> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://clockworks.crisp.help/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # Clicks and Click Springs ### Clicks and Click Springs [Mechanical clocks](https://www.clockworks.com/clock-movement.html) with a ratchet wheel use [clicks](https://www.clockworks.com/clock-movement.html). This can mean a [spring](https://www.clockworks.com/clock-parts/clock-loop-end-mainspring-replacements.html) driven clock or a [weight](https://www.clockworks.com/product/polished-clock-weight) driven clock. [![](https://storage.crisp.chat/users/helpdesk/website/-/9/5/9/1/9591a3f915bf7800/weight_120tk07.jpg =262xauto)](https://www.clockworks.com/product/polished-clock-weight) ### Click on the picture to shop Clock Weights on Clockworks.com Clicks keep it wound in only one direction. Both have a ratcheting function as in a wheel being able to turn one way only. It spins one way and makes a clicking sound when this is done. That clicking sound is the [click](https://www.clockworks.com/product/clock-clicks-with-wires-and-rivets). This is the small part that makes the wheel turn in only one direction. The [click](https://www.clockworks.com/product/clock-clicks-with-wires-and-rivets) is held in the down position with some pressure from what is known as a [click spring](https://www.clockworks.com/product/33pc-clock-click-spring-assortment). [![](https://www.clockworks.com/wp-content/uploads/2020/11/340.020.clock_.click_.spring.click_.wheel_.demo_.wtr2_-700x648.jpg =377xauto)](https://www.clockworks.com/product/33pc-clock-click-spring-assortment) ### Click on the picture to shop Click Springs on Clockworks.com [![](https://storage.crisp.chat/users/helpdesk/website/-/9/5/9/1/9591a3f915bf7800/clicks-wires-rivets_96r7et.jpg)](https://www.clockworks.com/product/clock-clicks-with-wires-and-rivets) ### Click on the picture to shop Clicks, Wires and Rivets on Clockworks.com ### Clicks on spring driven movements Often when a [mainspring](https://www.clockworks.com/clock-parts/clock-loop-end-mainspring-replacements.html) breaks the [click](https://www.clockworks.com/product/clock-clicks-with-wires-and-rivets) will loosen considerably from the shock. Replace or tighten the loose [click](https://www.clockworks.com/product/clock-clicks-with-wires-and-rivets) to ensure it will not let go when winding the clock with the [key](https://www.clockworks.com/product/brass-single-end-clock-key). It is not uncommon to think the mainspring broke when really the click eventually came loose and let the [mainspring](https://www.clockworks.com/clock-parts/clock-loop-end-mainspring-replacements.html) slip. Once the click on the ratchet slips the mainspring lets loose and momentum of it unwinding is unstoppable. [![](https://www.clockworks.com/wp-content/uploads/2020/11/clock.click_.went_.south_.demo_.sized_.wtr_.jpg =364xauto)](https://www.clockworks.com/clock-parts/clock-loop-end-mainspring-replacements.html) ### Click on the picture to shop Mainsprings on Clockworks.com ### Clicks on weight driven movements In general, this is a harder style to replace and not really available on the market. If you need these for a weight driven ratchet wheel it is best to replace the entire wheel. Replacing the entire wheel will include the ratchet wheel, the arbor it is on and also the gear. It will have the click and spring on it all as one unit. This maybe the ratchet wheel on a chain driven clock or a cable drum for a cable driven clock. In both situations it is best to replace the entire component with the click and spring together. That way is it complete and done the best and quickest way. ![](https://www.clockworks.com/wp-content/uploads/2020/11/ratchet.wheel_.example.wtr_-700x700.jpg =505xauto) *The content of this website is copyright by [Clockworks Inc.](https://www.facebook.com/ClockworksUSA)