Overview
The Falk 1040T31 spacer hub coupling is a precision-engineered flexible coupling component designed for mechanical power transmission in industrial automation and motion control systems. This spacer hub assembly from Falk’s Steelflex grid coupling line provides torsional flexibility while accommodating shaft misalignment. The 1040T sizing with flexible hub construction makes it suitable for equipment requiring moderate torque transmission with vibration dampening characteristics.
Key Features
- Grid Coupling Design: Torsionally flexible grid mechanism absorbs shock loads and accommodates misalignment
- Steelflex Construction: Steel hub with smooth bore for direct shaft mounting
- 1040T Size Class: Rated for 2200 ft-lbs torque capacity
- Maximum Operating Speed: 3600 rpm for standard industrial duty
- Hardware Kit Included: Spacer hub with flange fastener set for complete assembly
- Vibration Dampening: Grid element absorbs transient loads protecting connected equipment
Technical Specifications
- Coupling Size Code: 1040T
- Hub Type: T31 Spacer Hub (T31/T35 Series compatible)
- Hub Material: Steel
- Hub Barrel Outside Diameter: 3.090 inches
- Length Through Bore: 2.13 inches
- Overall Length: 5.5 inches
- Torque Capacity: 2200 ft-lbs
- Maximum Speed: 3600 rpm
- Bore Type: Rough Stock Bore (RSB) — machined to customer specifications
- Bore Diameter Range: 0.5 to 2.125 inches
- Weight: 5.25 lbs (hub only)
- Coupling Style: Spacer (floating shaft design)
- Number of Set Screws: Typically zero (rough bore requires customer machining)
- Country of Origin: China
Typical Applications
The Falk 1040T31 spacer hub coupling is commonly used in:
- Pump and Motor Assemblies: Flexible coupling between electric motor and centrifugal pump
- Fan Drive Systems: Industrial ventilation and cooling systems requiring smooth torque transmission
- Blower Applications: Air handling equipment with moderate misalignment tolerance
- Compressor Drive Systems: Rotary and reciprocating compressor applications
- Conveyor Systems: Belt and chain drive systems with shock load absorption
- General Industrial Machinery: Any rotating equipment requiring flexible power transmission up to 2200 ft-lbs
Compatibility & Replacements
Compatible With
- Falk Steelflex Grid Coupling 1040T assemblies
- T31 and T35 series spacer coupling designs
- Industrial motors with foot-mounted or flange-mounted configurations
- Rexnord (parent company) coupling systems
- Standard industrial drive shafts 0.5 to 2.125 inches bore diameter
Replaces / Drop-In Replacement For
- Original Falk 1040T31 spacer hub components
- Equivalent Steelflex 1040T hub assemblies from prior production batches
- Note: Always verify bore size and keyway configuration with your system integrator before substitution
Works With
- Falk grid coupling elements and sleeves (1040T series)
- Standard keyway and set-screw shaft mounting systems
- Industrial bearing housings and shaft supports
- Standard flange fastener sets for T31/T35 series assemblies
- Field machining and boring operations for final bore configuration
