| 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 | 276 | 532 | 5.6 | 798 | 8.4 | - | - | 25 | 75 | 173 | 157 | 80 | 127 | 3 | 60 | - | 200 |
The SW 276 is a high-capacity coupling within the Snap Wrap (SW) series, designed for systems that require significant torque and power. Its primary advantage is the radially removable element, which allows for rapid maintenance. This design ensures that the flexible "spider" can be inspected or replaced without moving the motor or driving machine, preserving shaft alignment and minimizing operational downtime in heavy-duty industrial environments.
The SW 276 offers a substantial jump in torque capacity and structural size:
Torque Capacity:
Synthetic Rubber: 532 Nm.
Polyurethane: 798 Nm.
Power Rating: 5.6 kW at 100 rpm (using Synthetic Rubber).
Maximum Bore Diameter: 75 mm.
Pilot Drill Size: 25 mm.
Dimensions:
Outside Diameter ($\varnothing$A): 173 mm.
Overall Length (TL1): 200 mm.
Length thru' Bore (L1): 80 mm.
Gap (G): 3 mm.
Hub Material: Manufactured from high-tensile Cast Iron (Grade FG 260) for maximum strength and vibration damping.
The SW 276 functions as a fail-safe, flexible connection for large-scale industrial drives:
High-Load Transmission: Power is transferred via the compression of the elastomeric spider lobes between the heavy-duty jaws of the cast-iron hubs.
Energy Absorption: The coupling absorbs high-intensity shock loads and dampens torsional vibrations, protecting expensive motor windings and mechanical seals.
Radial Element Access: A retaining ring secures the "Snap Wrap" spider. By sliding this ring back, the element can be pulled out through the side, which is critical for the 75 mm shafts associated with this size, as moving such heavy equipment for maintenance is highly inefficient.
Exceptional Torque Handling: Capable of transmitting up to 798 Nm of torque, making it suitable for massive industrial motors.
Drastic Labor Savings: The radial removal system eliminates the need for repeated shaft realignment, saving hours of maintenance labor.
Fail-Safe Design: The jaw-on-jaw configuration ensures that power transmission continues even if the elastomer fails, preventing a sudden loss of load in critical applications.
Clean Operation: Requires no lubrication, making it ideal for industries where oil or grease contamination is prohibited, such as food or textile processing.
Rugged Durability: The cast-iron construction provides long-term resistance to oil, moisture, and abrasive industrial debris.
The SW 276 is a staple in the most demanding heavy-industry environments:
Primary Drive Systems: Used as the main coupling for high-horsepower industrial electric motors.
Heavy Duty Pumps: Ideal for high-flow municipal water pumps and industrial chemical processing.
Mining & Quarrying: Used in heavy-duty conveyor belts and material crushing units where start-up loads are massive.
Large Gearbox Connections: Provides a secure link between primary motors and large gear reducers in factory production lines.
The SW 276 is a heavy-duty solution for industrial operators requiring a combination of massive torque capacity (up to 798 Nm) and a 75 mm bore diameter. By utilizing the "Snap Wrap" maintenance system, it ensures that even the largest machinery can be serviced quickly and easily, keeping high-capacity production lines running with maximum reliability and efficiency.
