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LF Series Complete Coupling, Model 2 - Threaded Bore x Keyway Bore Timken 68514476211
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LF Series Complete Coupling, Model 2 - Threaded Bore x Keyway Bore Timken 68514476211
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- The LF Series coupling is designed with a unique and highly versatile elastomeric element. These can be easily integrated into a variety of coupling configurations to meet several application needs. LF Style elements are available in a variety of materials to match the necessary coupling dampening characteristics for tuning the systems critical speed away from the application operating speed.
The element can be connected axially to a flywheel adapter plate or flanged hub and radially to a cylindrical center hub using the appropriate bolts. Axial bolt styles include either socket head bolts with a special dry adhesive, or S-Style bolts, which are similar to dowel pins (seen picture below). The radial bolts are used to connect the element to the cylindrical hub. This unique design is remarkably simple, highly effective and gives the LF torsional coupling unmatched performance capabilities. The coupling selection should be verified with a Torsional Vibration Analysis (TVA) of the system.
Specifications
| Description | LF4-CP-HTR60A-MDL2-1"-14THDX1-1/8 |
| Coupling Size | LF4 |
| Type | Complete Coupling |
| Material | High Temperature Rubber (HTR) |
| Weight | 3.30 lb |
| Color | Metallic |
| Bore Type | Finished Bore |
| Connection Type A x B | 1 x 1 1/8 in |
| Coupling Type | Torsional |
Dimensional Data
| Set Screw Size | M8 |
| Outside Diameter | 3.94 in |
| Overall Length | 2.52 in |
| Dimension BE | 0.160 in |
| Dimension ER | 0.940 in |
| Dimension R | 0.470 in |
| Length thru Bore | 1.180 in |
| Min. Bore (Dimensions ID1/ID2) | 0.470 in |
| Flange Diameter (Dimension FD) | 2.560 in |
| Dimension HD | 1.770 in |
| Axial Hole and Division | 3 at 120º |
| Cubic inches | 39.11947 in³ |
Performance Data
| Operating Temperature Range | -40 to 194 ºF |
| Nominal Torque | 440.00 in·lb |
| Max. Torque | 1100.00 in·lb |
| Allowable Continuous Vibratory Torque | 180.00 in·lb |
| Max. Speed | 7000.00 rpm |
| Max. Angular Misalignment | 3.00 º |
| Max. Parallel Misalignment | 0.060 in |
| Wind-Up Angle at Nominal Torque | 5.00 º |
| Wind-Up Angle at Max. Torque | 12.00 º |
| Dynamic Torsional Stiffness | 7500.00 in·lb/rad |
| Static Angular Stiffness | 21.30 in·lb/deg |
| Static Axial Stiffness | 430.00 lb/in |
| Static Radial Stiffness | 2860.00 lb/in |
| Shore Hardness | 60A |
Model Specifications
| Model Specifications | Model 2 and 2/S |
Torsional Element Specifications
| Torsional Element Specifications | There are two different rubber element materials available, High Temperature Rubber (HTR) and Neoprene (CR). Both elements are torsionally soft and are placed into compression during assembly. Rubber under compression can carry up to 5 times the amount of torque as non-compressed elements. The elements effectively accommodate shock, misalignment, and vibration plus minimize harmful radial and axial forces on the connected equipment. Neoprene (CR) is used in environments that are hostile to High Temperature Rubber (HTR). |
Features
| Features | Wide range of standard designs and materials |
Notes
| Notes | For Hytrel, dynamic torsional stiffness values are non-linear with respect to torque. Value given is for 100% of nominal torque. |
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