Rubber Coated Balls

Rubber coated balls combine a carbon steel or stainless steel core with a silicone or polyurethane (PU) outer layer. Ball size, coating material, thickness, hardness and color can be customized for valve components, cooling products, mechanical cushioning and other special applications.

Steel Core Structure
Silicone or PU Coating
Custom Thickness and Color
Application-Based Design
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Detailed Description

Rubber coated balls combine the strength of a metal core with the cushioning, sealing or contact properties of an elastomer outer layer.



Rubber Coated Balls

Rubber coated balls are commonly produced with carbon steel or stainless steel cores and coated with silicone or polyurethane (PU). The outer layer can help reduce impact, protect contacting surfaces and provide the required elasticity for different operating conditions.

Common applications include valve components, cooling products, mechanical cushioning and other customized uses. Ball diameter, core material, coating thickness, hardness, color and other requirements can be produced according to samples, drawings or confirmed application details. As each project is different, please contact our sales team for specification confirmation.

Impact CushioningCustom CoatingMultiple Applications
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Technical Specifications
ItemSpecification
Product TypeRubber coated metal ball
Core MaterialCarbon steel or stainless steel
Coating MaterialSilicone or polyurethane (PU)
Common Ball Sizes9, 12.7, 15, 18, 20, 22 and 24 mm; other sizes can be evaluated
Coating ThicknessCustomized according to ball size and application requirements
Coating HardnessConfirmed according to coating material and application
ColorCustomized where available
SurfaceSmooth coated surface or as confirmed
Production BasisCustomer sample, drawing or confirmed specification
InspectionBall diameter, coating thickness, appearance and agreed requirements
PackingCartons, bags or customized protective packaging
Delivery TimeConfirmed according to size, coating material, quantity and processing requirements
Customization Options
Custom ItemAvailable Options
Core MaterialCarbon steel or stainless steel
Coating MaterialSilicone or polyurethane (PU)
DimensionsBall diameter and coating thickness
Hardness and ColorConfirmed according to application requirements
Special RequirementsEvaluated according to sample, drawing or application details

Other customized requirements can be evaluated according to samples, drawings and application details. Please contact our sales team for confirmation.

FAQ
What quality control standards do you follow as a rubber coated balls manufacturer?
As a professional rubber coated balls manufacturer, we test coating adhesion, impact resistance and surface uniformity. All finished balls pass strict inspection to guarantee stable performance in vibration and grinding applications.
What are the main advantages of rubber coated steel balls compared with solid rubber balls?
Rubber coated steel balls have a metal core for high hardness, while rubber coated steel balls offer noise reduction and anti-collision protection. They maintain good roundness and longer service life for screening and tumbling equipment.
Can you customize the size and rubber hardness of rubber coated balls for our project?
Yes, we support custom diameters, rubber thickness and Shore hardness. Just send your application and parameter requirements, we will provide samples and a quotation within one working day for your evaluation.
What operating temperature range can your rubber coated balls withstand?
Our rubber coated balls normally work between -20℃ and 80℃. Special rubber formulations are available for extreme high or low temperature environments to avoid coating peeling or aging quickly.
Can rubber coated balls be used for different applications?
Yes. Rubber coated balls can be customized for mechanical contact, cushioning, sealing and other special applications. The final specification should be confirmed according to the actual operating conditions.
Can food-contact-grade silicone be supplied?
Food-contact-grade silicone can be evaluated for suitable cooling or product-contact applications. Compliance and material requirements should be confirmed before production.
Can you manufacture according to samples or drawings?
Yes. Rubber coated balls are customized products and can be produced according to customer samples, drawings or confirmed requirements.
Can you provide samples?
Yes. Samples can be arranged after the core material, size, coating material, thickness and surface requirements are confirmed. Sample cost and lead time depend on the specification.
Why Choose Huari Steel Ball?
Factory Direct Value
Factory Direct Value
As a manufacturer since 1986 with an annual capacity of 3,600 tons, we eliminate middlemen, offering you competitive factory-direct pricing and stable lead times.
1
Engineering Expertise
Engineering Expertise
Our team doesn't just sell parts; we provide solutions. We offer CAD/STEP drawing support and technical consultation to help you select the exact clearance (C0/C3) and grease type for your application.
2
Customization Flexibility
Customization Flexibility
Unlike rigid distributors, we support custom modifications, including special internal clearances, non-standard dimensions, and private labeling (OEM).
3
Certifications & Quality

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