• 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 C280 HUB 60MM 18X4.4MM 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 24.50 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 61.00 lb

Weight (Complete Coupling w/ Min. Bores)

N/A 49.00 lb

Dimensional Data

Bore Size

N/A 60.00 mm


N/A C280

Keyway Size (W x D)

N/A 18 x 4.4 mm

Length thru Bore

N/A 3.120 in79.25 mm

Outside Diameter

N/A 7.500 in190.50 mm

Min. Bore (Dimensions ID1/ID2)

N/A 1.250 in32.00 mm

Max. Bore (Dimensions ID1/ID2)

N/A 3.000 in76 mm

Overall Length of Hub

N/A 4.750 in120.65 mm

Dimension CD

N/A 7.810 in198.37 mm

Dimension CL

N/A 0.120 in3.05 mm

Dimension G

N/A 1.630 in41.40 mm

Dimension HD

N/A 5.500 in139.70 mm

Dimension SL

N/A 1.560 in39.62 mm

Cubic inches

N/A 267.18750 in³

Performance Data

Nominal Torque

N/A 7560.00 in·lb854.17 N·m

Max. Speed

N/A 3500 rpm

Moment of Inertia WR2

N/A 362.000 lb·in²

Rated HP at 100 rpm

N/A 12.00 hp

Rated HP at 1,200 rpm

N/A 114.00 hp

Rated HP at 1,800 rpm

N/A 216.00 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



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