3D CAD and 2D Drawings

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  • Standard L Type coupling hub materials are either sintered iron (L035-L190) or cast iron (L225-L276).
  • The L Type coupling consists of two standard L Type hubs and one spider.
  • Unless stated otherwise, hub torque and horsepower ratings assume a SOX(NBR) rubber spider is being used.
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 L075 HUB 5/16 N/KW

Hub Style

N/A 1

Coupling Type

N/A Jaw


N/A Sintered Iron


N/A Metallic

# of Jaws

N/A 3

Elastomeric Member

N/A SOX (NBR) Rubber


N/A 0.47 lb

Weight (Complete Coupling w/ Min. Bores)

N/A 1.00 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 0.80 lb

Dimensional Data

Bore Size 

N/A 5/16 in

Coupling Size

N/A L075

Keyway Size (W x D)

N/A No Keyway

Length thru Bore

N/A 0.82 in20.83 mm

Overall Length

N/A 2.130 in54.10 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.250 in6 mm

Max. Bore (Dimensions ID1/ID2)

N/A 0.875 in22.00 mm

Hub Length

N/A 1.32 in33.53 mm

Dimension G

N/A 0.5 in12.7 mm

Outside Diameter

N/A 1.75 in44.45 mm

Dimension SL

N/A .31 in7.87 mm

Dimension T

N/A 1/4-20

Cubic inches

N/A 4.04250 in³

Performance Data

Nominal Torque

N/A 90.00 in·lb

Max. Speed

N/A 11000.00 rpm

Rated HP at 100 rpm

N/A .14 hp

Rated HP at 1,200 rpm

N/A 1.68 hp

Rated HP at 1,800 rpm

N/A 2.57 hp

Rated HP at 3,600 rpm

N/A 5.04 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.)



  • Fail-safe – will still perform if elastomer fails
  • No metal to metal contact
  • Resistant to oil, dirt, sand, moisture and grease
  • More than 850,000 combinations of bore sizes
  • Most types available from stock in 24 hours
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