Powder Metallurgy Part High Precision PM Component (A3678)

Core Advantages

Application in Fans & Refrigerators

1. Application in Electric Fans  

The  powder metallurgy spherical bushings serve as a core positioning and transmission component in electric fans (including ceiling fans, stand fans, and tower fans), mainly applied to the fan head swing mechanism and motor shaft bearing seat:

Swing mechanism: It is installed at the joint of the fan head’s pitch and yaw drive rod, with its high-precision concentricity (≤0.06mm after sintering) and oil-impregnated self-lubrication (SHC 626 oil) ensuring smooth, low-noise swing of the fan head, avoiding jamming or abnormal noise during long-term operation.

Motor shaft support: As a small bearing sleeve for the fan motor’s auxiliary shaft, its φ13.7±0.10mm spherical matching surface fits tightly with the motor shaft, reducing rotational friction and improving the energy efficiency of the fan motor while extending the service life of the transmission structure.

2. Application in Refrigerators

In refrigerators (household and commercial refrigerators), the ZOB-97 component is used in the refrigerator door hinge adjustment mechanism and compressor vibration reduction linkage:

Door hinge adjustment: Embedded in the refrigerator door’s upper/lower hinge pivot, its 0.4×45° chamfered inner/outer corners and strict dimensional tolerance (total height 10.40±0.05mm) ensure the refrigerator door can be opened and closed smoothly with proper alignment, preventing door sag or seal failure caused by hinge wear.

Compressor vibration reduction: Installed at the connecting rod end of the compressor’s vibration-damping bracket, the powder metallurgy material’s shock absorption and oil-lubricated wear resistance reduce the transmission of compressor vibration to the refrigerator body, lowering the operating noise of the refrigerator and enhancing user experience.

Please select more specifications and tolerance, or send the drawings for more information.