Description
Product Overview
The uxcell 100pcs POM plastic bearing balls are engineered to meet the demanding requirements of modern industrial mechanisms. Each ball measures precisely 3/16″ (4.5mm) in diameter and conforms to the G2 accuracy grade, delivering a tolerance that ensures consistent performance across thousands of cycles. Constructed from high‑quality polyoxymethylene (POM), also known as engineering‑grade polypropylene, these spheres exhibit exceptional dimensional stability, low moisture absorption, and a naturally low coefficient of friction. The material’s inherent hardness and wear resistance allow the balls to maintain their roundness even under high‑load conditions, while the smooth surface finish minimizes noise and vibration during operation.
Beyond the core material advantages, the design of these mini balls incorporates a solid, non‑metallic core that eliminates the risk of rust or corrosion, a common concern when using steel components in humid or chemically aggressive environments. The black coloration not only provides a neutral aesthetic that blends seamlessly with most machine housings but also offers additional UV protection, extending the service life when exposed to sunlight or intense artificial lighting. Each package contains 100 individually inspected balls, guaranteeing uniformity and reliability for batch‑level production runs.
Technical specifications include a weight of 0.48 ounces per 100‑ball set, a compact cubic dimension of 0.18″ per side, and compliance with industry standards for precision plastic spheres. The product’s Best Sellers Rank of #19 in Plastic Precision Balls on major e‑commerce platforms reflects its popularity among engineers, hobbyists, and manufacturers seeking cost‑effective yet high‑performance bearing solutions.
![[Product front view showing all components]](https://www.candyzone.store/wp-content/uploads/2026/07/249d712c482e4c6eb7b9bc7fd2249df5.jpg)
Usage
These POM bearing balls are versatile components suitable for a broad spectrum of applications. In linear motion systems such as drawer slides, table guides, and rail mechanisms, the low‑friction characteristics enable smooth gliding action, reducing the need for additional lubrication and decreasing maintenance intervals. For rotary applications, including small gear assemblies, universal ball transfers, and miniature motor shafts, the precise spherical geometry ensures even load distribution, preventing premature wear and extending the lifespan of the surrounding hardware.
Industrial environments often demand components that can withstand harsh conditions. The corrosion‑resistant nature of POM makes these balls ideal for use in outdoor conveyor systems, spray equipment, and chemical processing machinery where exposure to moisture, solvents, or temperature fluctuations is routine. Additionally, the balls can be employed in prototype development for robotics, 3D‑printed mechanisms, and educational kits, offering a reliable, low‑cost alternative to metal bearings during iterative design phases.
For hobbyists and DIY enthusiasts, the 100‑piece quantity provides ample inventory for multiple projects, from custom CNC machines to hobby‑grade drones. The consistent size and grade allow users to predict performance outcomes, facilitating precise calculations for torque, speed, and load capacity in experimental setups.
Why Choose Us
Choosing uxcell means selecting a brand committed to quality, consistency, and customer satisfaction. Each batch of bearing balls undergoes rigorous dimensional testing to verify compliance with the G2 grade, ensuring that every ball meets the exacting standards required for high‑precision applications. Our manufacturing process incorporates advanced extrusion and molding techniques that produce uniform spheres with minimal surface imperfections, reducing the likelihood of point‑load failures.
We stand behind our products with a responsive after‑sales support team ready to address any technical inquiries, replacement requests, or customization needs. Whether you require a different size, a specific color, or a bulk order exceeding the standard 100‑piece pack, our engineering staff can work with you to develop a solution that aligns with your project specifications.
Environmental responsibility is also a core value at uxcell. The POM material used in these balls is recyclable and manufactured with processes that minimize waste and energy consumption. By opting for plastic bearing balls instead of metal alternatives, you contribute to a reduction in overall material weight, which can lead to lower transportation emissions and cost savings in large‑scale deployments.
Key Features
- Precise 3/16″ (4.5mm) diameter with G2 grade accuracy for reliable performance
- Durable POM construction offers high wear resistance and long service life
- Low‑friction surface reduces noise and eliminates the need for additional lubrication
- Corrosion‑resistant and UV‑stable, suitable for indoor and outdoor environments
- Responsive customer support and flexible ordering options for custom requirements
FAQ
What is the difference between POM and metal bearing balls?
POM bearing balls are lighter, non‑magnetic, and resistant to corrosion, making them ideal for applications where metal balls might rust or add unnecessary weight. They also provide low friction without the need for lubrication, whereas metal balls often require regular oiling.
Can these balls be used in high‑temperature environments?
POM maintains its mechanical properties up to approximately 180°C (356°F). For applications exceeding this temperature, a different material such as ceramic or specialized high‑temperature polymers should be considered.
How do I ensure the balls are compatible with my existing bearing housing?
Check the inner diameter of your bearing housing to confirm it matches the 4.5mm (3/16″) ball size. The G2 grade ensures a tight tolerance, but a small clearance of 0.02mm to 0.03mm is typical for smooth operation.
Are the balls supplied with any packaging to protect them during shipping?
Each set of 100 balls is packaged in a sealed, anti‑static bag within a sturdy cardboard box to prevent contamination, moisture ingress, and mechanical damage during transit.
What warranty does uxcell provide for these bearing balls?
We offer a 12‑month limited warranty covering material defects and dimensional inconsistencies. If you encounter any issues within this period, contact our support team for a replacement or refund.
![25pcs Precision Balls - [3/16 Inch] PA Nylon for Bearings Valves Use, Solid-0](https://www.candyzone.store/wp-content/uploads/2026/07/5a8fbf58eae541fea04dd40795b207c4-300x300.jpg)
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