Strut Mount Core and Outer Tube: Machining Precision Requirements

Core and Outer Tube

A strut mount is rubber + metal frame. The core (inner skeleton) and outer tube are the key machined parts, vulcanized into the rubber.

Roles

• Core: Centers and connects the piston rod, takes tension
• Outer tube: Fits the body mounting seat, transfers load

Precision Requirements

• Tolerance: IT7-IT8 on critical fits (±0.02-0.05mm)
• Concentricity: ≤0.05mm for smooth rotation
• Finish: Ra1.6-3.2 on mating surfaces
• Deburring: Protects rubber and seals

Why Precision Matters

• Loose fit → noise and play
• Rough surface → fast wear
• Poor concentricity → stiff steering

Huami Advantage

Huami specializes in CNC machining of mount cores/tubes with full inspection (contour/vision systems). Stable batch quality, open for cooperation.