| 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 | 226 | 327 | 3.4 | 490.5 | 5.1 | 817.5 | 8.6 | 25 | 70 | 153 | 137 | 70 | 119 | 3 | 51 | - | 178 |
The SW 226 is a premium industrial coupling within the Snap Wrap (SW) series. It is specifically engineered for machinery where shaft diameters are larger, offering a significant upgrade in bore size over the SW 225 while providing even greater torque handling. Its radially removable element design allows for "in-place" servicing, meaning the flexible spider can be replaced without moving the motor or disturbing the alignment of the connected equipment.
The SW 226 is built for heavy-duty industrial systems that demand precision and power:
Torque Capacity:
Synthetic Rubber: 327 Nm.
Polyurethane: 490.5 Nm.
H-Trans: 817.5 Nm.
Power Rating: 3.4 kW at 100 rpm (Synthetic Rubber).
Maximum Bore Diameter: 70 mm.
Pilot Drill Size: 25 mm.
Dimensions:
Outside Diameter ($\varnothing$A): 153 mm.
Overall Length (TL1): 178 mm.
Length thru' Bore (L1): 70 mm.
Gap (G): 3 mm.
Hub Material: Manufactured from high-tensile Cast Iron (Grade FG 260) for maximum durability.
The SW 226 serves as a flexible, fail-safe link between high-powered drive systems:
Compression Power: Torque is transmitted through the elastomeric spider, which is compressed between the precision-machined jaws of the cast-iron hubs.
Vibration Absorption: The flexible insert acts as a cushion, damping torsional vibrations and shock loads that could otherwise damage bearings or seals.
Radial Maintenance: By sliding back the retaining ring, the "Snap Wrap" element can be replaced radially from the side. This is a critical time-saver for large 70 mm shafts, where moving the machinery for maintenance would be extremely labor-intensive.
Large Bore Capacity: Accommodates drive shafts up to 70 mm, making it highly versatile for various industrial motor sizes.
Extreme Torque Reliability: Handles up to 817.5 Nm of torque with H-Trans inserts, suitable for heavy-duty start-stop cycles.
Downtime Prevention: The radial removal system allows for element replacement in minutes, keeping production lines operational.
Fail-Safe Performance: The metal-on-metal jaw contact ensures that if the elastomer fails, power transmission continues until a controlled shutdown can occur.
Low Maintenance: Requires no lubrication, which reduces environmental impact and operational costs.
The SW 226 is ideal for the most demanding mechanical drive systems:
High-Capacity Industrial Pumps: Used in large-scale fluid handling and wastewater treatment.
Heavy Conveyor Systems: Drives heavy-duty belts in mining, quarrying, and bulk logistics.
Material Processing: Reliable for use in heavy-duty mixers, grinders, and industrial agitators.
Main Transmission Lines: Connecting large electric motors to industrial gearboxes or fans.
The SW 226 is an essential component for any high-torque industrial environment requiring a 70 mm bore capacity. With its ability to handle up to 817.5 Nm of torque and its innovative Snap Wrap design, it provides a perfect blend of high-strength power transmission and extreme ease of maintenance.
