skf轴承基础知识分解

SKF轴承知识大全

The pony was revised in January 2021 SKF 轴承知识大全

SKF 轴承 简介 ，SKF 轴承型号的含义 ，NSK 公司概述 ，SKF 轴承 故障排除 and

so on.

1：SKF 轴承简介：

SKF 的全称是“Svenska Kullager-Fabriken”中文音译名称为“斯凯孚”；

2：SKF 轴承型号的含义

SKF 公司的滚动轴承，滚动轴承部件及附件的完整代号由基本代号和补充代号组成。基本代号由轴承类型代号，尺寸系列代号和内径代号构成。表示轴承的基本类型，结构和尺寸，是轴承代号的基础。

补充代号是轴承结构形状，尺寸，公差，技术要求有改变时在基本代号左右添加的代号。在基本代号左边添加的代号为前置代号，用以识别轴承部件，在基本代号右边添加的代号为后置代号，用以表示与原设计有区别或与现行生产的标准有差异的设计问题。

1） 前置代号

GS——推力圆柱滚子，推力滚针轴承座圈。例：GS81107-推力圆柱滚子轴承 81107 的座圈。

K——推力滚子和保持架的组合件里。例：K81170。

K-——符合 AFBMA 标准系列英制圆锥滚子轴承带滚子和保持架组件的内圈（内锥体）或外圈（锥环）。 例：K-09067——系列为 09000 的圆锥滚子轴承的内锥体。

L——分离型轴承的单一内圈或外圈。例：LNU207——圆柱滚子轴承 NU207 的内圈。

L30207——圆锥滚子轴承 30207 的外圈。

R——除去单一内圈或外圈的分离型轴承。例：RNU207——圆柱滚子轴承 NU207 带滚子和保持架组合件的外圈。R30207——圆锥滚子轴承和保持架组件的内圈。

WS——推力圆柱滚子，推力滚针轴圈。例：WS81107——推力圆柱滚子轴承 81107 的轴圈。

2.后置代号

skf 轴承手册

SKF是全球领先的轴承生产商和供应商，其产品广泛应用于各行各业。SKF轴承手册是为了帮助用户了解和正确使用SKF轴承而编写的一本重要参考资料。本篇文章将介绍SKF轴承手册的主要内容和作用。

首先，SKF轴承手册提供了详细的轴承知识和技术资料，包括轴承的分类、结构、工作原理、选型与安装等。其中，轴承的分类包括：深沟球轴承、角接触球轴承、圆柱滚子轴承、圆锥滚子轴承、调心球轴承、调心滚子轴承等。通过学习这些内容，用户可以更好地了解不同类型轴承的特点和适用领域，从而为实际应用提供有针对性的选择。

其次，SKF轴承手册提供了详细的产品目录和规格参数，方便用户查询和选择合适的轴承型号。无论是在设计新产品还是更换现有设备的轴承时，用户都可以根据手册中提供的参数和技术指标，选择最佳的轴承解决方案。

此外，SKF轴承手册还介绍了轴承的使用、维护和保养。用户可通过手册获知轴承在使用过程中需要注意的事项，以及如何正确进行维护和保养，以延长轴承的使用寿命。例如如何正确润滑轴承、如何检测轴承的运行状态等。同时，手册中还提供了常见故障和故障处理方法，帮助用户在轴承发生故障时能够及时解决问题。

最后，SKF轴承手册还包含了一些实际应用案例和示例。这些案例展示了不同行业和领域中轴承的具体应用情况，以及解决实际问题的方法和经验。通过这些案例，用户可以了解到更多轴承在不同场景下的实际应用，从而得到更多的启发和借鉴。

总之，SKF轴承手册是一本全面而实用的参考资料，为用户提供了轴承的基础知识、产品选择和使用技巧等方面的重要信息。通过学习和熟悉手册中的内容，用户能够更好地了解和使用SKF轴承，提高设备的性能和可靠性，降低维修和更换轴承的成本。

腹有诗书气自华 SKF的起源

（1）SKF的起源：

1905年，年轻的瑞典纺织技师温奎斯特（Sven Wingquist）由于受到纺织机械上轴承损坏频繁的困扰，发明了自动调心双列球轴承，将当时的轴承科技带入新纪元，SKF随即于1907年创立。

（2）SKF简介：

SKF集团是全球领先的滚动轴承和密封件供应商，其业务范围包括轴承制造和密封件生产以及轴承相关工具的推广，为客户提供各种解决方案和服务。SKF的业务分为五大部门：工业部、汽车部、电机电器部、服务部、航天和钢铁部。每个业务部门都为全球市场提供服务，重点放在和自身业务相关的客户及行业。SKF从一开始就非常重视产品质量、技术研制和市场开发，在荷兰有我们SKF专门研究机构，集团投入巨大力量进行技术研究和产品开发， SKF 每年投入 17%

的销售额用于研究和发展，不断取得各种发明与创造，平均每天都有2-3项新的发明与专利产生，在轴承技术领域开创新标准，向轴承市场推出新产品。SKF集团的主要实力包括技术支持、设备维护服务、设备状况监测以及技术培训。SKF是一家全球跨国企业，属下有100多家制造工厂，分设在世界各地。 SKF在全球有40,000 多名员工，8,000 个办事机构，在130多个国家设有自己的经销机构，并获得全球15000多家经销商和代理商的支持。优质的产品、完善的全球物流系统、良好的售后服务系统，使SKF这个跨国公司已成为世界轴承领域的品牌。

