BK12/BF12 Ball Screw Support

BK12/BF12 Ball Screw Support

Product descriptions

The BK12/BF12 Support Set is a heavy-duty, industrial-grade mounting solution engineered specifically for 16mm ball screw assemblies, including the SFU1605, SFU1610, and SFE1616 series. This matched set provides the professional "Fixed-Floated" geometry required for high-precision linear motion.

Engineering Fundamentals: 

• The BK12 (Fixed End): Positioned at the motor end, the BK12 acts as the system's anchor. It is engineered to absorb 100% of the axial (push/pull) thrust loads generated during machine operation. By rigidly anchoring this end, the BK12 ensures zero-backlash positioning and maintains consistent accuracy.
• The BF12 (Floated End): Positioned at the distal end, the BF12 supports the radial weight of the ball screw to prevent sagging. Critically, it allows the shaft to "float" axially within the housing.

The Engineering Logic: Ball screws generate significant frictional heat during high-speed operation, which causes the steel shaft to elongate. If both ends were rigidly clamped, this thermal expansion would force the screw to bow (buckle), leading to internal binding and potential bearing failure. The "Fixed-Floated" design allows for this natural thermal growth while maintaining radial stability, ensuring smooth and reliable performance over the entire stroke.

Key Features & Engineering Advantages
Complete Fixed-Floated Set: Includes one BK12 fixed-side support block and one BF12 floating-side support block, providing the critical mounting geometry required for professional linear motion axes.
Precision Compatibility: Specifically engineered for 16mm diameter ball screws (e.g., SFU1605/1610 series), ensuring optimal fit and operational performance.
High-Durability Construction: Manufactured from high-strength carbon steel or premium aluminum alloy. Surfaces feature a blackened finish for enhanced corrosion resistance and a professional industrial aesthetic.
Optimized Bearing Performance: Equipped with high-precision angular contact ball bearings, pre-loaded with high-performance grease to effectively minimize friction, internal clearance, and backlash.
Reliable Protection: Features specialized integral seals to retain lubrication and shield the rolling elements from dust and debris.
Seamless Installation: The compact "pillow block" design utilizes standardized dimensions, allowing for rapid, direct installation onto machine frames or gantry plates.

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