Overview
The Falk 1080T31 shaft hub is a precision-engineered coupling component manufactured by Rexnord/Falk for use in Steelflex T31 grid coupling assemblies. Sized at 1080T, this full spacer hub is ideal for pump applications and general industrial power transmission requiring reliable torque delivery and misalignment accommodation. When integrated into a complete T31 coupling system with grid and cover components, the 1080T31 provides flexible, damped power transmission with minimal maintenance requirements.
Key Features
- Full Spacer Design: Purpose-built for T31 grid couplings optimized for pump and industrial equipment applications
- Precise Hub Geometry: 4.120-inch outside barrel diameter and 3.50-inch length for exact fit with compatible grid and cover assemblies
- Flexible Power Transmission: Accommodates parallel, angular, and axial misalignment without producing bearing side loads
- Damping Capability: Reduces vibration and shock loads, protecting driven and driving equipment from transient overload conditions
- Low Maintenance Operation: When assembled with Falk Long Term Grease (LTG), no re-lubrication required for 5 years
- New in Box Condition: Factory-sealed, ready for immediate installation
Technical Specifications
- Model Number: 1080T31
- Coupling Series: Falk Steelflex T31
- Coupling Type: Full Spacer Grid Coupling Hub (Shaft Hub)
- Outside Barrel Diameter: 4.120 inches
- Hub Length (axial): 3.50 inches
- Design Application: Pump and General Industrial
- Maximum Operating Speed: Up to 10,000 RPM
- Misalignment Capacity: Parallel, Angular, and Axial (grid-dependent)
- Vibration Damping: Reduces peak/shock loads by up to 30%
- Lubrication: Requires Falk Long Term Grease (LTG) for optimized performance and 5-year extended lubrication life
- Material Construction: High-strength alloy steel hub with precision machining
- Condition: New in Box
Typical Applications
The Falk 1080T31 shaft hub is commonly used in:
- Pump Drives: Centrifugal and positive displacement pump applications requiring flexible coupling with damping
- Industrial Fans & Blowers: HVAC and process air handling systems benefiting from torsional flexibility and misalignment accommodation
- Compressor Drives: Gas and air compressor motor-to-compressor connections
- Conveyor Systems: Material handling and aggregate conveyor power transmission requiring shock absorption
- General Industrial Machinery: Any application requiring flexible, low-maintenance coupling with up to 10,000 RPM capability
Compatibility & Replacements
Compatible With
- Falk Steelflex T31 Grid Coupling Complete Assemblies (1080T sizing)
- Rexnord Falk grid couplings with matching 1080T size designation
- Grid coupling covers and grids sized for 1080T hubs
- Shaft bores up to 3.0 inches (for finished bore hubs); customizable per specification
- Motor and driven equipment shafts with appropriate bore diameter and keyway compatibility
Replaces / Drop-In Replacement For
- Original Falk 1080T31 hubs requiring replacement or spare stock
- Worn or damaged 1080T31 shaft hub components in existing Steelflex T31 assemblies
- Verify coupling serial numbers and hub type (T31 full spacer) before ordering to ensure exact replacement
Works With
- Falk Steelflex T31 Grid elements and grids
- Standard grid coupling covers and spacer assemblies for T31 design
- Falk Long Term Grease (LTG) — the recommended lubrication for extended life and 5-year warranty coverage
- Taper Lock bushings and finished bore configurations for various shaft diameters
- Compatible with pump flanges and equipment mounting provisions for 1080T couplings
