Fisheye Joint Female Piston Rod End Ball Head Universal Pneumatic Cylinder U Fitting Mounting Knuckle Bearing Internal Thread 1Pcs (Hole 12mm) This fisheye joint is a female piston rod end with a ball head designed for universal use in pneumatic cylinder linkages. It provides a flexible, compact joint that accommodates angular movement and helps protect crank and rod connections from binding or misalignment. The combination of a ball head and knuckle bearing offers smooth operation and long service life in dynamic applications. Key benefits Allows smooth angular articulation between the piston rod and the attached load, reducing side load and misalignment stress. Easy installation with an internal thread and a 12 mm hole, suitable for mounting on compatible piston rods and fittings. Lowfriction performance thanks to the knuckle bearing, supporting repeated cycling with minimal wear. Compact, universal design that fits a variety of pneumatic cylinder configurations and mounting needs. Durable connection point that helps extend the life of automation fixtures by absorbing misalignment and reducing stress on other linkage components. Key attributes Functionality: Fisheye joint, female piston rod end ball head for universal articulation in pneumatic cylinder assemblies. Compatibility: Mounts via internal thread with an additional U fitting mounting option and knuckle bearing for smooth operation. Size: Hole diameter 12 mm. Material: Not specified in the listing. Performance: Designed for flexible, lowfriction motion in repetitive pneumatic cylinder applications; bearing aids longevity and reliability. Package: 1 piece per . Applications and use cases Robotic grippers and pickandplace fixtures: Enables a secure rodend connection that tolerates misalignment while maintaining precise motion control. Pneumatic cylinder linkages in automation fixtures: Provides a flexible mounting point to absorb angular changes during operation, reducing binding and wear. Conveying and handling systems: Useful where compact joints must accommodate slight angular displacement without compromising alignment and throughput. Notes Hole size specified as 12 mm; internal thread size is not listed here. Please verify compatibility with your mating components and mounting requirements before . Material details are not provided in the listing; if material specification is important for your application, refer to the product listing or contact the supplier for exact composition.