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LF Series Flange Hubs - Rough Stock Bore Timken 68514424507
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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.
Notes
| Disclaimer | Lovejoy: CAD Models are accurate envelope dimensions only. Features such as bore size and keyway are not rendered or are only representative. Contact Lovejoy Technical Support or refer to product catalogs for details. |
| Notes | For Hytrel, dynamic torsional stiffness values are non-linear with respect to torque. Value given is for 100% of nominal torque. |
Specifications
| Description | LF25-HUB FLNG-.79 RSB |
| Coupling Size | LF25 |
| Type | Torsional |
| Style | Flange |
| Weight | 12.50 lb |
| Color | Metallic |
| Bore Type | Rough Stock Bore |
Dimensional Data
| Rough Stock Bore Size | 0.790 in |
| Thread (Dimension T) | M14 |
| Hub Diameter | 3.350 in |
| Length thru Bore | 2.160 in |
| Min. Bore (Dimensions ID1/ID2) | 0.810 in |
| Max. Bore (Dimensions ID1/ID2) | 2.750 in |
| Dimension FD | 4.53 in |
| Dimension FOD | 6.690 in |
| Cubic inches | 96.67318 in³ |
Performance Data
| Operating Temperature Range | -40 to 194 ºF |
| Nominal Torque | 2790.00 in·lb |
| Securing Torque for Mounting Bolt | 7740.00 in·lb |
| Allowable Continuous Vibratory Torque | 1100.00 in·lb |
| Max. Speed | 5000 rpm |
| Speed | 5000.00 rpm |
| Max. Angular Misalignment | 3.00 º |
| Max. Parallel Misalignment | 0.080 in |
| Wind-Up Angle at Nominal Torque | 5.00 º |
| Wind-Up Angle at Max. Torque | 14.00 º |
| Dynamic Torsional Stiffness | 39800.00 in·lb/rad |
| Static Angular Stiffness | 62.00 in·lb/deg |
| Static Axial Stiffness | 800.00 lb/in |
| Static Radial Stiffness | 3400.00 lb/in |
| Shore Hardness | 60A |
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 |
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