• The AL Type coupling consists of two standard AL Type hubs and one spider (find under L Type components, or the AL section for AL150).
  • Unless stated otherwise, hub torque and horsepower ratings assume a SOX(NBR) rubber spider is being used.
Unit of Measure



N/A AL095 HUB 3/4 3/16X3/32 KW

Hub Style

N/A 1

Coupling Type

N/A Jaw


N/A Aluminum


N/A Silver

# of Jaws

N/A 3

Elastomeric Member

N/A SOX (NBR) Rubber


N/A 0.33 lb

Weight - Solid

N/A 0.60 lb

Weight (Complete Coupling w/ Max. Bores)

N/A 0.80 lb

Dimensional Data

Bore Size 

N/A 3/4 in

Coupling Size

N/A AL095

Thread (Dimension T)

N/A 5/16-18

Keyway Size (W x D)

N/A 3/16 x 3/32 in

Length thru Bore

N/A 1 in25.4 mm

Overall Length

N/A 2.500 in63.50 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.500 in13.00 mm

Max. Bore (Dimensions ID1/ID2)

N/A 1.125 in29.00 mm

Hub Length

N/A 1.500 in38.10 mm

Dimension G

N/A 0.5 in12.7 mm

Dimension HD

N/A 2.120 in53.85 mm

Dimension SL

N/A 0.440 in11.18 mm

Cubic inches

N/A 6.74160 in³

Performance Data

Nominal Torque

N/A 194.00 in·lb

Max. Speed

N/A 9000.00 rpm

Moment of Inertia (Solid) WR2

N/A 0.336 lb·in²

Rated HP at 100 rpm

N/A 0.31 hp

Rated HP at 1,200 rpm

N/A 3.72 hp

Rated HP at 1,800 rpm

N/A 5.50 hp

Rated HP at 3,600 rpm

N/A 11.16 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.)



  • Interchangeable with all hub sizes standard for the L-Line and AL-Line products
  • Available in a variety of different finished bore and keyway combinations
  • Finished bores passivated for additional rust protection



  • Lovejoy does not recommend reboring AL hubs.
  • All hubs are supplied standard with one set screw, except the AL150 which is provided with two set screws.