Ball Screw Fixed End Support (BK15)

Overview

The BK15 Fixed End Support is a critical component for any CNC machine or ball screw assembly. Designed to provide superior axial and radial load support, this support unit ensures your ball screw operates with minimal deflection and maximum precision. This results in accurate positioning and stable performance even under heavy loads. The BK15 support is an essential upgrade for makers, hobbyists, and professionals looking to build or enhance their CNC routers, mills, or 3D printers.

Key Features

• High Load Capacity: Engineered to handle both axial and radial loads, ensuring optimal performance under demanding conditions.
• Enhanced Stiffness: The bearing design offers greater stiffness than conventional bearings, maintaining accurate position and reducing flex.
• Precision Engineering: Manufactured to tight tolerances for smooth, consistent motion and long-term reliability.
• Easy Installation: Designed for straightforward mounting, making it simple to integrate into your existing or new CNC builds.
• Durable Construction: Built from high-quality materials to withstand the rigors of continuous operation.

Technical Specifications

• Model: BK15
• Type: Fixed End Support Unit
• Shaft Diameter: 15mm (for ball screw shaft)
• Bearing Type: Angular contact ball bearing (typically 7000 series, check specific model)
• Load Capacity: High axial and radial load rating (specific values may vary; consult datasheet)
• Mounting: Flange mount with bolt holes for secure attachment
• Material: Cast iron or steel housing, hardened steel bearing

Applications & Use Cases

• CNC Routers and Mills: Provides rigid support for ball screws, ensuring precise cutting and engraving.
• 3D Printers: Enhances print quality by reducing Z-axis wobble and improving layer accuracy.
• Automation Systems: Ideal for linear motion systems requiring high precision and repeatability.
• Robotics: Suitable for joints and actuators where accurate positioning is critical.
• Laser Cutters and Engravers: Maintains alignment and accuracy during high-speed operations.

What's Included

• 1x BK15 Fixed End Support Unit (with bearing pre-installed)
• Mounting bolts (if included; otherwise, standard M5 or M6 bolts are typically used)

Compatibility

• Compatible with 15mm diameter ball screws and lead screws.
• Pairs perfectly with BF15 floating end supports for a complete support system.
• Works with standard NEMA 23 or NEMA 34 stepper motors via coupling (not included).

MOKWN Recommendation

For optimal performance, pair the BK15 Fixed End Support with a BF15 Floating End Support on the other end of your ball screw. This combination ensures balanced support and minimizes backlash. Whether you're upgrading an existing machine or building from scratch, the BK15 from MOKWN is a reliable choice for achieving professional-level precision in your projects.