Ball Spline Nut, System of Measurement Metric, Inside Diameter 8 mm, Outside Diameter 16 mm, Self-Alignment Self-Aligning, Overall Length 25 mm, Material Carbon Steel, Series SSP, Static Load Capacity 644 lbf, Steady State Speed 4 m/sec, Maximum Operating Temperature 176 Degrees F, Inside Diameter Tolerance +0/-0.015 mm, Accelerated Speed -, Outside Diameter Tolerance +0/-0.011 mm