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Aluminum Spiral Spring Coupling – Flexible Helical Beam Shaft Coupler for Encoders & Stepper Motors
We offer worldwide shipping with various delivery options. Shipping costs and estimated delivery times depend on your location and the service you choose at checkout.
To learn more about our shipping options and delivery times, read our shipping policy.






We accept a wide range of secure payment methods for your convenience, including major credit cards, digital wallets, and other popular local payment methods.

No prepayment is required for your order. However, note that some custom or special-order items may require a prepayment. We will inform you of any such requirement during the ordering process.

Your satisfaction is important to us. If you are not completely satisfied with your purchase, you may be eligible for a refund or exchange. Please note that certain conditions and exceptions apply
Learn more about our policy for a detailed information.
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Achieve smooth, precise motion control with our Spiral Spring Couplings (Helical Beam Couplings). Designed for high-precision transmission systems, these couplings utilize a unique spiral-cut spring structure to connect two shafts while compensating for unavoidable misalignments. Unlike multi-part couplings, the spiral beam eliminates backlash entirely, ensuring that the rotary motion of the motor is transferred instantly and accurately to the driven component.
This coupling is the ideal choice for sensitive equipment like rotary encoders, small stepper motors, and tachometers, where absorbing vibration and protecting bearings from stress is critical.
HIGH FLEXIBILITY & COMPENSATION: The spiral cut design acts like a spring, effectively absorbing angular, radial, and axial misalignment between connected shafts. This reduces stress on motor bearings and extends equipment life.
VIBRATION DAMPING: The helical structure naturally dampens vibrations and shock loads, creating a smoother and quieter operation in precision control systems.


ZERO BACKLASH: The single-piece construction eliminates play, ensuring instantaneous torque transmission. Perfect for applications requiring precise positioning and reversibility.
MAINTENANCE-FREE: With no moving parts to wear out and no need for lubrication, this coupling offers a “fit and forget” solution for long-term reliability.

• Rated Torque (RT) • Permissible Eccentricity (PE) • Permissible Angular Misalignment (PAM) • Permissible Rotational Speed (PRS) • Permissible Axial Deviation (PAD) • Inertia Moment (IM)
| Operating temperature | -35°C to +80°C |
|---|---|
| Coupling Type | Spiral Spring Coupling |
We offer worldwide shipping with various delivery options. Shipping costs and estimated delivery times depend on your location and the service you choose at checkout.
To learn more about our shipping options and delivery times, read our shipping policy.






We accept a wide range of secure payment methods for your convenience, including major credit cards, digital wallets, and other popular local payment methods.

No prepayment is required for your order. However, note that some custom or special-order items may require a prepayment. We will inform you of any such requirement during the ordering process.

Your satisfaction is important to us. If you are not completely satisfied with your purchase, you may be eligible for a refund or exchange. Please note that certain conditions and exceptions apply
Learn more about our policy for a detailed information.
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