• 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 L070 HUB 7/16 3/32X3/64KW

Hub Style

N/A 1

Coupling Type

N/A Jaw


N/A Sintered Iron


N/A Metallic

# of Jaws

N/A 2

Elastomeric Member

N/A SOX (NBR) Rubber


N/A 0.24 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 0.60 lb

Weight (Complete Coupling w/ Min. Bores)

N/A 0.40 lb

Dimensional Data

Bore Size 

N/A 7/16 in

Coupling Size

N/A L070

Keyway Size (W x D)

N/A 3/32 x 3/64 in

Length thru Bore

N/A 0.750 in19.05 mm

Overall Length

N/A 1.980 in50.29 mm

Outside Diameter

N/A 1.36 in34.54 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.250 in6 mm

Max. Bore (Dimensions ID1/ID2)

N/A 0.750 in19.00 mm

Hub Length

N/A 1.230 in31.24 mm

Dimension G

N/A 0.480 in12.19 mm

Dimension SL

N/A 0.380 in9.65 mm

Dimension T

N/A 1/4-20

Cubic inches

N/A 2.27501 in³

Performance Data

Nominal Torque

N/A 43.20 in·lb

Max. Speed

N/A 14000.00 rpm

Rated HP at 100 rpm

N/A 0.07 hp

Rated HP at 1,200 rpm

N/A 0.84 hp

Rated HP at 1,800 rpm

N/A 1.23 hp

Rated HP at 3,600 rpm

N/A 2.52 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



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