Overview
The Falk 1015G Seal End Flex Hub is a compact, high-torque coupling hub designed for demanding industrial shaft alignment applications. Manufactured by Rexnord (formerly Falk Corporation), this flexible coupling component transfers power between two shafts while accommodating misalignment, protecting equipment and extending service life. The sealed design minimizes lubricant leakage and environmental contamination, making it ideal for food processing, packaging, and enclosed machinery environments.
Key Features
- Sealed Design: Four-point seal prevents lubricant leakage and contamination ingress
- Misalignment Tolerance: Handles offset, angular, and axial misalignment without binding
- Extended Service Life: Triple-crowned gear teeth and superior grease formulation reduce wear and maintenance intervals
- Versatile Bore Range: Accommodates shaft diameters from 3/4″ to 2-3/8″, supporting multiple OEM configurations
- AGMA Interchangeable: Drop-in compatible with other standard AGMA-rated gear coupling brands
Technical Specifications
- Hub Diameter: 3.400 inches
- Hub Length (Through Bore): 1.94 inches
- Bore Range: 3/4″ to 2-3/8″ (various bore sizes available)
- Maximum Speed: 6,500 RPM
- Torque Rating: 20,790 in-lbs (continuous duty)
- Material: Steel
- Style: Seal End Flex Hub with grease lubrication
- Keyway Option: Rough Stock Bore (RSB) or pre-bored/keyed configurations available
Typical Applications
The Falk 1015G Seal End Flex Hub is commonly deployed in:
- Food processing and beverage production equipment
- Packaging machinery and conveyor systems
- Industrial fans, blowers, and HVAC equipment
- Pump and motor assemblies
- Material handling and automation drives
- Printing and paper mill machinery
Compatibility & Replacements
Compatible With
- Falk Lifelign G Series gear couplings
- Standard AGMA-rated coupling sleeves and rigid hubs
- Electric motors and mechanical power sources up to 6,500 RPM
- Horizontal and close-coupled mounting configurations
- OEM equipment originally specified with 1015G couplings
Replaces / Drop-In Replacement For
- Falk 1015G flex hub variants with different bore specifications
- Equivalent AGMA standard flex hubs from competing manufacturers
- Verify your original equipment documentation for exact bore and seal configuration
Works With
- Falk Lifelign G20 double-engagement coupling systems
- Sleeve EXP series (3/4″, 1-1/8″, 1-3/8″, 1-3/4″, and 2-3/8″ bore variants)
- Standard grease gun and maintenance tooling
- Thermal heating equipment for interference-fit installation






