195-15-75530 1951575530 Original Construction Machinery Parts Seal O-Ring D155AX-5 D375A-5

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5. FAQ

Q: What does this gasket kit do?
A: This is a full static sealing set, usually used in engine pump housings, control valve bodies, or other fluid-carrying assemblies. It combines a base gasket and red O-rings to create a comprehensive leak-proof barrier, stopping oil or hydraulic fluid from escaping and maintaining system pressure.

Q: What materials make up each piece?
A: The flat, light-colored base gasket is a fiber-reinforced composite gasket, often made of heat-resistant compressed paper/fiber. The red O-rings are typically made of FKM (Viton) or fluorosilicone rubber.

Q: Why these materials for this job?
A: The composite gasket is designed to conform to minor surface imperfections, resist heat and oil, and provide a reliable seal over a large mating area. The FKM/fluorosilicone O-rings offer outstanding heat resistance, chemical compatibility with oils, and long-term elasticity, making them ideal for sealing individual ports and passages.

Q: How long can these parts last if installed correctly?

A: With proper installation, clean lubricant, and correct clearance settings, the oil seal can last 5,000–10,000 operating hours, while the metal shims will typically last the life of the assembly unless they are damaged during service.

Q: Can I reuse the old shims?

A: While the shims themselves don’t wear out, it’s best to use new ones if possible, especially if they are bent, scratched, or have been deformed during disassembly. Reusing old shims can lead to incorrect clearances if they are damaged, so always inspect them carefully before reuse. The oil seal, however, should always be replaced with a new one during service.

6. Exhibition and Wearhous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More