The A 5D28M2512 is a zinc alloy die-cast hub for use with spline-type flexible couplings, designed to accommodate angular offsets up to 2° and lateral offsets up to 0.2 mm, with an operating temperature range of -20°C to +60°C. It features a 12 mm bore with a tolerance of +0.027/0 mm, matches the 25 series coupling, and supports a maximum rated torque of 1.5 Nm at 15,000 rpm. The hub is electrically isolated, requires no lubrication, and allows blind assembly. Dimensions include an outside diameter of 41 mm, a length of 17 mm, and a spline width of 10 mm.
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 5D28M2512 |
| Product Name | Hub for Use with Spline Type Flexible Coupling, 25mm Outside Diameter, 41mm Length When Assembled, 12mm Bore, Material: Zinc Alloy Die Casting. |
| Rated Torque | 13.27 In-lbs (15.31 kg-cm) |
