Overview
The Falk 1020G coupling hub is a flexible gear coupling component manufactured by Rexnord for demanding industrial applications. With a 1.8735-inch finished bore and keyway configuration, this hub is engineered to transmit torque between misaligned shafts while accommodating radial, angular, and axial runout. The G-series design provides a proven solution for machinery requiring reliable, torsionally rigid power transmission across a wide range of speeds and loads.
Key Features
- 37,800 in-lbs (4,278 Nm) continuous torque capacity
- 5,600 maximum RPM rating for smooth operation across industrial equipment
- Full-flex design accommodates parallel shaft misalignment
- Steel construction for durability and long service life
- 4.14-inch hub diameter with 2.44-inch length through bore
- Finished 1.8735-inch bore with keyway for secure mounting
Technical Specifications
The Falk 1020G coupling hub integrates into standard gear coupling assemblies. Key dimensional and performance parameters ensure compatibility with Falk G-series sleeves and complete coupling systems.
Typical Applications
- Motor-driven pumps and compressors
- Industrial fan and blower systems
- Gearbox input and output shafts
- Conveyor and material handling equipment
- Machine tool drives requiring precision shaft alignment
Compatibility & Replacements
Compatible With
- Falk G-series flexible coupling sleeves (sizes 1010G through 1070G)
- Standard industrial motor mounts and flexible coupling systems
- Shafts with 1.8735-inch bore diameter and standard keyway
Replaces / Drop-In Replacement For
- Rexnord Falk part number 744673 (as specified)
- Equivalent 1020G hubs with 1.8735-inch bore configuration
Works With
- Falk Lifelign gear coupling systems
- G20 and G32 coupling sleeve designs
- Standard industrial lubrication systems (refer to Falk maintenance guidelines)
