Overview
The Steelflex 1100T grid coupling hub is a double-flexing, close-coupled hub manufactured by Rexnord Falk for demanding industrial power transmission applications. This component is part of the Steelflex grid coupling family and is specifically engineered to accommodate bore sizes up to 4 inches, making it suitable for a wide range of equipment and machinery requiring reliable torque transmission.
Key Features
- Double-flexing design ideal for four-bearing systems
- Horizontally split cover for easy grid replacement without moving equipment
- Torque rating of 6280 Nm (4640 lb-ft)
- Maximum bore capacity of 4 inches with minimum bore of 1.625 inches
- Allowable speed of 2440 rpm (1100T10 configuration)
- Interference fit construction (sizes 1100T and larger furnished without setscrew)
Technical Specifications
The 1100T hub features a 5.590-inch outside barrel diameter and 4.75-inch length. Installation requires heating to 275°F (135°C) using an oven, torch, induction heater, or oil bath due to its interference fit design. The hub is engineered to Rexnord tolerances and accommodates both imperial and metric shaft key configurations per ANSI/AGMA standards.
Typical Applications
Steelflex 1100T coupling hubs are deployed in motor-pump sets, compressor drives, fan systems, and general industrial machinery requiring flexible, torsionally rated power transmission. The close-coupled design and high torque capacity make it suitable for applications including:
- Centrifugal pump drives
- Blower and fan systems
- Compressor couplings
- Gearbox input/output shafts
- Generator coupling applications
Compatibility & Replacements
Compatible With
- Falk Steelflex Grid Coupling assemblies (T10 and T20 series)
- Standard industrial motors and gearboxes with compatible shaft dimensions
- Four-bearing system configurations
- Equipment requiring close-coupled flexible coupling solutions
Replaces / Drop-In Replacement For
The 1100T hub is the standard coupling component for Falk Steelflex 1100 series couplings. Verify the exact part configuration (bore size, fit type) matches your replacement requirements before ordering. Consult the original equipment documentation or contact Rexnord for confirmed replacement information.
Works With
- Falk Steelflex grid coupling half-assemblies
- Rexnord lubrication products (Falk Long Term Grease recommended)
- Standard shaft keys and taper shaft configurations
- Industrial maintenance programs using standard coupling tools
