Overview
The Falk Rexnord 1040T31 shaft hub is a precision-engineered grid coupling component for Falk’s T31 and T35 series spacer couplings. These Steelflex hubs accommodate straight bore configurations and are designed to mount directly on motor and pump shafts in industrial power transmission applications. The 1040T size hub delivers proven durability and performance across a wide range of industrial machinery.
Key Features
- Falk Steelflex® construction for reliable torsional flexibility and shock absorption
- Compatible with T31 spacer coupling and T35 close-connected coupling designs
- 3.09-inch barrel outside diameter (OD) with 2.12-inch length through bore
- Steel construction for strength and longevity in demanding industrial environments
- Accommodates bore diameters from 0.5 to 2.125 inches (with proper machining)
- Non-stock standard item available through authorized distributors
Technical Specifications
- Coupling Size: 1040T
- Hub Type: T31/T35 Series Standard Shaft Hub
- Barrel Outside Diameter: 3.09 inches
- Length Through Bore: 2.12 to 2.13 inches
- Bore Range: 0.5 to 2.125 inches (customer-machined for application)
- Material: Steel
- Coupling Type: Grid (Steelflex)
- Torque Capacity: 2,200 ft-lbs
- Maximum Speed: 3,600 rpm
- Weight: Approximately 5.25 lbs
Typical Applications
Falk 1040T31 shaft hubs are widely used in:
- Motor-to-pump power transmission in industrial processes
- Compressor and fan drive systems requiring flexible coupling
- General machinery applications demanding reliable torque transmission with shock absorption
- HVAC and water handling equipment installations
- Manufacturing and processing equipment where vibration isolation is necessary
Compatibility & Replacements
Compatible With
- Falk T31 series spacer coupling designs
- Falk T35 series close-connected coupling configurations
- Falk R35 half-spacer coupling applications
- Falk grid coupling elastomer grids (standard Steelflex)
- Industrial motors and pump shafts (when machined to application specifications)
Replaces / Drop-In Replacement For
- Falk 1040T31/35 hub configurations (various bore sizes)
- Original equipment manufacturer (OEM) 1040T shaft hubs in T31/T35 systems
Works With
- Falk Steelflex grid elastomers for 1040T coupling size
- Flanged and spacer coupling hardware kits (1040T series)
- Standard industrial shaft diameters and keyway configurations
- Motor and driven equipment mounting standards (NEMA, IEC-compatible installations)
