{"id":259,"date":"2016-03-18T19:22:51","date_gmt":"2016-03-18T08:22:51","guid":{"rendered":"http:\/\/btprecision.com.au\/?page_id=259"},"modified":"2018-02-15T19:41:15","modified_gmt":"2018-02-15T08:41:15","slug":"rack-and-pinion","status":"publish","type":"page","link":"https:\/\/btprecision.com.au\/index.php\/rack-and-pinion\/","title":{"rendered":"Rack and Pinion (Helical and Straight Cut)"},"content":{"rendered":"

[vc_row full_width=”stretch_row” css=”.vc_custom_1458280070361{background-color: #ffffff !important;}”][vc_column width=”1\/3″][vc_single_image image=”279″ img_size=”large” style=”vc_box_border”][\/vc_column][vc_column width=”1\/3″][vc_custom_heading text=”Rack and Pinion” font_container=”tag:h2|text_align:center|color:%23353535″ use_theme_fonts=”yes”][\/vc_column][vc_column width=”1\/3″][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]Rack and Pinion in Straight cut and Helical<\/strong><\/p>\n

Module M1.5 ex Stock. Ideal for CNC applications<\/p>\n

Rack and Pinion<\/strong><\/p>\n

Rack and Pinion assemblies are utilised to convert rotating movement into linear motion. A gear rack has straight teeth cut into one surface of a square or round section rod with a pinion, which is a small cylindrical gear meshing with the gear rack.<\/p>\n

BT Precision has many types of gear racks in stock. If the application requires a long length requiring multiple gear racks in series, we have racks with the tooth forms correctly configured at the ends. These are described as \u201cgear racks with machined ends\u201d.<\/p>\n

There are applications where the gear rack is stationary, while the pinion traverses and others where the pinion rotates on a fixed axis while the gear rack moves. The former is used widely in conveying systems while the latter can be used in extrusion systems and lifting\/lowering applications.<\/p>\n

As a mechanical element to transfer rotary into linear motion, gear racks are often compared to ball screws. There are pros and cons. The advantages of a gear rack is its mechanical simplicity, large load carrying capacity, no limit to the length, etc. One disadvantage though is the backlash. The advantage of a ball screw is the high precision and lower backlash while the shortcomings include the limit in length due to deflection.<\/p>\n

Rack Types<\/h3>\n

Rack and pinion gears are available in two variations:<\/p>\n