The S50HWWM30H0909 is a split-hub, one-piece helical coupling made of 17-4PH stainless steel, designed for zero backlash and constant velocity in misaligned shaft applications. It has a bore diameter of 9 mm, an outside diameter of 30 mm, and a length of 38 mm. The coupling accommodates up to 5° angular offset, 0.25 mm lateral offset, and ±0.25 mm axial motion. Its momentary torsional torque is 9.5 N·m for nonreversing applications and 2.4 N·m for reversing applications. Torsional inertia is 24 × 10⁻⁴ kg·cm², based on the smallest standard bore. The coupling features an integral clamp and shaft relief for high fatigue resistance and adaptability to varying speeds.
Couplings Types
Couplings can be divided into two categories: flexible and rigid. Both types are used to connect two rotating shafts driven by a motor and transmit torque and angular velocity; however, flexible couplings and shafts are designed to accommodate angular misalignment, angular offset, axial movement, and a variety of load conditions. A flexible coupling is pliable due to the twisting and compression of a durable, adaptable material, like neoprene, rubber, or silicone.
Flexibility can also be achieved with thin metal disks, corrugated aluminum bellows (bellows couplings), or even a stainless-steel ball (miniature ball couplings). Some materials can provide vibration reduction, as in our precision flexible antivibration couplings.
Rigid couplings are limited by comparison; rigid couplings are used when shafts are already positioned in precise lateral and angular alignment. Their rigid design inhibits shaft misalignment. They can generally transmit more power than flexible couplings due to their rigidity.
Even the most complicated application challenges can be solved by our skilled engineers, they will identify the best coupling solution for your application. SDP/SI provides a comprehensive range of rigid and flexible couplings. Many of our precision couplings, including the Miniature Bellows Coupling and the Neo-Flex Coupling, have our patented Fairloc® Hub design, which solves phasing, timing, positioning, and frequent removal problems. For more about the easily adjustable Fairloc® hub design click here.
Precision Magnetic Disk Couplings
Precision Flexible Bellows Couplings
Precision Miniature Ball Couplings
Precision Flexible Antivibration Couplings
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Flexible Couplings |
| Product Number | S50HWWM30H0909 |
| Product Name | One Piece Zero Backlash Constant Velocity, Split-Hub Helical Coupling |
| Coupling Type | Helical / Slit |
| Rated Torque | 42.04 In-lbs (48.47 kg-cm) |
| Units | Metric Design |
| Bore Diameter | 0.3543 inch (9 mm) |
