BALL RUNNER BLOCK RESIST NRII KWD-025-FNS-C2-P-0

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The Bosch Rexroth B.RUNN. BLOCK NRII KWD-025-FNS-C2-P-0 (R200122204) is a high-precision, corrosion-resistant ball runner block designed for applications requiring rigidity and precision. This model is part of the Ball Rail Systems product group and features a Resist NRII construction, ensuring durability against corrosive media, making it suitable for environments with high humidity or exposure to water-based, acidic, or saline solutions. The ball runner block is characterized by its size 25 profile and FNS format—indicating a flanged width, normal length, and standard height. It is constructed from corrosion-resistant steel according to DIN EN standards. The runner block has an accuracy class P (Precision) and preload class C (Medium preload), without a ball chain or initial lubrication. The straight lube connection is loosely attached for ease of maintenance. This model boasts excellent dynamic characteristics due to its optimized entry zone geometry and high number of balls, which reduce variation in elastic deflection. It has self-aligning capabilities to compensate for misalignments and offers the same high load ratings in all four main directions of loading. The B.RUNN. BLOCK NRII KWD-025-FNS-C2-P-0 can be utilized with all SNS Ball Guide Rails and comes in five common sizes. For sealing options, it incorporates standard seals SS for effective protection against contaminants like dirt and chips while maintaining low friction. For special requirements, low-friction seal LS or double-lip seal DS options are available as accessories. This ball runner block system is engineered for long-term lubrication over several years and includes an integrated reservoir for oil lubrication. It provides maximum precision suitable for clean rooms, PCB manufacturing, packaging industries, cleaning plants, electroplating lines, vapor degreasing plants, refrigeration systems, and more where corrosion resistance is critical.