BALL RUNNER BLOCK RESIST NRII KWD-025-FNS-C1-H-0

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth B.RUNN. BLOCK NRII KWD-025-FNS-C1-H-0 (R200121304) is a high-precision, corrosion-resistant ball runner block designed for use in various linear motion applications. This model features a Resist NRII body that ensures durability and resistance to corrosive environments, making it suitable for use in clean rooms and industries where exposure to water-based media, acidic materials, or saline solutions is common. The ball runner block boasts an FNS format which includes a width flange, normal length, and standard height. With its low preload class C and high accuracy class H, the B.RUNN. BLOCK NRII KWD-025-FNS-C1-H-0 offers smooth motion and precise positioning while maintaining rigidity and stability under load. It comes without a ball chain, initial lubrication or preservation, allowing for customization based on the specific lubrication needs of the application. This model exhibits excellent dynamic characteristics due to its optimized entry zone geometry and high number of balls which minimize variation in elastic deflection. The dynamic load capacity C and static torsional moment load capacity Mt are determined according to DIN ISO standards with values that can be compared by multiplying by 1.26 for real-world applications typically stipulated at 100 km travel. The Bosch Rexroth ball runner block is interchangeable with all SNS ball guide rails, offering flexibility in design configurations. It also features lube fittings with metal threads on all sides for easy maintenance and long-term lubrication potential over several years. In terms of sealing options, the standard SS seal provides uniform protection against contaminants while maintaining low friction during operation. For harsher environments or special requirements, other seal types such as LS (low-friction), DS (double-lip), FKM seals or cover plate wipers can be fitted as accessories. Overall dimensions include an overall length of the runner block at 63 mm and a height of 28 mm when combined with guide rails. The B.RUNN. BLOCK NRII KWD-025-FNS-C1-H-0 supports maximum accelerations up to 50 m/s² and operates within an ambient temperature range from -10°C up to +100°C (short-term permissible). With its robust construction and flexible design options, this ball runner block is well-suited for demanding linear motion tasks requiring precision under varied environmental conditions.