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  • BRAND:
  • SKU: 1797177
  • MODEL: 68514444012

C280 HUB 1-7/8 1/2X1/4 KW

$191.03 Each


  • Typically ships in: 1 day
  • Weight: 26.0 lb
  • Free shipping on orders over $20

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Additional Description

  • A complete C Type coupling is comprised of two standard C Type hubs, one cushion set, and one collar with hardware.
Description C280 HUB 1-7/8 1/2X1/4 KW
Hub Style3
Coupling TypeJaw
MaterialCast Iron
# of Jaws3
Elastomeric MemberSOX (NBR) Rubber
Weight26.00 lb
Weight (Complete Coupling w/ Max. Bores)61.00 lb
Weight (Complete Coupling w/ Min. Bores)49.00 lb
Dimensional Data
Bore Size 1 7/8 in
Thread (Dimension T)1/2-13
Keyway Size (W x D)1/2 x 1/4 in
Length thru Bore3.120 in79.25 mm
Outside Diameter7.500 in190.50 mm
Min. Bore (Dimensions ID1/ID2)1.250 in32.00 mm
Max. Bore (Dimensions ID1/ID2)3.000 in76 mm
Overall Length of Hub4.750 in120.65 mm
Dimension CD7.810 in198.37 mm
Dimension CL0.120 in3.05 mm
Dimension G1.630 in41.40 mm
Dimension HD5.500 in139.70 mm
Dimension SL1.560 in39.62 mm
Cubic inches267.18750 in³
Performance Data
Nominal Torque7560.00 in·lb
Max. Speed3500 rpm
Moment of Inertia WR2362.000 lb·in²
Rated HP at 100 rpm12.00 hp
Rated HP at 1,200 rpm114.00 hp
Rated HP at 1,800 rpm216.00 hp
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.



OD 7.500 in

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may applied to any return with this manufacturer.

For more information please consult


Product's availability

State of California Proposition 65 Product Warning