The S50MFBMA20P08P08 is a set screw type bellows coupling with 8 mm bores on both sides, designed for zero backlash and maintenance-free operation in precision motion control applications. It features aluminum alloy hubs, a phosphor bronze bellows, and steel cap screws with a black oxide finish. The coupling has an overall length of 32 mm, a maximum torque rating of 0.8 N⋅m, and can accommodate a parallel shaft offset of up to 0.15 mm and an angular offset of up to 2 degrees. Its torsional stiffness is 180 N⋅m/rad, and it supports a maximum rotational speed of 19,000 rpm with a moment of inertia of 9.9 × 10⁻⁷ kg⋅m². The part weighs 16 grams.
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 | S50MFBMA20P08P08 |
| Product Name | Set Screw Type Bellows Couplings, 8 / 8mm Bores, 32mm Overall Length, Hub Material: Aluminum Alloy, Bellow Material: Phosphor Bronze |
| Coupling Type | Metal Bellows |
| Rated Torque | 7.08 In-lbs (8.16 kg-cm) |
| Rated Speed | 19000 rpm |
