The ball runner block is highly precise and characterized by the following product features:
Size 20
Format FKN: Width = flange, length = short, height = low
Runner block body made of unalloyed steel CS
Preload class C0: Preload-free
Accuracy class H: High
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 = 55.0 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

• Area of application: For cases of restricted space avialability in the upward and longitudinal direction
• 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
• Can be used on all SNS/SNO ball guide rails
• Integrated all-round sealing
• 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