HercuFlex® Labyrinth Seal Flange Style (FXL)
In extreme high contamination environments, Lovejoy has transformed the HercuFlex coupling to integrate an advanced seal design when performance degradation is not tolerable. This advanced gear coupling still encompasses the torque and misalignment capacities that make the HercuFlex coupling an industry leader.
- Unequaled bore and torque capacity
- 1.5° of misalignment per gear mesh
- Improved fastener corrosion resistance
- Advanced seal design intensifying contamination resistance
- Interchangeable with standard AGMA flange interface
Resources
HercuFlex® Labyrinth Seal Flange Style (FXL) Additional Resources
Note: Performance Data below is for Standard FXL Series only. Please download catalog for dimensional data, and for performance data on other HercuFlex type gear couplings.
| Size | Nominal Torque (in-lbs) |
Nominal Torque (N-m) |
Max Bore (in) |
Max Bore (mm) |
Max Running Speed (RPM) – UnBalanced |
Max Running Speed (RPM) – Balanced |
| 1 | 8,000 | 904 | 1.563 | 40 | 6,000 | 9,000 |
| 1.5 | 15,000 | 1,695 | 2.125 | 55 | 5,500 | 8,250 |
| 2 | 39,000 | 4,406 | 2.813 | 71 | 5,000 | 7,500 |
| 2.5 | 69,300 | 7,830 | 3.37 | 85 | 4,400 | 6,600 |
| 3 | 118,000 | 13,332 | 4.063 | 100 | 4,000 | 6,000 |
| 3.5 | 177,000 | 19,998 | 4.75 | 120 | 3,500 | 5,250 |
| 4 | 270,900 | 30,608 | 5.675 | 145 | 3,000 | 4,500 |
| 4.5 | 370,700 | 41,883 | 6.375 | 167 | 2,700 | 4,050 |
| 5 | 508,600 | 57,464 | 7.5 | 190 | 2,500 | 3,750 |
| 5.5 | 670,700 | 75,779 | 8.375 | 212 | 2,200 | 3,300 |
| 6 | 1,050,000 | 118,634 | 9.375 | 238 | 2,100 | 3,150 |
| 7 | 1,425,000 | 161,003 | 11.00 | 280 | 2,000 | 3,000 |
- For HercuFlex Standard Flange Sleeve Gear Coupling: see HercuFlex FX Series
- For HercuFlex Continuous Sleeve Gear Coupling: see HercuFlex CX Series
- For Lovejoy’s Legacy Sier Bath Gear Couplings: see Lovejoy / Sier Bath Gear Couplings
- For High Speed: see High Performance Gear Couplings
- For Large Jaw Coupling: see H Type
- For “Infinite Life”: see Disc Couplings
- Or, for other coupling types: see Coupling Preselection Guide
- For a broad overview on gear couplings in general, please consider reading: Gear Coupling Tutorial – Part I: Overview.
- To get a better understanding of gear coupling configurations, please read: Gear Coupling Tutorial – Part II: Configurations.
- To learn about mounting gear couplings, check out: Gear Coupling Tutorial – Part III: Mounting the Coupling.
- For tips and tricks on coupling selection and availability, see: Gear Coupling Tutorial – Part IV: Selection & Availability.
- To help troubleshoot or understand gear coupling failure modes, review: Gear Coupling Tutorial – Part V: Failure Analysis (with photos).