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  • BRAND:
  • SKU: 1797156
  • MODEL: 68514444547

C276 HUB 2-1/4 1/2X1/4KW

$155.59 Each


  • Typically ships in: 1 day
  • Weight: 16.5 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 C276 HUB 2-1/4 1/2X1/4KW
Hub Style3
Coupling TypeJaw
MaterialCast Iron
# of Jaws3
Elastomeric MemberSOX (NBR) Rubber
Weight16.50 lb
Weight (Complete Coupling w/ Max. Bores)47.00 lb
Weight (Complete Coupling w/ Min. Bores)36.00 lb
Dimensional Data
Bore Size 2 1/4 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 Diameter6.180 in156.97 mm
Min. Bore (Dimensions ID1/ID2)0.875 in22.00 mm
Max. Bore (Dimensions ID1/ID2)2.875 in73 mm
Overall Length of Hub4.750 in120.65 mm
Dimension CD6.530 in165.86 mm
Dimension CL0.120 in3.05 mm
Dimension G1.630 in41.40 mm
Dimension HD5.000 in127.00 mm
Dimension SL1.560 in39.62 mm
Cubic inches181.41390 in³
Performance Data
Nominal Torque4716.00 in·lb
Max. Speed4200 rpm
Moment of Inertia WR2188.000 lb·in²
Rated HP at 100 rpm7.50 hp
Rated HP at 1,200 rpm90.00 hp
Rated HP at 1,800 rpm135.00 hp
Rated HP at 3,600 rpm270.00 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 6.180 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