Cranes, winches and elevators require reliable load holding. A suspended load may descend under gravity if the drive loses power and the system lacks an effective holding mechanism. The worm stage in an S series helical-worm gear reducer may exhibit static self-locking under suitable gear ratio and lead angle conditions. Self-locking must not be used as the sole safety function for a hoist; the complete lifting system requires appropriately specified braking and protective measures.<\/p>\n\n\n\n
Self-locking depends on the relationship between the worm lead angle and the friction angle. In simplified static terms, a lead angle below the friction angle can prevent the worm wheel from back-driving the worm. Under those conditions, the load cannot drive the transmission backwards when motor input stops. The S series design seeks a balance between transmission efficiency and self-locking behaviour.<\/p>\n\n\n\n
Port logistics in the UAE, construction lifting equipment in Saudi Arabia and agricultural lifting equipment in Kenya create demand for gear reducers with suitable load-holding characteristics. SANYOO\u2019s S series has application potential in these markets. Its sealing performance supports use in coastal salt-spray conditions in the Middle East and high-humidity environments in tropical Africa.<\/p>\n\n\n\n
Worm gear self-locking depends on gear ratio and lead angle; reliable self-locking is not guaranteed at every ratio. Higher reduction ratios and smaller lead angles can favour self-locking, but generally reduce efficiency. When selecting a drive for lifting equipment, define the load-holding requirements and ask SANYOO\u2019s technical team to confirm performance under the actual operating conditions. This assessment does not replace the braking and safety requirements of the complete lifting system.<\/p>\n\n\n\n
Visit www.sanyoogear.com and provide the lifting load, required speed and duty classification. SANYOO can assist with selecting an appropriate S series model.<\/p>\n","protected":false},"excerpt":{"rendered":"
Drive Requirements for Lifting Equipment Cranes, winches and elevators require reliable load holding. A suspended load may descend under gravity if the drive loses power and the system\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/posts\/26","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":1,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/posts\/26\/revisions"}],"predecessor-version":[{"id":27,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/posts\/26\/revisions\/27"}],"wp:attachment":[{"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/media?parent=26"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/categories?post=26"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sanyoogear.com\/blog\/wp-json\/wp\/v2\/tags?post=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}