- Product Types of LovejoyProduct Types of Lovejoy
- Couplings & Power Transmission Parts CatalogCouplings & Power Transmission Parts Catalog
- Curved Jaw CouplingsCurved Jaw Couplings
- GS Series (Backlash Free Curved Jaw) ComponentsGS Series (Backlash Free Curved Jaw) Components
- GS Series Aluminum Hubs - Inch (Imperial) BoresGS Series Aluminum Hubs - Inch (Imperial) Bores
- Item Number 68514476538
Item Number 68514476538, Curved Jaw Clamping Hub w/ Double Slot w/o Keyway
68514476538Curved Jaw Clamping Hub w/ Double Slot w/o KeywayLovejoy
VIEW CAD DRAWING
Measurement and Control Systems
The GS Series spider features a straight center of the spider tooth, providing higher stiffness due to coupling prestress. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider center provide high-speed capability.The jaws of the hubs and the spider legs are chamfered to provide easy assembly. The GS Series coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of the spider ensure proper spacing of hubs and spider.
Proper installation of the coupling can provide isolation of electrical currents. Check the CL dimension listed on this page to ensure the proper spacing between spiders and hubs.
The GS Series coupling has spiders available in four different shore hardnesses. Each spider offers benefits for different vibratory, environmental, and torque transmission requirements.
- The torsional stiffness of the GS Series coupling provides zero backlashes needed for the accuracy for measurement and control systems. The low torques of these applications give the GS Series the ability to provide zero backlashes due to the elastomeric pre-stress.
- The GS Series provides a zero backlash, flexible connection for servo and positioning drives. An added benefit of the GS Series is its damping capabilities.
For applications that have vibrations at critical speeds, the GS Series coupling can provide a zero backlash solution for vibration problems.
- The GS Series coupling is used in main spindle drives for machine tools. Torque spikes and cyclical loading are handled by the GS Series by damping or by shifting the vibratory frequency range to a non-critical speed range.
The GS Series spider features a straight center of the spider tooth, providing higher stiffness due to coupling prestress. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider center provide high-speed capability.The jaws of the hubs and the spider legs are chamfered to provide easy assembly. The GS Series coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of the spider ensure proper spacing of hubs and spider.
Proper installation of the coupling can provide isolation of electrical currents. Check the CL dimension listed on this page to ensure the proper spacing between spiders and hubs.
The GS Series coupling has spiders available in four different shore hardnesses. Each spider offers benefits for different vibratory, environmental, and torque transmission requirements.
Unit of Measure
Notes
Disclaimer |
N/A 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. |
Specifications
Description |
N/A GS38/45B-HUB-AL-1-3/4-DSC |
Hub Style |
N/A B |
Type |
N/A Curved Jaw Coupling Hubs |
Hub Material |
N/A Aluminum |
Style |
N/A Bored |
Color |
N/A Silver |
Bore Type |
N/A Solid |
Coupling Type |
N/A Jaw |
Weight |
N/A 1.3 lb |
Dimensional Data
Bore Size |
N/A 1 3/4 in |
Spider Size |
N/A 38/45 |
Set Screw Style Coupling Size (Dimension T) |
N/A M8 |
Length thru Bore (Dimensions LTB1/LTB2) |
N/A 1.770 in44.96 mm |
Outside Diameter |
N/A 3.150 in80.00 mm |
Overall Coupling Length |
N/A 4.490 in114.05 mm |
Max. Bore (Dimensions ID1/ID2) |
N/A 1.75 in44 mm |
Dimension CL |
N/A 0.120 in3.05 mm |
Dimension G |
N/A 0.940 in23.88 mm |
Dimension HD |
N/A 3.15 in80.01 mm |
Clamping Bolt Style Coupling Bolt Location Size (Dimension SL1) |
N/A 0.790 in |
Dimension TH |
N/A 0.160 in4.06 mm |
Clamping Bolt Style Coupling Bolt Size |
N/A M8 |
Cubic inches |
N/A 17.56283 in³ |
Performance Data
Normal Temperature Range (with 92 Shore A spider) |
N/A -40 to 194 ºF |
Max Temp (with 92 Shore A spider) |
N/A -50 to 248 ºF |
Nominal Torque (with 92 Shore A spider) |
N/A 1680 in·lb |
Max Torque (with 92 Shore A spider) |
N/A 3360 in·lb |
Clamping Bolt Style Coupling Torque |
N/A 221.25 in·lb |
Max. Speed |
N/A 4750 rpm |
GS Series Hub Design Description
GS Series Hub Design Description |
N/A
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