Mobile Nylon Pulley Diameter 50mm double groove + supports
Mobile Nylon Pulley Diameter 50mm Double Groove delivered assembled with its steel support including 2 holes for hanging springs.
Pulley diameter 50mm
Ball bearing
Delivered assembled with mobile support
Heavy-duty ball bearing with ABS overmolding.
The nylon pulley is more resistant than a steel pulley , by choosing it, you extend the life of your garage door.
Porte de garage sectionnelle
Les roues double gorge à mon avis mieux que celles d'origines car les gorges sont plus profondes.