✴️【Great Compatibility】Compatible with Lovejoy, Martin, Browning, TB Woods, and many other L-jaw couplers. ✴️【Widespread Use】 This product is a Flexible Coupling Set designed to fit on engine shafts and pumps. (engine shaft 3/4" and the pump, 1/2".) Applied extensively in industrial and agricultural equipment including wood splitters, hydraulic pumps, gearboxes, compressors, blowers and fans, mixing equipment, conveyor systems and mowing equipment. ✴️【Technical Specification】1) Outside Diameter: 1-3/4; Assembled Length of Set: 2-1/8. 2) 1/2" bore with 1/8" keyway and set screw on one coupling half; 3/4" bore with 3/16" keyway and set screw on the matching coupling half. ✴️【Typical Flexible Coupling】Is preferred for its ability to accommodate some degree of misalignment when transmitting power to one shaft and another. Good ability to absorb shocks and vibrations and thus reduce excessive noise and wear. ✴️【Premium Quality】Made of premium steel, the product has excellent resistance to oil, dirt, sand, moisture, and grease. Is also sturdy and tough, ensuring a long service life. High quality rubber spider is particularly good for cushioning and shock absorption. ✴️【Friendly Service】 A full return is available within 30 days if you are not satisfied; we also offer a 12-month warranty from the date of purchase to make sure that you have good experience. 1/2" to 3/4" L075 Flexible 3-Piece L-Jaw Coupling Set & Buna-N NBR Rubber Spider for Lovejoy, Martin, Browning, TB Woods