Ball Screw Linear Actuators with Flanged Nuts - BS Series

Ball screw linear actuators with rectangular flanged nuts are motor-driven devices that convert rotary motion into precise linear movement using compact BSR miniature ball screws in 6 mm, 8 mm, and 10 mm screw diameters. Factory-integrated with NEMA 08, 11, 14, 17, and 23 motors, these actuators are available in metric diameter-and-lead combinations using 1 mm, 2 mm, and 2.5 mm lead options. The rectangular flanged nut provides a flat mounting surface for direct attachment to plates, blocks, or carriage structures, making installation easier while improving load connection and resistance to nut rotation during axial travel. Each ball screw nut uses a multi-liner ball return system for smooth recirculation, while polymer wipers at both ends help prevent debris and particulates from entering the assembly. These actuators support static axial loads up to 2.144 kN (482 lb). Standard backlash is held to a maximum of 0.05 mm, with an optional preload feature available to increase rigidity, reduce play, and improve positional accuracy in compact automation, medical device, laboratory, robotics, and precision positioning applications.

• Five frame sizes: NEMA 08/11/14/17/23
• Static axial load: 2.144 kN (482 lb)
• Polymer wipers located at each end of the nut help prevent the ingress of debris and particulates
• Preload option for higher rigidity and better positional accuracy