Overview
The Falk 1020T31/35 spacer hub grid coupling (part 0744082) is a horizontally-split spacer hub designed for use with Falk Steelflex grid couplings. This T31 spacer hub accommodates a 1020T coupling size and features a 1.625 inch hub length. The spacer hub design provides bolted spacing between hubs to allow drop-out clearance for pump impellers and other driven equipment, making it ideal for moderate misalignment and shock-load applications. Manufactured by Rexnord’s Falk division, this coupling component meets industrial-grade performance standards for reliable power transmission.
Key Features
- Spacer hub design with 1020T coupling size compatibility
- Steel hub material construction rated for 460 in-lbs torque capacity and 3600 RPM maximum
- Solid bore with tapered grid teeth for secure shaft engagement
- 6.00 inch height dimension for standard mounting
- Horizontally-split cover for easy maintenance and grid replacement
- Compatible with standard Falk Steelflex grid couplings (T31/T35 series)
Technical Specifications
- Torque Capacity: 460 in-lbs at rated speed
- Maximum RPM: 3600
- Hub Length (Centerline): 1.625 inches
- Height: 6.00 inches
- Hub Material: Steel
- Coupling Type: Grid coupling spacer hub
- Bore Type: Solid
- Part Number: 0744082
- Model Designation: 1020T31/35
- Weight: 1.76 lbs
- Lubrication: Compatible with Falk Long Term Grease (LTG)
Typical Applications
The Falk 1020T31/35 spacer hub is widely used in industrial equipment including centrifugal pumps, motors, compressors, fans, and other rotating machinery. The spacer hub configuration is particularly suited for applications requiring drop-out clearance on the pump impeller side, allowing maintenance personnel to remove pump internals without disassembling the entire coupling. It accommodates moderate angular, parallel, and axial misalignment while transmitting torque reliably through the elastomeric grid element.
Compatibility & Replacements
Compatible With
- Falk Steelflex 1020T series grid couplings (all configurations)
- 1020T31 and 1020T35 coupling assemblies
- Standard industrial motor and pump shafts with appropriate bore sizes
- Falk grid coupling maintenance kits and spare parts
- Rexnord coupling systems and components
Replaces / Drop-In Replacement For
This spacer hub is a direct replacement for OEM part 0744082. Verify coupling assembly configuration with your system integrator to ensure proper centerline length and bore diameter before ordering. Similar spacer hub models with different centerline lengths (such as CL 2.375″ or CL 3.344″) are available as alternatives for different mounting configurations.
Works With
- Falk Steelflex elastomeric grid coupling elements
- Standard maintenance tools (screwdriver, pry bar) for grid removal and installation
- Falk Long Term Grease (LTG) lubricant and equivalent ISO VG 220 gear oils
- Dial indicator alignment equipment per Falk installation manuals
- Rexnord coupling installation and maintenance documentation
