The S50MSX-074H18H18 is a split hub flexible coupling with a 0.1875 inch bore and 0.787 inch overall length, designed for zero backlash and low moment of inertia in precision applications. Constructed from aluminum alloy ASTM 7075, it compensates for up to 5° angular offset, 0.002 inch lateral offset, and ±0.004 inch axial motion. It is rated for a maximum torsional torque of 8.85 lbf·in and a maximum speed of 33,000 rpm, with a torsional stiffness of 41.71 lbf·in/deg and a moment of inertia of 0.42 oz·in². The coupling uses #4-40 cap screws and is maintenance-free.
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 | S50MSX-074H18H18 |
| Product Name | 0.1875" Bore, 0.787" Overall Length, MSX Split Hub Coupling |
| Coupling Type | Helical / Slit |
| Rated Torque | 8.85 In-lbs (10.2 kg-cm) |
| Rated Speed | 33000 rpm |
| Torsional Stiffness | 41.71 in-lb/deg (78.54 mN-m/arcmin) |
