The S50MSKMS50K20K20 is a miniature slit-type flexible coupling with 20 mm bores on both sides, designed for zero backlash and high torsional stiffness in precision motion applications. It is made of stainless steel, has a maximum angular offset of 2°, and an axial offset capability of ±0.5 mm. The coupling measures 50 mm in outer diameter and 71 mm in length, weighs 730 grams, and has a torsional stiffness of 1400 N·m/rad. It is rated for a maximum torque of 15 N·m and a maximum speed of 12000 rpm, with a moment of inertia of 2.8 × 10⁻⁴ kg·m². It uses an M6 set screw for shaft retention.
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 | S50MSKMS50K20K20 |
| Product Name | 20mm & 20mm Bores (Side1 & Side2), Zero Backlash Miniature Slit Type Flexible Coupling |
| Coupling Type | Helical / Slit |
| Rated Torque | 133 In-lbs (153 kg-cm) |
| Rated Speed | 12000 rpm |
