YOUTUBE promo code for a 10% discount on your first order of components in our store at the link: https://3d-diy.ru/ Anyone who has ever assembled a CNC machine or 3D printer has faced the choice of a coupling. Rigid, blind, split, bellows, spring... How to choose the right one among such a huge number of couplings? How do they differ? What are the pros and cons. We will talk about this in our video. ➤ Where to buy couplings: https://3d-diy.ru/catalog/couplings/ Contents: 00:00 - Why is a coupling called a coupling 01:31 - Why couplings are used 01:57 - Types of couplings 02:58 - Rigid couplings 04:04 - Sleeve couplings 04:29 - Flange couplings 05:41 - Longitudinal-roll couplings 06:26 - Compensating couplings 06:47 - Joint couplings 07:19 - Star couplings with a sprocket 08:23 - Oldham couplings 09:09 - Flexible couplings 09:40 - Diaphragm couplings 10:18 - Bellows couplings 11:47 - Spring couplings 12:02 - Spiral and split couplings 12:48 - Flexible couplings for high-speed motors 13:21 - Methods of fastening shafts in couplings 13:40 - Clamping the shaft with a screw 14:37 - Clamping with half rings 15:07 - Fixing with a pin 15:26 - Keyed connection 15:42 - Collet clamp 16:02 - Splined connection 16:21 - Coupling sizes 17:02 - Coupling materials 17:51 - Results ★ Our catalog of 3D printers: https://3d-diy.ru/3d-printery/​​ ★ Components for 3D printers: https://3d-diy.ru/catalog/3d-printer-... ★ Components for CNC: https://3d-diy.ru/catalog/cnc-compone... ★ Components for Arduino: https://3d-diy.ru/catalog/arduino-and... ════════════════════════════════════ Our official website: https://3d-diy.ru/​​ Vkontakte group: https://vk.com/3d_diy​​ Instagram: / 3d_diy