The S50MST-S02P18P18 is a stainless steel set screw type flexible coupling with a 0.1875 inch bore and an overall length of 0.728 inches. It compensates for up to 2° of angular misalignment and has a maximum torsional torque rating of 2.66 lbf·in. The coupling weighs 9.886 oz and has a moment of inertia of 1.1 × 10⁻² oz·in². It features two set screws positioned at 90° and a lateral misalignment compensation of ±0.012 inches. The bore tolerance is +0.0009/−0.0000 inches. It is rated for a maximum speed of 52,000 rpm and has a static torsional stiffness of 9.886 lbf·in/deg.
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 | S50MST-S02P18P18 |
| Product Name | 0.1875" Bore, 0.728" Overall Length, MST Pin Hub Coupling |
| Coupling Type | Helical / Slit |
| Rated Torque | 2.66 In-lbs (3.07 kg-cm) |
| Rated Speed | 52000 rpm |
| Torsional Stiffness | 9.89 in-lb/deg (18.62 mN-m/arcmin) |