Planetary Roller Screws

The PRS models, with G5 lead accuracy, are available in screw diameters ranging from 8- to 80-mm, and deliver static load ratings up to 218,000-lbf. Exlar’s PRR models, with G9 lead accuracy, are available in screw diameters of 12- to 27-mm and offer static loads up to 18,000-lbf.

Exlar’s roller screws are a superior mechanism for converting rotary torque into linear motion. They function in a similar manner as acme screws or ball screws, with a nut traveling on a threaded shaft. However, unlike acme or ball screws, Exlar roller screws are capable of carrying heavy loads—at high speeds—with high duty cycles for thousands of hours in the most arduous conditions. This makes them an optimal choice for demanding, continuous-duty applications. Exlar roller screws are also an ideal replacement for ball screws, due to their longer travel life in the same compact size.

滚子螺钉与液压和气动解决方案

在预期高负载的应用中，或者需要更快的循环，Exlar滚子螺杆执行器提供了液压或气动溶液的优异替代方案。使用辊子螺钉的机电系统提供了主要优点，因为它们不需要复杂的阀门，泵，滤波器和传感器。因此，基于辊螺杆的系统需要更少的空间，并通过最小的维护提供显着长的工作寿命。此外，这些系统消除了液压液泄漏并显着降低了噪声水平，从而产生高效的操作。机电系统还提供了更大的灵活性，使其适用于各种应用。

滚筒与滚珠丝杠性能

载荷和刚度：由于设计因素，滚珠丝螺钉中的接触点的数量受球尺寸的限制。或者，Exlar的行星滚子螺杆设计在相对尺寸的滚珠丝杠上具有显着的接触点。增加的接触点使能滚子螺钉能够提供更高的负载承载能力，以及改善的刚度。这导致最小的空间要求，以充分满足指定的负载额定值。

Exlar的行星滚子螺钉是以下应用的理想选择：

•医疗组装 - 人造心，患者定位桌，自动化高力注射器
•机床 - 按压，拉削，磨削，敷料，切割
•塑料，玻璃和纺织 - 模具关闭，切换驱动器，弹出轴，转移，转移
•Military – weapons positioning, door control, artillery handling
•大会——铆接紧固,加入,夹紧,part positioning, weld guns
•Food and Beverage – volumetric filling, palletizing, cartooning, sealing

Exlar Corporation -www.exlar.com