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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.


  • RSB (Rough Stock Bore) hub has No Keyway or set screw hole, it is not useable as shown and must be machined to proper bore tolerances Hub includes inside sleeve and is drilled and tapped for collar bolts. Non-standard bores available – consult Lovejoy Engineering.
  • Jaw coupling hubs are standard with one set screw, for two set screws see RRS & RRC sections.



N/A C226 HUB 7/8 N/KW N/SS RSB

Hub Style

N/A 3

Coupling Type

N/A Jaw


N/A Cast Iron


N/A Gray/Metallic

Bore Type

N/A Rough Stock Bore

# of Jaws

N/A 3

Elastomeric Member

N/A SOX (NBR) Rubber


N/A 13.00 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 29.00 lb

Weight (Complete Coupling w/ Min. Bores)

N/A 22.00 lb

Dimensional Data

Bore Size 

N/A 7/8 in


N/A C226

Thread (Dimension T)

N/A 1/2-13

Length thru Bore

N/A 2.750 in69.85 mm

Outside Diameter

N/A 5.150 in130.81 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.875 in22.00 mm

Max. Bore (Dimensions ID1/ID2)

N/A 2.500 in64.00 mm

Overall Length of Hub

N/A 4.250 in107.95 mm

Dimension CD

N/A 5.500 in139.70 mm

Dimension CL

N/A 0.120 in3.05 mm

Dimension G

N/A 1.500 in38.10 mm

Dimension HD

N/A 4.120 in104.65 mm

Dimension SL

N/A 1.380 in35.05 mm

Cubic inches

N/A 112.72063 in³

Performance Data

Nominal Torque

N/A 2988.00 in·lb

Max. Speed

N/A 4800.00 rpm

Moment of Inertia WR2

N/A 74.000 lb·in²

Rated HP at 100 rpm

N/A 4.70 hp

Rated HP at 1,200 rpm

N/A 56.40 hp

Rated HP at 1,800 rpm

N/A 85.00 hp

Rated HP at 3,600 rpm

N/A 169.20 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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