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Needle Roller Bearing Clearance Change Failure Maintenance Technology

  • 一般来说, NTN轴承的温度随着轴承的运转而开始缓慢上升,之后达到稳定状态 1-2 小时. 轧机轴承的常温随热容而变化, 散热, 机器的速度和负载.
  • 如果润滑和安装部件合适, 轴承温度会急剧升高并出现异常高温. 此时, 必须停止操作并采取必要的预防措施.
  • 热传感器可随时监测轴承的工作温度, and automatically alarm or stop when the temperature exceeds the specified value to prevent the occurrence of combustion shaft accident.Needle Roller 轴承 Clearance Change Failure Maintenance Technology
  • 高温常表明NTN轴承处于异常状态. 高温对轧机轴承的润滑油也有害. 有时轴承过热可归因于轴承的润滑剂. 如果轴承温度超过 125 ℃长时间, 轴承的使用寿命会降低.
  • 高温轴承的原因包括润滑不足或过度润滑和润滑剂. 它含有杂质, 超负荷, 轴承套圈损坏, 间隙不足, 油封引起的高摩擦, etc.Needle Roller Bearing Clearance Change Failure Maintenance Technology
  • 所以, 有必要连续监测 NTN 轴承温度, 无论是测量轧机轴承本身还是其他重要部件. 如果操作条件保持不变, any temperature change can indicate that a fault has occurred.Needle Roller Bearing Clearance Change Failure Maintenance Technology
  • 实际上, 我们之前分析的轴承故障是不可能的. 高温对轴承中的润滑剂也有害. 有时轴承过热可归因于NTN轴承的润滑剂. 如果轴承在超过 125 ℃, 高温轴承的使用寿命会降低.
  • 高温轴承的原因包括润滑不足或过度润滑, 润滑剂中的弹匣, 超负荷, 轧机轴承损坏和游隙不足, 以及油封引起的高温摩擦, ETC. 出色地, 总结一下这些.
铁姆肯公司非标轴承技术要求
  • 如果你不完整, we can only say so much about the failure of NTN bearing.Needle Roller Bearing Clearance Change Failure Maintenance Technology
  • Bearing maintenance is a necessary condition for the operation of ina combined needle roller bearing. The common maintenance is for the lubrication of bearing. After reading how to select the lubrication mode of bearing and understanding the lubrication mode of bearing, it is also necessary to understand the maintenance of bearing system. Let’s see how to carry out bearing lubrication and maintenance.

Needle Roller Bearing Clearance Change Failure Maintenance Technology

1、 The use and installation shall be careful, and strong stamping is not allowed. The solution to the bad phenomenon of ina combined needle roller bearing is not allowed to directly knock the bearing with a hammer, and the pressure is not allowed to be transmitted through the rolling body.Needle Roller Bearing Clearance Change Failure Maintenance Technology

2、 Use proper and accurate installation tools, try to use special tools, and try to avoid using cloth and short fiber.Needle Roller Bearing Clearance Change Failure Maintenance Technology

3、 Keep ina combined needle roller bearing and its surrounding environment as clean as possible. Sodium base grease is generally used for motor bearing. Even if the invisible smile dust enters the bearing, it will increase the wear, vibration and noise of the bearing.

Needle Roller Bearing Clearance Change Failure Maintenance Technology
  • To prevent the corrosion of ina combined needle roller bearing, when taking the bearing directly by hand, fully wash the sweat from your hands and apply high-quality mineral oil before operation. Pay special attention to rust prevention in rainy season and summer.
  •  Under some special operating conditions, ina combined needle roller bearing can obtain a longer life than the traditional calculation, especially under light load. Analysis on the mechanism and influencing factors of labyrinth seal of bearing box these special operating conditions are that when the rolling surface (履带和滚动部件) of the bearing is effectively separated by a lubricating oil film and limits the possible surface damage caused by pollutants.
  • Lubricants are important not only for bearings, but also for all bearings. 然而, please note that ina combined needle roller bearing should not add too much grease.
  • Then it’s time to change the lubricant of the bearing. 排出旧机油后, 如果可能的话, the bearings lubricated with engine oil should be filled with fresh engine oil and let the machine rotate at low speed for a few minutes.
  • Make the oil collect residual pollutants as much as possible, and then drain the oil. When replacing the grease of the bearing lubricated with grease, the Joe remover used shall avoid the contact of cotton with any part of the bearing. Because these residual fibers may wedge between rolling parts and cause damage, especially in bearing applications.
铁姆肯公司非标轴承技术要求
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