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Plastic balls are typically made from engineering plastics such as PE, PP, POM, PVC, nylon and PTFE, each offering different mechanical strength, chemical resistance and temperature performance. With smooth surfaces and good wear resistance, they provide low-friction, quiet operation in many motion and sealing applications.
Lightweight structure for reduced inertia and easier handling compared with steel balls.
Excellent corrosion and chemical resistance, suitable for chemical, pharmaceutical and food-processing environments.
Good electrical insulation, making them suitable for electronic and electrical equipment where metal balls are not acceptable.
Self-lubricating properties (depending on material), improving wear life and reducing maintenance needs.
Bearings and low-load motion components in office furniture, medical devices and light-duty machinery.
Flow control elements in valves, pumps and dosing equipment for pharmaceutical, food-processing and chemical industries.
Functional parts or fillers in chemical towers, environmental protection equipment, packaging, toys and other industrial products.
| Chemical composition | ||||||||||||
| Material | C | Si | Mn | P | S | Ni | Cr | Mo | ||||
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0-10.5 | 18.0- 20.0 | - | ||||
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0-13.0 | 18.0- 20.0 | - | ||||
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.0-11.0 | 16.0-18.0 | 2.0-3.0 | ||||
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.0-11.0 | 16.0-18.0 | 2.0-3.0 | ||||
| 420 | 0.26- 0.35 | ≤1.00 | ≤1.25 | ≤0.04 | ≤0.03 | ≤0.60 | 12.0-14.0 | - | ||||
| 420C | 0.36- 0.43 | ≤0.80 | ≤0.80 | ≤0.04 | ≤0.03 | ≤0.60 | 12.0-13.5 | - | ||||
| 440 | 0.90- 1.00 | ≤0.80 | ≤0.80 | ≤0.04 | ≤0.03 | ≤0.60 | 16.0-18.0 | 0.4-0.7 | ||||
| 440C | 0.95- 1.10 | ≤0.80 | ≤0.80 | ≤0.04 | ≤0.03 | ≤0.60 | 16.0-18.0 | 0.4-0.7 | ||||
| Grade:G10 to G1000 | ||||||||||||
| Grade | Ball diameter variation | Deviation from spherical from | Surface roughness | Lot diameter variation | Nominal ball deviation tolerance | |||||||
| Vdws | △Sph | Ra | Vdwl | Tdn | ||||||||
| not over | ||||||||||||
| μm | ||||||||||||
| 10 | 0.25 | 0.25 | 0.025 | 0.5 | * | |||||||
| 16 | 0.4 | 0.4 | 0.032 | 0.8 | * | |||||||
| 20 | 0.5 | 0.5 | 0.05 | 1 | * | |||||||
| 28 | 0.7 | 0.7 | 0.05 | 1.5 | * | |||||||
| 40 | 1.0 | 1.0 | 0.08 | 2 | * | |||||||
| 60 | 1.5 | 1.5 | 0.10 | 3 | * | |||||||
| 100 | 2.5 | 2.5 | 0.125 | 5 | ±12.5 | |||||||
| 200 | 5 | 5 | 0.5 | 10 | ±25 | |||||||
| 500 | 13 | 13 | * | 25 | ±50 | |||||||
| 1000 | 25 | 25 | * | 50 | ±125 | |||||||

Our manufacturing and quality systems are certified to IATF 16949:2016 and other international standards, widely recognized by global automotive and precision industries. This allows Eurasian to apply strict automotive-level process control to aluminum balls, industrial plastic balls, and other precision components, ensuring stable performance batch after batch.
Eurasian has extensive experience producing high-precision chrome steel, stainless steel, carbon steel, and custom plastic balls, supported by CQI-9-based heat treatment and advanced inspection equipment. The same metallurgical and process expertise ensures consistent hardness, microstructure, and dimensional accuracy across all materials, including large hard plastic balls.

From bearing steel balls (GCr15 / AISI 52100) to stainless steel, aluminum, carbon steel, and industrial plastic balls, Eurasian can support multiple projects and platforms with a consolidated supply base. This simplifies supplier management, aligns quality standards, and reduces overall procurement and logistics costs.
Eurasian supplies precision balls for automotive seat systems, wheel bearings, industrial equipment, and other export applications. Our familiarity with international documentation, packaging, and inspection requirements ensures that sourcing plastic balls for sale or other precision balls is smooth and predictable.
With established production lines and daily capacity measured in tons, Eurasian can handle both trial orders and large-volume programs with reliable delivery times. Flexible MOQs, wholesale plastic balls options, customized packaging, and responsive communication help you introduce products into new projects while controlling risk and lead time.
As a leading plastic ball company, Eurasian offers a wide selection of high-quality plastic balls, from small precision components to large hard plastic balls, meeting diverse industrial applications. Our plastic ball supply ensures reliability, consistency, and long-term support for all projects.

Plastic balls are used in applications such as bearings, valves, medical devices, flow meters, cosmetic packaging, and other components requiring lightweight, corrosion resistance, and low noise operation. Industrial plastic balls are also widely applied in automated machinery, food processing equipment, and chemical handling systems.
Eurasian can supply plastic balls in a variety of engineering plastics, including HDPE, POM, nylon, and other specialized polymers. We also offer related stainless steel materials such as 304, 316, 420, and 440C when higher strength or hardness is required. HDPE plastic balls are particularly popular for corrosion-resistant and chemical applications.
The company offers precision grades from G10 to G1000, covering ultra-precision plastic sphere ball applications to general-purpose balls for less demanding uses.
These grades define ball diameter variation, deviation from spherical form, surface roughness, and lot diameter variation. Lower grade numbers (such as G10, G16, G20) indicate higher precision and superior surface finish.
Yes, custom plastic balls can be manufactured to specific diameters and tolerances, based on customer drawings or technical requirements. Common sizes include 1 inch plastic balls, 2 inch plastic balls, 3 inch plastic balls, 4 inch plastic balls, 4 inch hollow plastic balls, 6 inch plastic ball, 8 inch plastic ball, 12 inch plastic ball, 20mm plastic balls, and other big plastic ball formats.
Depending on the grade selected, surface roughness can be controlled from very fine (for high-precision grades) to standard finishes suitable for general industrial use.
Many plastic materials offer excellent resistance to moisture, chemicals, and UV exposure. For example, HDPE plastic balls perform well in corrosive liquids and outdoor applications, making them ideal alternatives to metal balls in harsh environments.
Plastic balls are ideal for light load, anti-corrosion, and low-noise applications. However, for high load, elevated temperature, or heavy impact conditions, steel or ceramic balls are usually recommended.
Yes, Eurasian also supplies drilled balls, glass balls, hollow plastic balls, and hollow stainless steel balls, which can be ordered together for integrated solutions.
OEM and custom projects are welcome. Our engineering team can help select materials, sizes, and grades to meet your design and performance requirements, including custom diameters or specialized industrial plastic balls for machinery.
Send an inquiry with material, size, grade, quantity, and application details to jerry@cnballs.cn or use the online message form on the product page to receive a tailored quotation.
Include your company name, contact person, phone number, email, required material, ball diameter, grade (G10–G1000), expected quantity, and any special surface or packaging requirements. This ensures Eurasian can respond efficiently and provide accurate pricing.
