SFY02550 Ball Screw

SFY02550 Ball Screw

Product descriptions

The SFY2550 Ball Screw Assembly is a premier linear motion component engineered for industrial applications where extreme velocity, mechanical efficiency, and environmental protection are paramount.

As a highly specialized member of the "High-Lead" series, this assembly features a robust 25mm nominal diameter paired with an extraordinary 50mm lead. This unique 1:2 diameter-to-lead ratio allows the nut to travel a massive 50mm for every single 360-degree rotation. Consequently, the SFY2550 achieves hyper-velocity linear speeds-up to 100m/min-at relatively low motor RPMs. This mechanical advantage significantly reduces centrifugal forces, heat generation, and critical speed vibration ("shaft whip") over long strokes.

Furthermore, the SFY2550 is built to survive harsh manufacturing conditions. Its specialized "Y-Type" nut is equipped with a reinforced wiper system designed to aggressively block dust and abrasive debris. It is the ideal solution for large high-speed laser cutters, CNC routers, rapid-positioning gantries, and automated packaging lines.

Engineering Advantage

Featuring an aggressive 1:2 diameter-to-lead ratio, the SFY2550 directly rivals the speed of linear motors and belt drives, while maintaining the superior axial thrust and rigidity of a mechanical screw.

• Extreme Velocity at Safe RPMs: At merely 1,000 RPM, the SFY2550 achieves a linear velocity of 50 m/min, scaling to an impressive 100 m/min at 2,000 RPM. This extreme lead geometry allows the system to reach blistering traverse rates while keeping rotational speeds safely below the shaft's critical limit, preventing deflection and "whip."
• "Y-Type" Contaminant Armor: When a nut travels at 50 to 100 m/min, standard plastic seals tend to "hydroplane" over fine particulate matter, drawing it into the raceway. The SFY series mitigates this with a reinforced scraping mechanism that maintains rigid contact with the steep threads. This effectively excludes abrasive elements like wood chips, laser soot, and packaging debris.
• Acoustically Optimized Circulation: High-velocity operation typically generates significant mechanical noise. The SFY2550 utilizes a tangential internal end-cap ball return system, eliminating the metallic clatter associated with external-tube designs and ensuring remarkably quiet, smooth operation.

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