| Coupling | Synthetic Rubber | Polyurethane | H-Trans | Pilot Drill Size | Max. Bore D | ØA | Length thru' Bore L1 | ØB | Gap G | ØE | DBSE | Overall Length TL1 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Size | Rated Torque (Nm) | kW @ 100 rpm | Rated Torque (Nm) | kW @ 100 rpm | Rated Torque (Nm) | kW @ 100 rpm | SW/RRS | L | ||||||||
| RRS | 110 | 89 | 0.93 | 133.5 | 1.4 | 222.5 | 2.3 | - | 42 | 96 | 85 | 43 | 76 | 3 | 35 | 90 | 108 |
The RRS 110 is a heavy-duty "Radially Removable Spacer" (RRS) coupling designed for industrial applications where high power transmission must be paired with extreme maintenance accessibility. It is a step up into the high-capacity range of the spacer series, engineered to bridge a 90 mm gap between shafts. This coupling is the gold standard for large process pumps and heavy machinery where the "back pull-out" maintenance method is used to save time and labor costs.
The RRS 110 offers a massive increase in torque and bore capacity compared to the 100 series, making it suitable for large industrial motors.
| Specification | Metric Value |
| Rated Torque (Synthetic Rubber) | 89 Nm |
| Rated Torque (Polyurethane) | 133.5 Nm |
| Rated Torque (H-Trans) | 222.5 Nm |
| Power Rating @ 100 RPM | 0.93 kW (Rubber) / 1.4 kW (PU) |
| Maximum Bore Capacity (D) | 42 mm |
| Outside Diameter (ØA - SW/RRS) | 96 mm |
| Distance Between Shaft Ends (DBSE) | 90 mm |
| Overall Length (TL1) | 108 mm |
The RRS 110 is designed as a three-piece "drop-out" assembly:
High-Torque Bridging: The coupling uses a robust center spacer to span the 90 mm DBSE. This provides enough clearance to pull the pump's rotating assembly or replace mechanical seals.
Flexible Power Flow: Torque is transmitted through a "Snap Wrap" elastomeric element. This element sits between the jaws and can be replaced radially without needing to move the motor.
Advanced Maintenance: By simply removing the retaining ring and bolts, the center spacer can be removed radially (sideways). This leaves the motor and the driven machine firmly in place, eliminating the need for a full re-alignment after service.
Superior Bore Capacity: With a 42 mm maximum bore, the RRS 110 can accommodate the larger shafts found on high-horsepower industrial motors.
Massive Torque Support: When equipped with an H-Trans element, this coupling can handle up to 222.5 Nm, making it one of the strongest in the spacer category.
Reduced Operating Costs: By cutting down the time required for seal and bearing changes, the RRS 110 significantly lowers industrial downtime.
Vibration Damping: The thick elastomeric element is excellent at absorbing shock loads and protecting sensitive gearbox teeth and pump bearings.
Fail-Safe Reliability: The metal-to-metal jaw contact ensures that even if the elastomer fails, the drive stays connected for a safe, controlled equipment shutdown.
The RRS 110 is built for the most demanding fluid handling and power transmission tasks:
Large-Scale Centrifugal Pumps: Ideal for high-flow water treatment and chemical process pumps.
Industrial Cooling Systems: Connecting large motors to fans or cooling towers where maintenance access is difficult.
Pulp and Paper Industry: Used in thick stock pumps and agitators that require frequent maintenance.
Mining and Material Handling: Suitable for medium-duty conveyor drives and feeders.
The RRS 110 is the ultimate "heavy-duty" spacer coupling for professional maintenance teams. It provides a massive 42 mm bore and a torque rating that can reach 222.5 Nm, all while maintaining a compact 96 mm outside diameter. If your application requires high power and frequent maintenance access, the RRS 110 is the most efficient choice for your drive train.
