The FMM Type coupling consists of one universal hub (FMM Mill Type), one standard F Type flex hub, two standard F Type flex sleeves, and one accessory kit. This coupling is supplied with exposed bolts as standard, with shrouded bolts are available upon request through size 5.5.
The FMM Type Mill Universal hub accommodates AISE Mill Motor frame sizes (with the two sleeves and second hub being standard F Type).
| Items |
 69790401129 FMM Type Mill Universal Hubs - Rough Stock Bore |
69790401130 FMM Type Mill Universal Hubs - Rough Stock Bore |
69790400173 FMM Type Mill Universal Hubs - Rough Stock Bore |
69790400185 FMM Type Mill Universal Hubs - Rough Stock Bore |
69790400197 FMM Type Mill Universal Hubs - Rough Stock Bore |
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| Description | FMM-1-HUB-RSB | FMM-1.5-HUB-RSB | FMM-2-HUB-RSB | FMM-2.5-HUB-RSB | FMM-3-HUB-RSB | |||||
| Bore Size | 0.440 in11.00 mm | 0.690 in18.00 mm | 0.940 in24.00 mm | 1.440 in37.00 mm | 1.440 in37.00 mm | |||||
| Max. Bore (Dimensions ID1/ID2) | 1.625 in42 mm | 2.125 in56 mm | 2.750 in73 mm | 3.250 in85 mm | 4.000 in107 mm | |||||
| Size | 1 | 1 1/2 | 2 | 2 1/2 | 3 | |||||
| Hub Style | Exposed Bolt | |||||||||
| Type | Gear Coupling Hubs | |||||||||
| Hub Material | AISI 1045 | |||||||||
| Set Screw Style Coupling Size (Dimension T) | No Setscrew | |||||||||
| Style | Unbored | |||||||||
| Overall Length | 5.810 in147.57 mm | 6.560 in166.62 mm | 8.060 in204.72 mm | 9.72 in246.89 mm | 10.780 in273.81 mm | |||||
| Color | Metallic | |||||||||
| Nominal Torque | 7600 in·lb850 N·m | 18900 in·lb2140 N·m | 31500 in·lb3560 N·m | 56700 in·lb6410 N·m | 94500 in·lb10700 N·m | |||||
| Bore Type | Rough Stock Bore | |||||||||
| Max. Speed (Unbalanced) | 6000 rpm | 5500 rpm | 5000 rpm | 4400 rpm | 4000 rpm | |||||
| Max. Speed (Balanced) | 9000.00 rpm | 8250.00 rpm | 7500.00 rpm | 6600.00 rpm | 6000.00 rpm | |||||
| Dimension D | 3.060 in77.72 mm | 3.970 in100.84 mm | 4.860 in123.44 mm | 5.840 in148.34 mm | 6.840 in173.74 mm | |||||
| Dimension FD | 4.56 in115.82 mm | 6.00 in152.40 mm | 7.00 in177.80 mm | 8.38 in212.85 mm | 9.44 in239.78 mm | |||||
| Dimension HD | 2.310 in58.67 mm | 3.000 in76.20 mm | 4.000 in101.60 mm | 4.630 in117.60 mm | 5.630 in143.00 mm | |||||
| Distance between Shaft Ends (Dimension BSE) | 0.130 in3.30 mm | 0.130 in3.30 mm | 0.130 in3.30 mm | 0.190 in4.83 mm | 0.190 in4.83 mm | |||||
| Length Through Bore of Universal Hub (LTB1) | 4.000 in101.60 mm | 4.500 in114.30 mm | 5.500 in139.70 mm | 6.500 in165.10 mm | 7.000 in177.80 mm | |||||
| Parallel Misalignment | 0.056 in | 0.060 in | 0.085 in | 0.105 in | 0.115 in | |||||
| Coupling Type | Gear | |||||||||
| Weight | 7.60 lb | 7.60 lb | 15.00 lb | 25.00 lb | 36.00 lb | |||||
| Complete Coupling Weight | 12.00 lb | 24.00 lb | 45.00 lb | 71.00 lb | 104.00 lb | |||||
| Cubic inches | 21.34440 in³ | 40.50000 in³ | 88.00000 in³ | 139.33985 in³ | 221.87830 in³ | |||||
| Max. Angular Misalignment | 1.50º per Gear Mesh | |||||||||
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