MIDDIA Precision Zirconia Ceramic Wear Ring and Keeper Ring for Industrial Parts (Item No. ZR07)

Engineered for mechanical seals, high-speed rotary assemblies, chemical fluid pumps, and heavy-duty machinery guides, MIDDIA ZR07 Zirconia (ZrO2) Ceramic Wear Rings and Keeper Rings offer outstanding structural reliability and anti-friction performance. Manufactured from Yttria-Stabilized Tetragonal Zirconia Polycrystals (Y-TZP), these ceramic retaining rings exhibit the highest room-temperature fracture toughness and flexural strength among all technical ceramics, making them highly resistant to mechanical impact and edge chipping under dynamic loads. Featuring a thermal expansion coefficient closely matching stainless steel, ZR07 wear rings integrate seamlessly with metallic housings, preventing seal clearance changes or press-fit loosening during thermal fluctuations. Precision-lapped with smooth surface finishes and ultra-tight wall thickness tolerances, they significantly reduce mechanical wear, extend seal lifespans, and eliminate corrosion pitting caused by severe acids, alkalis, and abrasive slurries. Non-magnetic and non-conductive, MIDDIA provides full OEM/ODM custom inner/outer diameters, chamfers, and locking step geometries according to customer drawings, low MOQ wholesale orders, and rapid global factory delivery.