BALL RUNNER BLOCK RESIST NRII KWD-020-SLS-C1-N-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-020-SLS-C1-N-0 (R201281404) is a ball runner block designed for precision and corrosion resistance, suitable for applications with space restrictions in the transverse direction. This component is part of the Ball Rail Systems and is made from Resist NRII, a material compliant with DIN EN standards that ensures durability against corrosive elements such as water-based media, acidic materials, alkali, saline solutions, and high humidity environments. The product features a slimline width (SLS format), standard height, and long length. It has a low preload (Preload class C) and standard accuracy class N. The runner block body is made of corrosion-resistant steel without any ball chain or preservation and comes without initial lubrication. It also lacks attachment elements on both left and right front reference edges. This model boasts an overall length of 52 mm and offers interchangeability with guide rails across all accuracy levels. Its patented entry zone increases travel accuracy by up to six times while reducing frictional oscillations, especially under external loads. The B.RUNN. BLOCK NRII can be used with all SNS ball guide rails and supports long-term lubrication over several years through its minimum quantity lubrication system with an integrated oil reservoir. The optimized entry zone geometry paired with a high number of balls reduces variations in elastic deflection, enhancing performance. Attachments can be mounted from above the runner block which has a height of 28 mm. It operates within an ambient temperature range of -10°C to 100°C for short periods. Dynamic load capacity C and static longitudinal moment load capacity ML are determined based on DIN ISO standards for 100,000 m travel; however, for comparison purposes when only 50,000 m are stipulated, values from tables should be multiplied by 1.26. The product also features multiple lube fittings with metal threads on all sides ensuring versatility in maintenance processes. In summary, the Bosch Rexroth B.RUNN. BLOCK NRII KWD-020-SLS-C1-N-0 (R201281404) offers maximum precision in demanding environments where corrosion resistance is paramount while maintaining high load ratings in all main loading directions.