The GRACO 186776 GUIDE BALL POLY is a small, polyurethane guide ball component designed for use within GRACO diaphragm pump assemblies. Its primary function is to guide and support moving parts, ensuring smooth operation and reducing wear in the pump mechanism. Key Features: Guide ball 186776 Polyurethane Compatible with select GRACO diaphragm pump models (specific models not listed in available data) Compact size for easy integration into pump assemblies Durable polyurethane construction for longevity and resistance to wear Lightweight design (shipping weight: 0.02 lbs) Applications:Used in GRACO air-operated diaphragm pumps to guide and support internal components, ensuring reliable and efficient pump operation. Installation Notes: Using genuine GRACO parts ensures optimal performance, compatibility, and longevity of the pump assembly. Refer to the specific GRACO pump manual for detailed installation instructions Ensure all components are clean and free of debris before installation Follow proper lubrication and alignment procedures as outlined in the manual Regularly inspect guide balls for wear and replace as needed Use only recommended lubricants and replacement parts Consult a GRACO specialist for compatibility and installation support