Which ball screw is the FK-15 compatible with?

The FK-15 is typically used for ball screws with a 20mm outer diameter (like the SFU2005 or SFU2010), provided the shaft end has been machined down to 15mm to fit the bearings.

What is the difference between FK and BK support units?

Both are fixed-side supports. FK units are flange-style, designed to be mounted through a hole in the frame, while BK units are pillow-block style, designed to be mounted on top of a flat surface.

Does the FK-15 come with a locknut?

Yes, our TriQuench FK-15 units are supplied with a precision locknut and a set screw to ensure the ball screw is securely pre-loaded against the bearings.

CNC Router Accessories✓ In Stock & Ready to Ship

FK-15 Ball Screw Support Unit | High-Precision Fixed-Side Bearing Housing

SKU / Model: TQ-FK15-SUP

Power RatingIndustrial Grade

Max SpeedUp to 60,000 RPM

Cooling MethodStandard Cooled

Interface / SpecP4 Precision Grade

The FK-15 Support Unit is a critical cornerstone for high-performance CNC machinery, designed specifically to secure the fixed end of a ball screw. Engineered to accommodate a 15mm shaft diameter (typically for 20mm ball screws), this unit features a robust housing of high-strength steel paired with precision-grade angular contact bearings. These bearings are arranged to handle both radial and high axial loads, ensuring zero-backlash operation and superior stability during rapid travel and high-torque milling.

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Detailed Technical Specifications

Technical Parameter	Engineering Specification Value
CATEGORY & BRAND	CNC Router Accessories \| TriQuench India

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Advanced Engineering Analysis: FK-15 Ball Screw Support Unit | High-Precision Fixed-Side Bearing Housing

FK-15 Ball Screw Support Unit | High-Precision Fixed-Side Bearing Housing

Detailed Technical Specifications

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