The S50GT2MA25H0811 is a compact antivibration flexible coupling designed for high-torque, high-response servo systems, featuring aluminum hubs and a molded rubber (FKM) center to absorb vibration while maintaining torsional rigidity and zero backlash. It accommodates shafts with 8 mm and 11 mm bores, has an overall length of 32 mm, and supports a maximum angular misalignment of 1.5°, lateral offset of 0.15 mm, and axial motion of ±0.2 mm. The coupling operates within a temperature range of -10°C to +120°C, has a rated torque of 4 N·m at 25,000 rpm, an inertia of 2.7 × 10⁻⁶ kg·m², and a torsional stiffness of 390 N·m/rad, with a weight of 29 grams. Shaft bore tolerances follow h7: 8 mm and 10 mm bores are 0/-0.015 mm. The design provides excellent electrical insulation and is suited for high-speed, precise positioning applications.
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 | S50GT2MA25H0811 |
| Product Name | Antivibration Flexible Couplings, 8 / 11mm Bores, 32mm Overall Length, Hub Material: Aluminum, Center Material: Molded Rubber |
| Rated Torque | 35.4 In-lbs (40.82 kg-cm) |
