Hiwin ballsplines are linear motion systems, which can be used in SCARA robots, pick and place applications, and more. Offering flexibility for the design engineer, ballsplines do not require a horizontal base like linear guideways. An upgrade from bushings, Hiwin ballsplines and nuts are made of the same high-quality materials as Hiwin’s ground ballscrews and ballnuts.

Features include:

  • Transmission of torque – the steel balls traveling on the groove with angular contact offer relative movement between the nut and the screw to achieve torque transmission.
  • Integral structure – the integration of the nut and support bearings allows the ballspline to achieve high precision and a compact design.
  • Easy installation – with the optimized retainer design, the nut can easily be removed from the spline shaft and the steel balls will remain secure in the nut.
  • Lubricant path – the optimized lubricant path allows grease to be directly guided to the ball track improving lubrication and increasing service life.


New Stocking Program

Four sizes of FS Ballsplines are in stock to be cut to length and machined per your requirements. A range of sizes and three additional styles/types are also available.

FS = Flanged Spline Nut
*stocked in 16mm, 20mm, 25mm, and 32mm diameters.

RS = Round Spline Nut

FSR = Flanged Rotation Spline Nut



IKO designs and manufactures a variety of compact ball spline guides to achieve precise linear motion across a diverse range of applications, from medical equipment to semiconductor manufacturing. External cylinders enable smooth linear motion along a spline shaft. IKO ball splines also provide maintenance-free options from the C-Lube line with a built-in lubrication unit.


Ball Splines – C-Lube Linear Ball Spline • Linear Ball Spline • Block Type Linear Ball Spline • Stroke Ball Splines

IKO Ball Spline


Nippon BearingNippon Bearing

Nippon Bearing ball spline is a linear motion mechanism utilizing the recirculating motion of ball elements. It can be used in a wide variety of applications including robotics and transport type equipment. The NB Rotary Ball Spline can be used for both rotational and linear motion, including: SCARA robots, the vertical shaft of assembly equipment, and tool changers and loaders.The NB Ball Screw Spline combines ball screw and ball spline on a single shaft, allowing linear actuation, torque transfer, and rotational motion with a single compact assembly. It can be used in SCARA robots, the vertical shaft of assembly equipment, and tool changers and loaders.

Nippon Bearing

Ball Splines – SSP/SSM • SPR • SPB • Stroke Ball Spline • SPBR/SPBF

NB Ball Splines