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Home > Applications > Applications Depending on the Environment > Lightweight

Lightweight

We exclusively use pure plastics and none that come from recycling.

Lightweight

The specific gravity of plastics ranges between 0.94 and approximately 2.4, meaning they weigh only about 1/12 to 1/3 as much as metals when compared by weight.

Material Phenol (SD) PTFE (PT) PTFE (PTN) UHMWPE (PE) PEEK (PK) PP (PP)
Weight 1.4 g 2.1 g 2.14~2.2 g 0.94 g 1.3 g 0.9 g

Therefore, given the same volume, plastic components are inevitably lighter than metal components. This leads to a reduction in the load on various components, including the shaft, making the design more compact.

In aircraft, such as drones, where heavy materials cannot be used for individual components, plastic is the ideal material.

Comparison: A metal bearing labeled 6004 made of high-carbon chromium steel weighs approximately 69g. In contrast, the plastic bearing with the following compositions weighs:

UKB6004PE-PP
Inner and Outer Ring:UHMWPE
Cage:UHMWPE
Balls:PP
Weight:approx. 10.07g

UKB6004PK-G
Inner and Outer Ring:PEEK
Cage:PEEK
Balls:Soda Lime Glass
Weight:approx. 15.3g

UKB6004PT-A
Inner and Outer Ring:PTFE with filler
Cage:PTFE with filler
Balls:Alumina Ceramic
Weight:approx. 24.6g

 

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