The A 5Z28M2508 is a flexible spline coupling in the 25 series, designed to transmit torque while compensating for angular misalignment up to 2° and lateral offset up to 0.2 mm. It features a zinc alloy die-cast hub, polyurethane spline, and is rated for speeds up to 15000 rpm with a maximum torque of 1.5 Nm. The coupling operates between -20°C and +60°C, provides electrical isolation, dampens shock and vibration, requires no lubrication, and supports blind assembly. The bore diameter is 8 mm with a tolerance of +0.022/0 mm. Its overall length is 41 mm, and it is built using the standard metric component configuration for the 25 series.
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 5Z28M2508 |
| Product Name | Flexible Spline Coupling, 41mm Overall length and 8 mm Bores |
| Rated Torque | 13.27 In-lbs (15.31 kg-cm) |
| Rated Speed | 15000 rpm |
| Units | Metric Design |
