The SF-A60 / SF-A90 system provides silent sliding rollers: SF-A60 with friction bearing for sliding panels up to 60 kg and SF-A90 with ball bearing for sliding panels up to 90 kg. Vertical adjustment mechanism, overlaid or flush-mounted plate, trim cover attachable to the guide to conceal the installation, satin anodized aluminum profile or mill finish aluminum profile, hidden bottom guide and retaining brake. In addition, as a novelty, the SF-P70 system offers high quality technical plastic rollers with ball bearing and incorporated softbrake.