Shop Alpha crowns and drives for compatible 40mm tubular motors and roller tube systems. Match the correct fitting to your Alpha motor and existing roller tube profile before ordering.
Alpha 40mm Crown & Drives Alpha 40mm crowns and drives connect compatible Alpha 40mm tubular motors to the roller tube used within motorised blind and awning systems. The correct crown and drive depends on the roller tube being used. Different tube manufacturers and systems can use different internal diameters and profiles, so fittings are not necessarily interchangeable even when the tubes appear similar externally. The Alpha 40mm range includes crown and drive components for a variety of compatible roller tubes, including fittings specified for particular tube sizes, manufacturers and profiles. Individual product pages provide the compatibility information supplied for each Alpha product code. When replacing an existing fitting, compare the Alpha product code where available and check the dimensions and internal profile of your existing roller tube before ordering. Not sure which fitting you need? Use our Match Your Existing Blind Tube to the Correct Crown & Drive guide to help identify the appropriate component.