（3）SKF在中国：

SKF早在1912年就进入了中国，于上海建立了第一个办事机构，1916年在中国成立了第一个销售公司。1986年SKF又重新回到中国，在上海建立了寄售站。1988年SKF中国有限公司在香港成立，并且先后在上海，北京，广州，成都，大连，南京，西安，武汉建立了办事处，又在北京成立了寄售站。2001年更建立了斯凯孚轴承贸易（上海）有限公司，大大 扩展了在中国的销售贸易业务。SKF致力于同中国著名轴承企业的合作， 先后于1994年成立了斯凯孚汽车轴承有限公司， 于1996年成立了北京南口斯凯孚铁路轴承有限公司，于1998年成立了大连斯凯孚瓦轴轴承有限公司，于2001年成立了斯凯孚（上海）轴承有限公司，扩大了在中国的业务。

1 Bearing basics Special Notes for iPad Users For iPad users, this course plays in the “Articulate mobile player app”, available free from the App store. The app offers a download option for offline learning, but please note that: 1. An on-line connection is required to use the links on the “resources” tab 2. If you wish to be able to print your course completion certificate then you need to be on-line when you take the end-of-course test To continue, you can click the Home icon on the screen to return to the Welcome page of the course. Welcome Welcome to the Basic introduction to rolling bearings course. This course will give you an introduction to SKF bearings and consists of three sections: Functions and parts, Applications and bearing types, and Designations. Module 1: Functions and parts Why bearings? Bearings are an essential component of almost all machinery. They transmit loads between, support, guide and locate, machine elements that are required to move relative to each other with a minimum of friction, e.g. a rotating or oscillating shaft, pivot or wheel. Friction: Page 1 Friction counteracts the movement between two surfaces. It is essential for the success of many operations, such as a car tyre gripping a road. In most machines however, friction is undesirable since it causes power loss, heat generation, wear and noise. SKF bearings help reduce friction. 2 Friction: Page 2 The earliest bearings were mostly made of wood and consisted of a shaft rotating in a hole in a housing, or a wheel rotating on a stationary shaft. Because the components were sliding over each other, friction was relatively high and wear rather rapid. This type of bearing is called a plain bearing and, made of modern materials, is still used in some applications today where speeds and loads are relatively low. Friction: Page 3 The introduction of rolling elements between the shaft and the housing greatly reduces friction. Friction: Page 4 Today, typical SKF rolling bearings combine maximum load capacity with minimum friction, using hardened steel or ceramic rolling elements, hardened steel inner and outer rings and a cage to guide and separate the rolling elements. Loads: Page 1 A bearing can be under radial load, perpendicular to the shaft, or under axial load, acting in the direction along the shaft, or a combination of both radial and axial load, a combined load. Loads: Page 2 Large bearings support heavier loads than small bearings can support, and roller bearings support heavier loads than ball bearings can support. Raceway contact The basic difference between ball bearings and roller bearings is in the contacts between the rolling elements and the raceways. Balls have point contact; rollers have linear contact with relatively larger area. 3 Bearing parts A typical rolling bearing consists of an inner ring, an outer ring and rolling elements contained by a cage. The most common type of rolling bearing is the deep groove ball bearing. These bearings can, as shown here, be supplied with integral seals to retain the lubricant and resist the ingress of contamination. Selection factors There are many factors, which will affect the choice of a bearing. These are: Available space, load, required service life, misalignment, speed, stiffness, axial displacement and clearance. Selection factors: Space Space can be an important factor in bearing selection. Where radial space is limited a bearing with small diameter rolling elements, such as a needle roller bearing, may be needed. Selection factors: Load When selecting a bearing, it is important to consider the direction of the load, and the amount of load the bearing will have to carry. A bearing can be under radial load, axial load, or a combination of both. Selection factors: Required service life The life of a bearing can be expressed in terms of: the number of revolutions before failure, the number of operating hours before failure, or the distance covered (for cars and trucks). A bearing is considered to have failed when it shows the first sign of fatigue in a rolling element or raceway, or damage to other parts such as the cage or the seals. Service life is the real life that an individual bearing achieves in a particular application before it has to be replaced. It depends on a variety of influencing factors, including lubrication, the degree of contamination, misalignment, proper installation, and environmental conditions. 4 Because service life cannot be calculated or predicted, bearings are selected using calculated rating life. SKF rating life L10m, a reference value calculated according to statistical methods, using modification factors for lubrication conditions and degree of contamination, and applying the same concept of a fatigue load limit as used in ISO 281, to estimate the life, with 90% reliability, that a sufficiently large population of apparently identical bearings might achieve when all are operating in an identical application. Selection factors: Misalignment Where a bearing is likely to be subject to angular misalignment, for example the shaft might bend due to operating loads, appropriate bearings need to be selected. Self-aligning bearings can accept a degree of operational misalignment and can also compensate for limited initial alignment errors in mounting. Selection factors: Speed The maximum speed that a bearing can be run in an application is limited by the maximum operating temperature for the materials used in its manufacture, or the lubricant. For high-speed applications minimum possible friction is important, so ball bearings are generally used. Selection factors: Stiffness Elastic deformation occurs under load. Usually this deformation is very small and can be ignored. However, in some applications, stiffness is an important factor. Roller bearings have higher stiffness than ball bearings due to the larger area of the line contact. Selection factors: Axial displacement Some applications require bearings that allow the shaft to move axially relative to the bearing. This is called axial displacement. Most often, a shaft is supported by a locating bearing and a non-locating bearing. The locating bearing does not allow axial displacement and keeps the shaft in position. The non-locating bearing supports the shaft and allows displacement to prevent the bearings from being stressed. Cylindrical and CARB toroidal