General Features Features: Alwayse Spring Loaded Units are used in applications such as Guillotines, Presses, Moulding Machines, Tool Bases, Press Brakes and Shock Loading applications. They reduce damage caused by shock loads. They also allow for dimension changes due to temperature and self-adjust to evenly distribute loads. 1507, 1508 and 1509 Units These units incorporate a plastic scraper seal which keeps debris outside the ball unit. Spring loaded ball units can be used as die-lifters, inverted or at an angle. Completely stainless steel (Type 15) spring loaded ball units also available upon request. with reduced support loads and depres loads. The Type 14 ball units are suitable for light load applications and when object surface protection is required.