直线滚珠轴承

60多年前,Thomson发明了滚珠衬套轴承。从那时起,我们一直是直线滚珠轴承技术公认的领导者。我们提供各种类型直线滚珠轴承及配件,都是为低摩擦、平滑、精确的直线运动而设计——我们高性能的直线滚珠轴承可满足苛刻的应用要求。此外,将Thomson直线轴承和Thomson 60 Case® 导向轴搭配使用,可使导向轴寿命提高50%。

Thomson直线滚珠轴承为何如此优异?

  

直线轴承是我们高性能直线运动产品阵容的重要一员,从标准组件到成套系统定制一应俱全。通过标准化,我们可以规避技术偏差,优化运动解决方案。性能始终是我们整条直线轴承产品线的生命线:

 

Thomson直线滚珠轴承为何如此优异?

直线轴承是我们高性能直线运动产品阵容的重要一员,从标准组件到成套系统定制一应俱全。通过标准化,我们可以规避技术偏差,优化运动解决方案。性能始终是我们整条直线轴承产品线的生命线:

 

Super Smart Linear Ball Bushing®轴承 

我们的Super Smart Linear Ball Bushing®轴承和轴承座采用专利的自调心、双轨直线轴承技术,其负载能力提高两倍,行程寿命提高八倍。为减少安装时间和成本,可出厂预装标准型或加长型轴承座。

 

Super Linear Ball Bushing®轴承 

由于采用固定半径弧形冠结构,自调心精度高,Thomson Super Linear Ball Bushing®轴承盘可补偿滑架加工误差。20多年来,该产品一直是自调心直线轴承的行业标准。与传统直线轴承相比, 其负载能力提高3倍,行程寿命提高27倍。我们的Super直线滚珠衬套轴承和轴承座是我们原创的自调心精密防磨擦直线轴承。
 

精密钢制直线轴承 

精密钢制直线轴承可消除高温环境下的粘结和震颤。因采用全钢制设计,可在高温应用中取代滑动轴承,而且比带聚合物部件的滚珠衬套轴承更加耐用。安装在标准Thomson轴承座上的精密钢制滚珠衬套轴承可在所有方向上自调心达3°。

 

MultiTrac®直线轴承 

MultiTrac®直线轴承采用专利的多轨道坚固设计,可最大限度地减少偏差,定位更加精准。其专利滚珠控制技术可消除常见的高摩擦滑动轴承中的粘结和震颤(粘-滑)现象。

 

RoundWay®直线轴承 

RoundWay®直线轴承是一种低摩擦滚柱,即使在重污染环境中仍能表现出色。该轴承结合了硬化和轧制钢制循环滚柱的高承载力和铁制可锻安装块的刚性,负载能力高、运行平滑。

 

FluoroNyliner®衬套直线轴承 

FluoroNyliner®衬套直线轴承非常适合冲洗、污染或水下环境。其接触面积大,因而在振动或冲击应用环境中性能优异,同时简约的设计又能确保其不惧重污染环境。

 

小型仪器直线轴承 

小型仪器直线轴承造型紧凑,专为要求紧凑尺寸的精密仪器应用以及要求高重复性和响应速度的小型机构或装置而设计。替换高摩擦滑动轴承时,其极低的摩擦系数有利于消除粘-滑现象,并提供平滑的直线运动性能。每款型号均可配套60 Case LinearRace导向轴来简化配合,优化系统性能和精度。

 

 

方导轨 vs 圆导轨何种直线导轨最合适?

   

根据用途选择直线导轨时,有两种类型可选:方导轨和圆导轨(导向轴)。选用哪种直线导轨,取决于其用途。

方导轨适于高负载、高刚性、高精度的应用中,通过导轨中与滚珠紧密贴合的滚道进行精密磨削,具有优越的性能。该导轨在对负载能力、刚度和精度要求较高的机床行业中较为常用。圆导轨也有多种优势,例如,当安装面不太完美或用于重载的垂直运动时,仍可保持平稳运行。

点击此处,了解更多有关方导轨或圆导轨的分析。

Choosing Between Closed and Open Linear Ball Bushing Bearings

Preventative Linear Bearing Maintenance

How to Use Adjustable Pillow Blocks to Optimize Precision

Choosing a Thomson Pillow Block

How the Orientation of a Thomson Linear Ball Bushing Bearing Affects its Load Capacity

A Closer Look at Thomson Adjustable Linear Bearings

Mounting Thomson Linear Ball Bushing Bearings

History

In 1945 the Ball Bushing bearing was invented by John Thomson Sr. The bushing was the solution to the stick slip problem in the linkage used to change pitch of propeller blades in aircraft. Ball bearings eliminated the stick-slip, binding, and chatter of the plain bearing. Ball re-circulation virtually eliminates wear and provides a constant coefficient of friction as low as 0.001. 

浏览更多
DESIGN AND THEORY

In a RoundRail linear guide, the outer race is the linear bearing while the inner race is the shaft. In this training section we will be focusing on the linear bearing (outer race). 

浏览更多
PRODUCT DETAILS

Linear slide bearings offer low friction and good load capacity. They are usually the first option to consider when needing a linear guide. Our Ball Bushing bearing line consists of the following families: 

 

  • Super Smart Ball Bushing Bearings 

  • Super Ball Bushing Bearings 

  • Precision Steel Ball Bushing Bearings 

  • “A” bearing 

  • MultiTrac (MAM) 

  • Die set 

  • Miniature instrument 

浏览更多
INSTALLATION INSTRUCTIONS

Pillow blocks are designed to make it easy to mount a ball bushing bearing. They have bolt holes so the block with the bushing inside can be bolted to the mounting surface. When a pillow block is not used the bushing needs to be retained into a bore. The following video discusses several retention possibilities. 

浏览更多
MAINTENANCE

A few general guidelines to help select from the available lubrication options: 

  • Light loads and high speeds do well with machine oil or low viscosity grease 

  • Medium loads and speeds do well with NLGI 1 or 2 grease 

  • High loads may require a grease with an EP2 additive. The EP is Extreme Pressure and uses special additives to prevent the grease from breaking down under high pressures. This type of grease will give the steel shafts a dull appearance 

  • Thomson LinearLube® is suitable for most industrial applications and is FDA listed 

浏览更多