Compatibility and overview:
This L‑jaw flexible coupling set is designed to interchange with a range of L‑jaw style couplers, including Lovejoy, Martin, Browning, TB Woods and many similar units. It provides a direct replacement when you need to join two shafts while allowing a degree of movement.

What’s included and intended use:
The package contains two steel L‑jaw coupling halves and one Buna‑N (NBR) rubber spider. It is intended for use on engine and pump shafts — typically an engine shaft at 3/4 in and a pump shaft at 1/2 in — and finds broad application in agricultural and industrial machinery such as wood splitters, hydraulic pumps, gearboxes, compressors, blowers/fans, mixers, conveyors and mowing equipment.

Technical specifications:
- Outside diameter: 1-3/4 in.
- Assembled length of the set: 2-1/8 in.
- One coupling half: 1/2 in bore with a 1/8 in keyway and a set screw.
- Matching coupling half: 3/4 in bore with a 3/16 in keyway and a set screw.
These dimensions allow straightforward installation on shafts that match the listed bores and keyways.

Performance and benefits:
This style of flexible coupling accommodates modest angular and parallel misalignment between shafts while transmitting torque. The rubber spider cushions impacts, dampens vibration and reduces transmitted shock and noise, helping protect bearings and other drivetrain components.

Materials and durability:
The coupling halves are manufactured from quality steel for toughness and resistance to contaminants such as oil, dirt, sand, moisture and grease. The included spider is molded from Buna‑N (NBR) rubber, chosen for its resilience and shock‑absorbing characteristics.

Support and warranty:
If you are not satisfied, a full refund is available within 30 days of purchase. Additionally, a 12‑month warranty covers manufacturing defects counted from the date of purchase to provide added confidence in the product.

VerdictThis coupling set is a practical replacement for equipment using L‑jaw style couplers. The steel halves and Buna‑N spider offer good durability and cushioning for applications such as log splitters, pumps, blowers, and conveyors. It fits standard 1/2 in and 3/4 in bores with keyed set screws and is adaptable to popular brand couplers. Expect some minor fitting in a few cases, but overall it’s a ro

josh 5/5

Solid buy

Solid coupler, very affordable.

Philip 4/5

Good replacement

Replaced an older Lovejoy‑style coupling. It has two set screws; I lightly sanded the 3/4 in bore. Fits well on my wood splitter.

Robert Makosky 5/5

Met expectations

Often costly elsewhere; this part performed well and met expectations.

Ray 5/5

Perfect fit

My splitter motor's coupler couldn't be removed; this replacement fit perfectly. Strongly recommend.

Carissa A 5/5

Performs

Works fine

all good 5/5

No issues

No issues, functions as intended.

L.Wilson 4/5

Overall satisfactory

Solid overall. Bores are accurate and snug; couplings mated well to Lovejoy parts. Spider is a bit softer than I'd prefer, but acceptable.

JASZD 5/5

Good quality, returned

Good build quality but incompatible with my setup; returned it.

Abby 5/5

Works well

Does the job well.

Tom Elmendorf 5/5

Great for splitter

Perfect for my log splitter.

Mark H. 5/5

High quality

Fitted perfectly and performed even better than the original.

Steve tech 5/5

Built my own setup

Used it on a custom build to couple a DC motor to a meat mixer; worked perfectly.

1/2 in to 3/4 in L‑Jaw Flexible 3‑Piece Coupling Set with Buna‑N Spider

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