetal Thrust Ball Bearing

向心推力球轴承是精密零件, 所以在使用时需要相当谨慎, 那是, it uses high-performance 轴承. 如果使用不当, it can not achieve the expected performance effect, 并且容易损坏轴承. 所以, 使用轴承时要注意以下事项:

然而, 在一些特殊的操作条件下, 向心推力球轴承可以获得比传统计算更长的寿命, Centripetal Thrust Ball Bearing especially under light load. These special operating conditions are the surface damage that may be caused when the rolling surface (履带和滚动部件) is effectively separated and limited by a lubricating oil film. 实际上, 在理想条件下, 所谓永久轴承寿命是可能的.

油脂润滑包括在密封轴承中预先填充油脂的密封方法, and the filling grease supply method of filling an appropriate amount of grease in the shell and replenishing or Centripetal Thrust Ball Bearing replacing it at regular intervals.

此外, 具有多个需要润滑的向心推力球轴承的机械也采用各润滑点连接管道的集中供脂方式. Centripetal Thrust Ball Bearing Grease lubrication can be filled with grease for a long time without supplement, and the structure of its sealing device is simple, 所以被广泛使用. 油润滑比较简单.

向心推力球轴承安装时需要注意的问题

向心推力球轴承的安装和拆卸方法应根据结构确定, 尺寸和与轴承部件的匹配性质. Centripetal Thrust Ball Bearing The pressure of installation and disassembly shall be directly added to the end face of the tight fitting retaining ring, 并且压力不能通过滚动体传递,

因为它会在轴承的工作面上造成压痕, 影响轴承的正常运转, 甚至损坏轴承. The cage, 密封圈, 防尘罩等轴承部位容易变形, Centripetal Thrust Ball Bearing and the pressure for installing or removing the bearing cannot be added to these parts.

(1) 轴承内圈与轴紧密配合,

外圈与外壳松配合. 轴承可以用压力机压装在轴承上, 然后将轴和轴承安装到外壳中. Centripetal Thrust Ball Bearing During press installation, 向心推力球轴承端面垫有软金属装配套 (铜管或软钢管).

装配套筒内径应略大于轴颈直径, Centripetal Thrust Ball Bearing and the outer diameter shall be less than the diameter of the retaining edge of the bearing inner diameter to avoid pressing on the cage. 大量安装轴承时, 可以在袖子上加一个把手.

向心推力球轴承的安装应使轴承孔与轴的中心线重合. 轴承相对于轴的偏斜不仅安装困难, 但也会造成压痕, 轴承内圈轴颈弯曲甚至断裂.

印刷机丢失或无法使用的地方, 轴承可以用装配套和小锤子安装. 锤击力应均匀地传递到轴承套圈端面的整个圆周, 因此组装套筒的锤击端面应制成球形.

(2) The outer ring of the bearing is tightly matched with the shell hole,

and the inner ring is loosely matched with the shaft. The bearing can be pressed into the shell first. 此时, the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the shell hole.

(3) The bearing inner ring and the shaft,

the outer ring and the shell hole are closely matched. The end face of the assembly sleeve should be made into a ring that can compress the end faces of the inner and outer rings of the bearing at the same time, or a disc and the assembly sleeve should be used to transfer the pressure to the inner and outer rings at the same time, and press the bearing into the shaft and the shell. This installation method is especially suitable for the installation of centripetal spherical bearings with automatic centering.

(4) For heating installation,

the force required to install the centripetal thrust ball bearing is related to the bearing size and fit interference. For medium and large bearings with large interference, the method of hot installation is commonly used. Before hot installation, put the bearing or separable bearing ring into the oil tank or special heater and heat it evenly to 80 ~ 100 ℃ (it shall not exceed 100 ℃). Skilled operation skills are required for hot installation of bearings.

Clean cloth shall be used immediately after the bearings are removed from the heating oil tank or heater (cotton yarn is not allowed) wipe off the oil stains and attachments on the bearing surface, then place it in front of the mating surface, and push the bearing to the position against the shaft shoulder in one operation.

Always push it tightly during cooling, or gently tap the bearing with a small hammer through the assembly sleeve to make it close. 安装期间, rotate the bearing slightly to prevent installation inclination or jamming.

When the outer ring of the centripetal thrust ball bearing is tightly matched with the housing hole, the housing can also be heated and installed into the bearing. Especially when the bearing seat made of light metal is tightly matched, the mating surface may be damaged due to the pressing in of the bearing outer ring. 此时, the bearing seat should be heated.

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