The S51FCZ-125187 is a rigid Fairloc® shaft coupling made of 303 stainless steel, designed for precise alignment of rotating shafts. It has bore diameters of 0.1248 inch on both sides, an overall length of 0.625 inch, and a hub radius of 0.273 inch. The bore and shaft must have a clearance fit of 0.0001 to 0.0008 inch. Both hubs are concentric within 0.001 T.I.R. and are secured by #2-56 socket head cap screws. The coupling is rated for inch-sized applications with tight positioning requirements.
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 | Rigid Couplings |
| Product Number | S51FCZ-125187 |
| Product Name | 0.1248" BoreS, 0.625" OVERALL LENGTH RIGID TYPE FAIRLOC COUPLING |
| Units | English Design Arrangement |