SFK Series Ball Screw

SFK Series Ball Screw

Product descriptions

The SFK Series Linear Screw is a specific configuration of a flanged ball screw assembly, characterized by a smaller diameter or compact size compared to the standard SFI series, and is classified under Linear Actuation Systems/Compact Drive Components. Engineered as a general-purpose, cost-effective solution for reliable linear motion in space-constrained environments, this high-precision, miniature ball screw converts rotary motion with high efficiency and low friction. The SFK series is further characterized by high-speed operation, reliability, high accuracy, and smooth movement, making it ideally suited for a wide range of industries and applications requiring short travel, a small operating environment, or a compact size.

Key Features and Advantages

The SFK Series Ball Screw is optimized for compact, cost-effective precision, offering the following features and advantages:

Integrated Mounting Flange: The ball nut features a permanent, machined-in flange with standardized bolt-hole patterns. This design provides the advantage of Rigid, Simple Mounting, allowing for direct bolting to the carriage, simplifying design, and ensuring a stiff connection in a smaller format.

Compact Size/Small Diameter: The series is designed for smaller screw diameters and a reduced overall envelope size. The advantage is significant Space & Weight Saving, which facilitates the miniaturization of equipment and reduces the mass of the moving carriage.

Single-Nut Design: This design utilizes one set of internal recirculating balls. Its primary advantage is that it is Cost-Effective, offering a lower cost and simpler design suitable for general precision requirements.

High Efficiency: The rolling contact minimizes friction, typically resulting in 90%+ efficiency. This reduces motor power requirements and significantly cuts down on heat generation compared to traditional sliding lead screws.

Backlash Options: The nuts are available with standard clearance or with a light preload (e.g., using oversized balls) to minimize or eliminate backlash for basic precision tasks. This offers the crucial flexibility to tune the assembly for cost (clearance) or for light precision (preload).

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