The A 5Z 7-20808 is a flexible K-type coupling with a 1/4 inch bore, designed to transmit torque while accommodating angular and lateral misalignment and axial end play. It features steel hubs with zinc plating and a polyurethane body, rated for operation between 0°F and +180°F with a maximum speed of 3600 rpm. The coupling provides zero backlash, reduces bearing loads, and runs quietly. It has a maximum angular offset of 15° and a lateral offset of ±0.063 inch, with a torque capacity of 12 lbf-in. The coupling uses a precision swaged mechanical crimp and meets AGMA Class 2 bore tolerance.
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 | A 5Z 7-20808 |
| Product Name | 0.25" Bore,1.8125" Overall Length Polyurethane "K" Coupling |
| Rated Torque | 12 In-lbs (13.84 kg-cm) |
