Lovejoy Style Jaw Coupling Hub: L100 Size, 7/8" Bore

In stock

This RuggedMade L100 jaw coupling hub provides strength and support when connecting two rotating drive shafts.

  • Fits onto a 7/8" shaft
  • 370 inch per pound rated torque
  • Made from CNC sintered steel
  • No lubrication required

The image shown does not reflect the actual product dimensions.

NOTE: A complete coupling assembly requires two hubs and a rubber spider insert. All components are sold separately. To order additional components to create a complete L100 coupling assembly for your needs, see the related products below.

Coupling Sets You Can Rely On

Designed for connecting two rotating shafts, couplings are suitable for use in a wide range of applications, including power transmission to industrial equipment such as pumps, log splitters, gearboxes, compressors, blowers, mixers, and conveyors. These are the same couplings we use to direct-mount the engine shaft to the pump shaft on our RuggedSplit log splitters. 

When ordering a complete set, use the chart below to match the shaft diameter to the coupling bore size.

To complete the coupling set, an oil-resistant synthetic rubber spider is inserted between the two coupling halves to provide an equalized cushioned drive. If provided, a keyway slot on the coupling helps to align the coupling to the shaft. Keys are not included. When mounting, do not pound on the coupling.


Jaw Size Bore Size
(W x D)
Rated Torque
Rated HP @ Varying RPM Overall Length
(Two Hubs)
Outer Diameter
100 300 1200 1800 3600
L100 5/8" 3/16" x 3/32" 370 0.60 1.80 7.20 10.80 21.60 3.48" 2.54"
3/4" 3/16" x 3/32"
7/8" 3/16" x 3/32"
1" 1/4" x 1/8"
1-1/8" 1/4" x 1/8"
1-1/4" 1/4" x 1/8"
1-1/2" 3/8" x 3/16"

Technical Details

  • SKU: 94-020-0312
  • Bore Diameter: 7/8"
  • Length Through Bore: 1.38"
  • Material: CNC sintered steel
  • Outer Diameter: 2.54"
  • Overall Length: 3.48"
  • L Style: L100 Size
  • Keyway Size (W x D): 3/16" x 3/32"
  • Manufacturer: RuggedMade
  • Part Number: L100785
  • Product Weight: 1.73 lbs

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Lovejoy Style Jaw Coupling Hub: L100 Size, 7/8" Bore

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