Roller chain kit Strong (61 diameter)
Continuous chain unit with pitch of 4.5/6 and 1:4 gear ratio.
Apt for curtains up to 420cm wide * 450cm high and no more than 12kg in weight.
61mm diameter tube with wall thickness of 2mm and 1.568kg/ml.
Oval-shaped aluminium lower counterweight inserted into 40mm heat-sealed bag.
Metal supports with embellishing plastic cover available in 4 colours for attachment to ceiling, wall or lateral.