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  • A complete C Type coupling is comprised of two standard C Type hubs, one cushion set, and one collar with hardware.
Unit of Measure



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.


  • Jaw coupling hubs are standard with one set screw, for two set screws see RRS & RRC sections.



N/A C276 HUB 2-5/8 N/KW

Hub Style

N/A 3

Coupling Type

N/A Jaw


N/A Cast Iron


N/A Gray/Metallic

# of Jaws

N/A 3

Elastomeric Member

N/A SOX (NBR) Rubber


N/A 16.50 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 47.00 lb

Weight (Complete Coupling w/ Min. Bores)

N/A 36.00 lb

Dimensional Data

Bore Size 

N/A 2 5/8 in


N/A C276

Keyway Size (W x D)

N/A No Keyway

Length thru Bore

N/A 3.120 in79.25 mm

Outside Diameter

N/A 6.180 in156.97 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.875 in22.00 mm

Max. Bore (Dimensions ID1/ID2)

N/A 2.875 in73 mm

Overall Length of Hub

N/A 7.870 in199.90 mm

Dimension CD

N/A 6.530 in165.86 mm

Dimension CL

N/A 0.120 in3.05 mm

Dimension G

N/A 1.630 in41.40 mm

Dimension HD

N/A 5.00 in127.00 mm

Dimension SL

N/A 1.560 in39.62 mm

Cubic inches

N/A 300.57419 in³

Performance Data

Nominal Torque

N/A 4716 in·lb

Max. Speed

N/A 4800.00 rpm

Moment of Inertia WR2

N/A 188.000 lb·in²

Rated HP at 100 rpm

N/A 7.5 hp

Rated HP at 1,200 rpm

N/A 90 hp

Rated HP at 1,800 rpm

N/A 135 hp

Rated HP at 3,600 rpm

N/A 270 hp

Spider Performance

Spider Performance

  • Nitrile Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant, resembles natural rubber in resilience and elasticity and operates effectively in temperature range of -40° to 212° F (-40° to 100° C). Good resistance to oil. Standard elastomer. (Also applies to SXB Cushions.)



  • Greater torque and bore capacity than the L-Line series jaw coupling
  • Elastomeric cushions are radially removable
  • Cushions available in SXB rubber and Hytrel
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