Ball bearing guideway FNN series

25 mm20 mmsteel

The ball runner block is highly precise and characterized by the following product features: Size 25 Format FNN: Width = flange, length = normal, height = low Runner block body made of unalloyed steel CS Preload class C1: Low preload Accuracy class N: Standard Without ball chain Preserved Without initial lubrication Without attachment element, left (front reference edge) Without attachment element, right (front reference edge) 45° angular lube nipples loosely attached. Runner block body in standard version Overall length of the runner block = 81.0 mm Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy. • Area of application: For restricted upward space • Maximum precision • Patented entry zone increases the travel accuracy up to a factor of six • Significantly reduced frictional oscillations and low friction force level, particularly under external load • Long-term lubrication is possible over several years • Lube fittings with metal threads on all sides • End-face fastening thread for all attachments • Integrated all-round sealing • High torque load capacity • Preload classes: C0 (without preload, clearance) and C1 (moderate preload) • Optional integrated, inductive and wear-free measuring system • Optimized entry-zone geometry and high number of balls minimize variation in elastic deflection • Can be used on all SNS/SNO ball guide rails • Attachments on the ball runner block can be mounted from above and below