The S50MDS-248H75H75 is a split hub, zero backlash, single disk flexible coupling designed for torque transmission with high torsional stiffness and maintenance-free operation. It has a bore diameter of 0.7500 inches and an overall length of 1.811 inches. The coupling accommodates a maximum angular offset of 0.7° and axial motion of ±0.008 inches, with no lateral offset compensation. It features stainless steel pins and disks with aluminum alloy hubs and spacers. The coupling is rated for a static torque of 110.64 lbf·in, a maximum speed of 3000 rpm, a torsional stiffness of 648.90 lbf·in/deg, and weighs 8.82 oz. Its shaft tolerance is +.0000/-.0008 inch, and it uses a 1/4-20 cap screw for hub attachment.
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 | S50MDS-248H75H75 |
| Product Name | 0.75" Bore, 1.811" Overall Length, Zero Backlash slit type single Disk Flexible Couplings |
| Rated Torque | 111 In-lbs (128 kg-cm) |