GS Type – Standard Curved Jaw Coupling

  • Backlash free capability (for applications requiring precision & accuracy)
  • Fail-safe (will still perform if elastomeric “spider” fails)
  • No metal to metal contact
  • Resistant to oil, dirt, sand, moisture, and grease
GS Type Coupling

Resources

GS Type – Standard Curved Jaw Coupling Additional Resources

The GS Series is available with Aluminum or Steel hubs, 4 different spider materials (80A, 92A, 95/98A, & 64D shore), and can accommodate bores up to 75 mm.
  • Keyway With Set Screw (KW) – Standard Lovejoy method of securing a hub to a shaft. Clamping style recommended for backlash free torque transmission
  • Without Keyway, With Set Screw – Set screw used to secure hub to shaft. This hub design should be used in applications with non-reversing and low torque characteristics.
  • Clamping Hub With Single Slot Without Keyway (C) – Zero backlash, clamping style for torque transmission. Torque capacity of hub depends on bore size.
  • Clamping Hub With Single Slot With Keyway (CWK) – Zero backlash, clamping style with keyway for torque transmission. Useable in applications featuring reversing loads.
  • Clamping Hub With Double Slot Without Keyway (DSC) – Transmits torque utilizing a double split clamp to attach hub to shaft. Zero or minimum backlash. Torque capacity of coupling determined by bore size.
  • Clamping Hub With Double Slot With Keyway (DSCK) – Transmits torque utilizing a double split clamp to attach hub to shaft. Zero or minimum backlash.
  • Hub With Frictional Locking (LD) – This hub utilizes a shaft locking device to allow for shaft engagement. This design features bolts tightened on the jaw side of the hub.

Please download catalog, as torque is highly dependent on coupling hub type selection.

Spider Type

Color

Temperature Range

Stock Sizes

Typical Applications

 

 

Normal

Max

 

 

80 Shore A GS

Blue

-50°F to 176°F     (-45°C to 80°C)

-80°F to 248°F     (-62°C to 120°C)

14-24

Electric measuring systems

92 Shore A GS

Yellow

-40°F to 194°F     (-40°C to 90°C)

-50°F to 248°F     (-45°C to 120°C)

14-55

Electric measuring and control systems

95/98 Shore A GS

Red

-30°F to 194°F     (-34°C to 90°C)

-40°F to 248°F     (-40°C to 120°C)

 14-55

Positioning drives, main spindle drives, high load applications

64 Shore D GS

Green

-20°F to 230°F    (-29°C to 110°C)

-30°F to 248°F     (-34°C to 120°C)

 14-55

High load applications (torsionally stiff spider)

Please Note: CAD Files below can only be opened using a CAD Program. Some web browsers require you to right click the link and save to your device.

For additional documentation (in PDF form), please download the jaw coupling catalog or contact Lovejoy customer service

Size 3D CAD File Coupling Total Length Coupling Outer Diameter Hub Max Bore
in mm in mm in mm
14 1.38 35 1.18 30 0.63 16
19/24 2.60 66 1.57 40 0.94 24
24/32 3.07 78 2.2 56 1.25 32
28/38 3.54 90 2.56 65 1.5 38
38/45 4.49 114 3.15 80 1.75 45
42/55 4.96 126 3.74 86 2.13 55
48/60 5.51 140 4.13 105 2.31 60
55/70 6.30 160 4.72 120 2.75 70
65/75 7.28 185 5.31 135 2.94 75