Aluminum Flexible Beam Shaft Coupler 19mm x 25mm for CNC and 3D Printers
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৳ 190.00৳ 220.00 (-14%)
This precision-machined aluminum flexible beam shaft coupler is engineered for high-accuracy motion control and mechanical alignment applications [Image Context]. Measuring 19mm in outer diameter and 25mm in length, it features a unique helical parallel-slit design that absorbs angular misalignment, parallel errors, and axial end-play while maintaining zero backlash [Image Context]. Crafted from high-strength aluminum alloy, this lightweight coupler reduces rotational inertia and dampens vibrations, making it an essential coupling link between stepper motors, servo motors, or ballscrews in DIY CNC routers, 3D printers, linear actuators, and precision robotics
Aluminum Flexible Beam Shaft Coupler (19mm OD x 25mm Length)
Product Overview
The Aluminum Flexible Beam Shaft Coupler is a high-precision mechanical linkage engineered to connect drive shafts, stepper motors, and lead screws with zero-backlash accuracy [Image Context]. Measuring 19mm in outer diameter (OD) and 25mm in length, this compact hardware component uses a specialized helical parallel-slit pattern cut into its core [Image Context]. This unique design allows the coupling to bend and flex slightly, absorbing structural angular misalignments, parallel displacement errors, and axial end-play, thereby protecting delicate motor bearings from premature wear and vibration fatigue [Image Context].
Key Features
- Helical Beam Flex Design: Precision spiral-cut channels provide optimal flexibility, absorbing mechanical misalignments without sacrificing rotational torque or angular accuracy [Image Context].
- Zero Backlash Operation: The single-piece metallic structure ensures direct, highly responsive power transmission, making it ideal for precision reversing cycles.
- Premium Aluminum Alloy Build: Machined from high-strength aluminum alloy, offering an optimal balance of low rotational inertia, high tensile strength, and excellent corrosion resistance [Image Context].
- Vibration and Shock Isolation: Acts as a mechanical dampener between driving and driven shafts, protecting stepper motors and ballscrews from sudden kinetic shocks.
- Dual Clamping Securement: Features two internal grub/set-screw pathways along the side walls to clamp down firmly on flat-milled or rounded motor drive shafts.
Technical Specifications
- Product Class: Flexible Beam / Helical Shaft Coupling [Image Context]
- Outer Diameter (OD): 19 mm [Image Context]
- Total Length: 25 mm [Image Context]
- Material Composition: High-Grade Anodized Aluminum Alloy [Image Context]
- Backlash Rating: 0 Arc-Seconds (Zero Backlash)
- Common Inner Bore Pairings: Frequently bored from 5mm to 8mm (e.g., 5mm to 8mm, 5mm to 5mm, 6.35mm to 8mm) to fit standard NEMA 17 stepper shafts and lead screws.
Ideal Applications
- Connecting NEMA 17 or NEMA 23 stepper motor shafts to Z-axis lead screws on FDM 3D printers.
- Linking rotary encoders, servo motors, and miniature ballscrews on CNC routers and laser engravers.
- Designing high-accuracy linear positioning rails, custom actuators, and robotic arms.
- Lab-grade automation machinery and academic mechanical engineering prototyping.
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