HercuFlex® Flange Style (FX)
- 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

Note: Performance Data below is for Standard FX Series only. Please download catalog for dimensional data, and for performance data on other HercuFlex type gear couplings.
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 | 11,300 | 1,277 | 1.875 | 48 | 6,000 | 9,000 |
1.5 | 26,100 | 2,949 | 2.438 | 62 | 5,500 | 8,250 |
2 | 44,850 | 5,067 | 3.063 | 78 | 5,000 | 7,500 |
2.5 | 79,700 | 9,005 | 3.625 | 92 | 4,400 | 6,600 |
3 | 135,700 | 15,332 | 4.25 | 108 | 4,000 | 6,000 |
3.5 | 203,550 | 22,998 | 5.00 | 127 | 3,500 | 5,250 |
4 | 311,540 | 35,199 | 5.875 | 149 | 3,000 | 4,500 |
4.5 | 427,460 | 48,296 | 6.75 | 171 | 2,700 | 4,050 |
5 | 584,890 | 66,084 | 7.75 | 197 | 2,500 | 3,750 |
5.5 | 771,300 | 87,145 | 8.625 | 220 | 2,200 | 3,300 |
6 | 1,207,500 | 136,429 | 9.50 | 241 | 2,100 | 3,150 |
7 | 1,638,750 | 185,154 | 11.25 | 287 | 2,000 | 3,000 |
class=”tftable” cellspacing=”0″ cellpadding=”3″>SizeNominal Torque (in-lbs)Nominal Torque (N-m)Max Bore (in)Max Bore (mm)Max Running Speed (RPM) – UnBalancedMax Running Speed (RPM) – Balanced111,3001,2771.875486,0009,0001.526,1002,9492.438625,5008,250244,8505,0673.063785,0007,5002.579,7009,0053.625924,4006,6003135,70015,3324.251084,0006,0003.5203,55022,9985.001273,5005,2504311,54035,1995.8751493,0004,5004.5427,46048,2966.751712,7004,0505584,89066,0847.751972,5003,7505.5771,30087,1458.6252202,2003,30061,207,500136,4299.502412,1003,15071,638,750185,15411.252872,0003,000
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