Ball Spline Catalog Section 0 pages

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BALL SPLINES
Lead Screws, Ball Screws and Ball Splines
Ball Splines
A Thomson Precision ball spline consists of mating inner and outer
races containing concave axial races and a complement of bearing
balls. The balls provide the only physical contact between the inner
and outer races. Unlimited rolling travel is achieved by diverting the
path of the balls at the extremes of the outer race into the end cap
return circuit. This provides a closed loop through which the balls
recirculate when the races are displaced axially relative to each
other. The bearing balls resist radial displacement resulting from
torque loads.
• Efficiency — coefficient of friction .007 maximum
• Hardness — minimum of RC 56 in ball race
• Lash — .005 inch maximum standard play perpendicular to
rotational axis
Need a quote or have a question about an
application? Contact us in North America at:
Phone:
Fax:
Email:
540-633-3549
540-639-4162
thomson@danahermotion.com