The GRACO 18B050 is a spider shaft coupling hub designed to connect rotating shafts in GRACO equipment. It is typically constructed from durable materials such as steel or cast iron for the hub and a flexible elastomer (like polyurethane) for the spider insert, though specific material is not always specified. Its primary function is to transmit torque while accommodating minor misalignment and dampening vibration between connected shafts.

Key Features:

• Jaw Coupling Hub
• L-095 x 1-1/8 STD 1/4 x 1/8 KW Hub
• Designed for use with GRACO equipment requiring L-095 size couplings with a 1.125 inch bore
• Straight jaw design for secure shaft connection
• Accommodates minor shaft misalignment
• Reduces vibration and shock between connected shafts
• Durable construction for reliable performance

Applications:
Used in GRACO equipment where secure, flexible shaft connections are required, such as in pumps, mixers, and other rotating machinery.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and longevity of equipment, reducing the risk of premature failure or downtime.
• Ensure shafts are clean and free of debris before installation
• Align shafts as closely as possible to minimize stress on the coupling
• Tighten set screws or bolts to the manufacturer’s recommended torque
• Inspect the coupling and spider insert regularly for wear or damage