Why are Solid POM Balls so popular in sliding accessories?

1. Physical and chemical properties of POM materials

POM, or polyoxymethylene, is a thermoplastic crystalline polymer with many properties. It is white or light yellow, with a smooth and shiny surface and a hard and dense texture. The density of POM is usually between 1.41-1.43g/cm³, which helps to accurately calculate the amount of material and the weight of the product. More importantly, POM has high strength, high modulus, high wear resistance, high toughness, good dimensional stability and corrosion resistance.

2. Unique advantages of Solid POM Balls

Excellent wear resistance: POM material has an extremely low coefficient of friction. When it contacts and slides relative to other material surfaces, the friction generated is extremely small, and the degree of wear is naturally very low. This feature is particularly important in sliding accessories, which can greatly extend the service life of accessories, reduce maintenance frequency, and reduce the cost of use.
High strength and rigidity: POM material has high strength and high rigidity, and can withstand large external forces without being easily deformed. This enables Solid POM Balls to maintain precise dimensions and stable structures in sliding parts, ensuring efficient and reliable operation of mechanical equipment.
Good dimensional stability: The molecular structure of POM material is regular and the crystallinity is high, which gives it dimensional stability. When environmental factors such as temperature and humidity change, the expansion and contraction of POM balls are extremely small, and the original size specifications can be accurately maintained. This is undoubtedly a huge advantage for applications with extremely high precision requirements for sliding parts.
Chemical resistance: POM material has a certain corrosion resistance to acids, alkalis, salts, etc., which enables Solid POM Balls to maintain stable performance in sliding parts with complex chemical environments.
3. Specific application of Solid POM Balls in sliding parts

Printer transmission parts: In the transmission system of the printer, Solid POM Balls are often used as parts such as gears and bearings. With their wear resistance and self-lubricating properties, they ensure the smooth operation and long life of the printer transmission system.
Automotive sliding parts: In the automotive industry, Solid POM Balls are widely used in sliding parts, such as the guide rails of window lifters and the internal structural parts of door handles. These parts require not only high strength and wear resistance, but also stable performance under harsh conditions of use. POM material meets these requirements, making it the preferred material in automotive manufacturing.
Industrial automation equipment: In industrial automation equipment, Solid POM Balls are often used as components such as slide rails and bearings. With their low friction coefficient and super wear resistance, they ensure the stable and efficient operation of the equipment, greatly reducing the frequency and cost of equipment maintenance.
Medical devices: Solid POM Balls are also widely used in medical devices. For example, in the blood collection pen housing of the blood glucose meter, the foot pedal and armrest connector of the wheelchair, the easy-to-clean, non-toxic characteristics, high strength and wear resistance of POM materials provide patients with a better rehabilitation experience.