| Coupling | Power Rating | Pilot Drill Size | Max. Bore D | ØA | Length thru' Bore L1 | ØB | Gap G | ØE | DBSE | Overall Length TL1 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Size | Synthetic Rubber | Polyurethane | H-Trans | SW/ RRS | L | |||||||||||
| Rated Torque (Nm) | kW@ 100 rpm | Rated Torque (Nm) | kW@ 100 rpm | Rated Torque (Nm) | kW@ 100 rpm | ||||||||||||
| SW | 280 | 782 | 8.2 | 1173 | 12.3 | - | - | 30 | 80 | 208 | 192 | 80 | 140 | 3 | 70 | - | 200 |
The SW 280 is an industrial-grade coupling engineered for heavy-duty power transmission. As a key model in the Snap Wrap (SW) series, it is designed for environments where machinery cannot be easily moved. The radial removal feature allows maintenance teams to replace the flexible element in minutes without dismantling the motor or the driven equipment, ensuring that critical production lines experience minimal downtime.
The SW 280 offers a significant increase in power and structural capacity over smaller models:
Torque Capacity:
Synthetic Rubber: 782 Nm.
Polyurethane: 1173 Nm.
Power Rating: 8.2 kW at 100 rpm (using Synthetic Rubber).
Maximum Bore Diameter: 80 mm.
Pilot Drill Size: 30 mm.
Dimensions:
Outside Diameter ($\varnothing$A): 208 mm.
Overall Length (TL1): 200 mm.
Length thru' Bore (L1): 80 mm.
Gap (G): 3 mm.
Hub Material: Built from high-grade Cast Iron (Grade FG 260) for maximum strength.
The SW 280 functions as a heavy-duty flexible bridge between high-powered shafts:
Compression Drive: Power is transferred as the cast-iron jaws compress the elastomeric spider lobes, providing a secure and constant flow of torque.
Torsional Resilience: The thick elastomeric insert dampens the harsh vibrations and shock loads typical of large industrial motors, protecting bearings and sensitive seals.
Snap Wrap Maintenance: The "SW" design utilizes a retaining ring that, when moved, allows the flexible element to be removed radially (from the side). This is a vital feature for the 80 mm shafts used with this model, as it avoids the heavy labor of moving the motor for a simple part replacement.
Extreme Torque Handling: Capable of transmitting up to 1173 Nm of torque, making it ideal for the most demanding industrial drives.
Reduced Maintenance Costs: The radial-removal system eliminates the need for expensive and time-consuming shaft realignment.
Fail-Safe Security: The interlocking jaw design ensures that if the elastomer fails under extreme stress, the coupling will continue to transmit power until the machine can be safely shut down.
Maintenance-Free Operation: Requires no lubrication or grease, keeping the workspace clean and reducing recurring costs.
Industrial Durability: Specifically engineered to resist oil, dirt, and moisture in harsh factory or outdoor environments.
The SW 280 is used in large-scale industrial machinery:
High-Horsepower Motors: Connecting large electric motors to primary drive shafts.
Heavy Industrial Pumps: Reliable for use in massive water management or chemical processing pumps.
Crushers and Grinders: Absorbs the violent shock loads found in mining and material processing equipment.
Large Fans and Blowers: Ideal for high-capacity industrial ventilation systems.
The SW 280 is the ultimate high-torque solution for operators requiring an 80 mm bore capacity and up to 1173 Nm of torque. By combining the brute strength of high-grade cast iron with the smart convenience of the Snap Wrap maintenance system, it ensures your heavy machinery remains protected and productive with minimal interruption.
