The Bett Sistemi rack drive jacks are components that transmit and synchronize movement:
they raise, lower, push and pull
FOR LOW-LOAD APPLICATIONS
They are ideal for low-load applications and available in two versions:
• with torque up to 4 Nm (the knob with torque limiter slips when reaching 4.5 Nm, protecting the reduction gear from overloads)
• with torque up to 12 Nm
Thanks to their rack drive, the costs are lower than those of screw system jacks.
WITH PARKING BRAKE
They are equipped with a parking brake to lock and maintain their position.
The brake prevents any loss of position caused by external factors (e.g. vibrations); if you use the knob for movement, the brake does not fully lock the position in order to protect the internal transmission devices.
The jacks are suitable for step by step, non-continuous movement (work/rest ratio=1/30. Maximum uninterrupted operation: 1 minute at 60 rpm, that correspond to a complete rack travel of 470 mm. Drive: manual, if motor-driven max. 60 rpm).
MAY BE USED IN COMBINATION
They synchronize the movement between a drive jack and an idler jack, which can be used alone or in series.