A 5R28M25 is a spline-type flexible coupling for the 25 series, consisting of a polyurethane spider and zinc alloy die-cast hubs, designed to transmit torque while compensating for angular misalignment up to 2° and lateral misalignment up to 0.2 mm. It operates between -20°C and +60°C, supports up to 15,000 rpm, and has a rated torque of 1.5 Nm. The coupling is electrically isolated, requires no lubrication, and allows blind assembly. The bore diameter is 6 mm with a tolerance of +0.027/0 mm, and the keyway dimensions are L=17 mm, S=5 mm, l1=10 mm, l2=12 mm, and w=10 mm. It is suitable for use in applications requiring vibration damping and high rotational speeds.
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 5R28M25 |
| Product Name | Assemble with any A 5D28-25-25.. series Hubs, A complete coupling require two hubs and a spider. |
