The S51CBYM080120 is a rigid precision shaft coupling made of brass with a black oxide finish, designed to connect two aligned shafts for torque transmission. It has opposing bores of 8 mm and 12 mm, each with H7 tolerance, and is secured with set screws. The coupling is 25 mm long, has an outer diameter of 22 mm, and a total length of 12.5 mm. The bore concentricity is within 0.013 mm T.I.R., and it complies with ISO projection standards.
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 | S51CBYM080120 |
| Product Name | 25mm long Brass - Black ox. Rigid Coupling With Opposing Bores of 12 & 8mm. |
| Material | Brass - Black ox. |
| Units | Metric Design Arrangement |
| Bore 1 | 0.4724 inch (12 mm) |