{"id":1881,"date":"2016-12-06T11:00:25","date_gmt":"2016-12-06T17:00:25","guid":{"rendered":"http:\/\/blog.misumiusa.com\/?p=1881"},"modified":"2021-11-02T16:58:48","modified_gmt":"2021-11-02T21:58:48","slug":"introduction-to-various-sliding-guides","status":"publish","type":"post","link":"https:\/\/blog.misumiusa.com\/introduction-to-various-sliding-guides\/","title":{"rendered":"Sliding Guides Pt. 1: Introduction to Various Sliding Guides"},"content":{"rendered":"

Linear motion components<\/a> can be combined to create complex or simple mechanisms for your application or machine.\u00a0 Combining linear motion components linear shafts <\/a>and bearings<\/a>\/bushings<\/a> create basic sliding guides.\u00a0 Sliding guides constrict the motion trajectories and moving members.<\/p>\n

Each guide requires the following characteristics:<\/p>\n\n\n\n\n\n
<\/td>\n1.<\/td>\nSupport the moving loads.<\/td>\n<\/tr>\n
<\/td>\n2.<\/td>\nSmall and stable moving force.<\/td>\n<\/tr>\n
<\/td>\n3.<\/td>\nProvide assured long term stable accuracies under high speed\/acceleration operations.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The items 1 and 2 above are static performances (not associated with motion), and 3 is a dynamic performance (associated with motion). Sliding guide selection and structural designing will require basic knowledge shown below.<\/p>\n

\"graph\"<\/p>\n

Here, representative linear sliding guides, rotary guides, and curve guides are explained.<\/p>\n

(1) Linear Sliding Guides<\/strong><\/p>\n

Linear sliding guides are mechanisms allowing linear movements with accuracy and with little friction of linear motion units such as air cylinder driven units.\u00a0 Below is a chart illustrating the various linear sliding guides with their benefits.<\/p>\n\n\n\n\n
Linear Sliding Guide Types<\/strong><\/td>\nCharacteristics<\/strong><\/td>\nFactory Automation Components<\/strong><\/td>\n<\/tr>\n
Linear Guides\u00a0with Round Shafts ([Fig] a)<\/p>\n

\"lg-with-round-shaft\"<\/td>\n

\n\n\n\n\n\n
–<\/td>\nSingle shaft configuration if rotation regulation is not needed<\/td>\n<\/tr>\n
–<\/td>\nLarge DIA guides for load support<\/td>\n<\/tr>\n
–<\/td>\nFriction reduction mechanism can be added<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n\n\n\n\n\n\n\n\n
–<\/td>\nLinear Bushings<\/a><\/td>\n<\/tr>\n
–<\/td>\nOil-free Bushings<\/a><\/td>\n<\/tr>\n
–<\/td>\nJig Bushings<\/td>\n<\/tr>\n
–<\/td>\nMiniature Ball Guide Sets<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
Linear Motion Guides ([Fig] b)<\/p>\n

\"lf\"<\/td>\n

\n\n\n\n
–<\/td>\nSelectable performance criteria: Friction reduction, high rigidity, high accuracy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n\n\n\n\n\n\n\n
–<\/td>\nLinear Guides<\/a><\/td>\n<\/tr>\n
–<\/td>\nSlide Way<\/td>\n<\/tr>\n
–<\/td>\nSlide Tables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
Gib\u2019s Guides (Flat gibs, Triangle rails) ([Fig] c)<\/p>\n

\"gib\"<\/td>\n

\n\n\n\n
–<\/td>\nWide variety of performance levels such as low cost and ultra-high performance, achievable due to low parts counts.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n\n\n\n\n\n
–<\/td>\nLinear Guides<\/a><\/td>\n<\/tr>\n
–<\/td>\nGuide Rails<\/a> (Air\u00a0bearings, etc.)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(2) Rotary Guides<\/strong><\/p>\n

Similar thoughts as above are also applicable to rotary shaft guides (ball bearings). Inertia applicable on linear motion does not apply to rotary motion, and advanced ball bearing technologies are used to obtain high speed guiding characteristics.\u00a0 There are a variety of rotary ball bearings that guide rotary shafts their applicable parts.<\/p>\n

(3) Curve Guides<\/strong><\/p>\n

For curve (circular-arc, etc.) guides, linear motion guides formed into curvature driven by motors and ultrasonic motors are used.\u00a0 There are also circular linear guides, just like a linear guide but the rail is curved.\u00a0 This is able to withstand forces in multiple directions.<\/p>\n

\"Linear
Linear Arc Guide Image via DRE Engineeering<\/figcaption><\/figure>\n

Sliding guides offer a variety of motion options.\u00a0 From non-rotational to load support, linear motion components are versatile for your needs.\u00a0\u00a0 Up next, friction and wear in sliding mechanisms are examined.<\/p>\n","protected":false},"excerpt":{"rendered":"

Linear motion components can be combined to create complex or simple mechanisms for your application or machine.\u00a0 Combining linear motion components linear shafts and bearings\/bushings create basic sliding guides.\u00a0 Sliding guides constrict the motion trajectories and moving members. Each guide requires the following characteristics: 1. Support the moving loads. 2. Small and stable moving force. 3. Provide assured long term […]<\/p>\n","protected":false},"author":46,"featured_media":1891,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1136],"tags":[244,16,95,12,336],"class_list":["post-1881","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mechanical-design","tag-linear-bearings","tag-linear-bushings","tag-linear-guide","tag-linear-motion-2","tag-sliding-guide"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t