Steel Balls
Carbon, chrome, and stainless steel balls available in standard and custom specifications for bearings, valves, automotive systems, and industrial assemblies.
Explore Steel BallsPrecision Ball Manufacturer
Precision Balls Engineered to Your Specification
STR Industries manufactures and supplies steel, ceramic, glass, plastic, grinding media, burnishing media, and ball transfer components for industrial, automotive, medical, defense, food processing, and precision equipment applications.
ISO 9001
TS 16949
ABMA Grade Capability
89+ Material Grades
50+ Years
Material and Component Capabilities
Precision Ball Products for Demanding Applications
Select the product family that matches your application, material requirement, tolerance class, or load-handling need.
Ceramic Balls
Zirconia, silicon nitride, and alumina options for applications requiring heat resistance, corrosion resistance, low weight, and wear performance.
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Glass Balls
Borosilicate and soda lime glass balls for optical, valve, fluid-handling, laboratory, and specialty industrial applications.
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Plastic Balls
Engineering polymer balls for non-magnetic, lightweight, chemical-resistant, and non-corrosive applications.
Explore Plastic Balls
Ball Transfer Units
Load-bearing ball transfer units for smooth omnidirectional movement in material handling, conveyor, fixture, and assembly systems.
Explore Ball Transfer
Grinding and Burnishing Media
Steel, ceramic, alumina, and zirconia media for grinding, polishing, deburring, milling, finishing, and material processing applications.
Explore Grinding MediaWhy STR Industries
A Precision Ball Supplier Built for Engineers and Procurement Teams
STR Industries supports customers that need verified material grades, documented quality systems, consistent tolerances, and responsive quote support.
50+ Years of Experience
Decades of precision ball manufacturing and supply for industrial, automotive, medical, defense, food processing, and OEM applications.
ISO 9001 and TS 16949
Quality management systems that support traceability, inspection, documentation, and automotive supply requirements.
89+ Material Grades
Material options include carbon steel, chrome steel, stainless steel, ceramic, glass, plastic, and specialty grades.
Specification-Driven Quotes
Submit your drawing, datasheet, tolerance class, material grade, quantity, or application details for review.
Industries Served
Precision Ball Components Specified Across Critical Applications
STR Industries supplies precision and semi-precision ball products for OEMs, engineers, and procurement teams across multiple industrial markets.
Certifications and Standards
Manufactured and Inspected for Documented Quality
STR Industries supplies precision ball products under documented quality systems, with material certifications, dimensional inspection reporting, and certificates of conformance available on request.
Products may be specified to recognized ball and bearing standards, including ABMA, ANSI/ABMA, ISO 3290, ASTM F2215, and DIN 5401, depending on the material, application, and tolerance requirement.
Common Specification References
- ISO 9001 quality management
- TS 16949 / IATF 16949 automotive quality requirements
- ABMA and ANSI/ABMA ball tolerance grades
- ISO 3290 steel and ceramic ball standards
- DIN 5401 dimensional and tolerance references
- ASTM F2215 carbon steel ball references
Request a Quote
Get a Quote Based on Your Specification
Upload a drawing, datasheet, or written specification and STR Industries will review your material, tolerance, quantity, and application requirements.
1
Submit Your Specification
Send your material grade, diameter, tolerance class, quantity, drawing, or application details through the RFQ form.
2
Receive a Detailed Quote
An STR specialist reviews the requirement and responds with relevant material, tolerance, lead time, and pricing information.
3
Approve Production or Supply
Once approved, your order moves forward with the required documentation, inspection, and traceability support.
Applications
Specified Into Bearings, Valves, Pumps, Medical Devices, and Processing Equipment
STR Industries components are used in bearings, check valves, ball valves, medical devices, automotive systems, defense applications, food processing equipment, paint and pigment manufacturing, industrial pumps, and precision instrument assemblies.
Whether the requirement is corrosion resistance, hardness, density, non-magnetic performance, smooth transfer, or tight dimensional tolerance, STR Industries can help match the ball material to the application.
Request application support
Bearings
Check Valves
Ball Valves
Medical Devices
ABS Systems
Defense Applications
Food Processing
Industrial Pumps
Grinding and Milling
Precision Instruments
Technical Insights
Resources for Ball Selection, Standards, and Procurement
Explore technical articles designed to help engineers and procurement teams compare materials, standards, and supplier considerations.
ISO vs DIN Standards: What They Mean for Ball Bearings
Compare ISO 3290 and DIN 5401 tolerance references and understand how standards affect ball specification.
Read ArticleNavigating Supply Chain Challenges for Steel Ball Suppliers in 2025
Review sourcing considerations, lead time planning, and procurement strategy for steel ball components.
Read ArticleComparing Ceramic vs Steel Grinding Media
Compare density, hardness, wear life, contamination risk, and selection criteria for grinding media.
Read ArticleFAQ
Precision Ball Manufacturing Questions
What materials does STR Industries manufacture balls in?
STR Industries supplies precision balls in carbon steel, chrome steel, stainless steel, ceramic, glass, plastic, and specialty materials. Material selection depends on application requirements such as hardness, corrosion resistance, weight, magnetism, temperature, and wear performance.
What tolerance grades does STR Industries supply?
STR Industries supplies precision and semi-precision balls to application-specific tolerance requirements, including ABMA, ANSI/ABMA, ISO 3290, ASTM F2215, and DIN 5401 references where applicable. The final tolerance class should be confirmed during quoting.
Does STR Industries supply automotive-grade components?
Yes. STR Industries supports automotive supply requirements with TS 16949 / IATF 16949 quality management references, traceability, and documentation available based on the quoted requirement.
What is the minimum order quantity?
Minimum order quantity varies by material, size, tolerance grade, and production requirement. Submit your specification through the RFQ form for an accurate response.
How do I request a quote?
Submit your drawing, datasheet, material grade, size, tolerance requirement, quantity, or written application notes through the Request a Quote form. The RFQ form accepts file uploads up to 1 GB.
Need a Ball Manufactured to Your Specification?
Upload your drawing or describe your requirement. STR Industries will review the material, tolerance, quantity, and application details for quote support.
Request a Quote