Question 1

What types of steel balls does Rama & Sons manufacture?

Accepted Answer

Rama & Sons manufactures a comprehensive range of steel balls including:
    • Ferrous Steel Balls: EN31, AISI-1010, 100CR6, SS-300 Series (304, 316), EN-9, SS-400 Series (410, 420, 440C), AISI-52100
    • Non-Ferrous Metal Balls: Brass, Copper, Aluminium, Titanium, Tungsten, Inconel, Hastelloy, and more
    • Non-Metallic Balls: Ceramic, Glass, Plastic, Ruby, Silicon Nitride balls
    All our steel balls are manufactured in India with over 20 years of expertise.

Question 2

Where is Rama & Sons located and do you ship across India?

Accepted Answer

Rama & Sons is headquartered in Agra, Uttar Pradesh, India. We ship our high-quality steel balls, polish media, and precision gauges across India and internationally. Our manufacturing facility is equipped with modern technology to ensure consistent quality and timely delivery to customers nationwide.

Question 3

What is the difference between EN31 and AISI 52100 steel balls?

Accepted Answer

EN31 and AISI 52100 are essentially equivalent grades of high-carbon chromium bearing steel. Both offer:
    • High hardness (60-67 HRC after heat treatment)
    • Excellent wear resistance and dimensional stability
    • Superior fatigue strength for bearing applications
    • Chemical composition: ~1% Carbon, ~1.5% Chromium
    EN31 is the British standard while AISI 52100 is the American designation for the same material specification.

Question 4

What sizes of steel balls are available?

Accepted Answer

Rama & Sons manufactures steel balls in a wide range of sizes from precision micro balls to large industrial balls. Standard sizes include:
    • Precision balls: 0.5mm to 25mm diameter
    • Industrial balls: 25mm to 150mm diameter
    • Custom sizes: Available on request
    We maintain tight tolerances and can produce balls to Grade 10, Grade 25, Grade 100, and other precision grades as per your requirements.

Question 5

What is the difference between SS 304 and SS 316 stainless steel balls?

Accepted Answer

The main differences between SS 304 and SS 316 stainless steel balls are:
    
    **SS 304 Balls:**
    • 18% Chromium, 8% Nickel
    • Good corrosion resistance in atmospheric conditions
    • Cost-effective for general applications
    • Suitable for food processing and medical devices
    
    **SS 316 Balls:**
    • 16-18% Chromium, 10-14% Nickel, 2-3% Molybdenum
    • Superior corrosion resistance, especially against chlorides
    • Better pitting and crevice corrosion resistance
    • Ideal for marine environments and harsh chemical conditions

Question 6

What are the main applications for steel balls in industry?

Accepted Answer

Steel balls from Rama & Sons are used in numerous industrial applications:
    • **Bearings**: Ball bearings for automotive, machinery, and industrial equipment
    • **Valves**: Check valves, ball valves for flow control systems
    • **Grinding Media**: Ball mills for cement, mining, and pharmaceutical industries
    • **Automotive**: Steering systems, CV joints, seat belt mechanisms
    • **Aerospace**: Precision components requiring high reliability
    • **Medical Devices**: Biocompatible balls for surgical instruments
    • **Food Processing**: Stainless steel balls for hygienic applications

Question 7

What polish media does Rama & Sons offer for surface finishing?

Accepted Answer

Our comprehensive polish media range includes:
    • **Stainless Steel Media**: SS straight polish pins, SS cross pins, SS cut wire shots, SS round cut wire
    • **Zinc Media**: Zinc round shots, zinc cut wire shots for gentle finishing
    • **Magnetic/Non-Magnetic**: Available in both variants for different applications
    • **Multi-faceted Pins**: For reaching complex geometries and uniform finishes
    All media are designed for tumbling, deburring, polishing, and surface preparation applications.

Question 8

What quality standards does Rama & Sons follow?

Accepted Answer

Rama & Sons adheres to international quality standards including:
    • ISO 3290 for steel balls used in rolling bearings
    • ASTM F2215 for steel balls used in bearing applications
    • DIN 5401 for steel balls precision grades
    • AISI standards for material specifications
    • In-house quality control with dimensional inspection, hardness testing, and surface finish verification
    We maintain strict quality control throughout the manufacturing process to ensure consistency and reliability.

Question 9

How do you ensure the hardness and surface finish of steel balls?

Accepted Answer

Our quality assurance process includes:
    • **Hardness Testing**: Rockwell C scale testing (typically 60-67 HRC for bearing grade)
    • **Surface Finish**: Ra values maintained as per grade requirements
    • **Dimensional Accuracy**: Precision measurement using coordinate measuring machines
    • **Roundness/Sphericity**: Controlled to meet Grade 10, 25, or 100 specifications
    • **Material Certification**: Chemical composition analysis and material traceability
    Each batch undergoes rigorous testing before dispatch.

Question 10

How can I get a quote for steel balls or polish media?

Accepted Answer

To get a competitive quote from Rama & Sons:
    1. **Contact Us**: Call +91-63976-82296 or email ramasons2001@gmail.com
    2. **Specify Requirements**: Material grade, size, quantity, tolerance, and application
    3. **WhatsApp**: Send your requirements via WhatsApp for quick response
    4. **Online Inquiry**: Use our inquiry form on the website
    We provide detailed quotes within 24 hours with technical specifications and delivery timelines.

Question 11

What is the minimum order quantity and delivery time?

Accepted Answer

**Minimum Order Quantity:**
    • Standard products: As low as 1kg for common grades
    • Custom specifications: Depends on material and size requirements
    
    **Delivery Time:**
    • Standard steel balls: 7-15 days from order confirmation
    • Custom products: 15-30 days depending on specifications
    • Express delivery available for urgent requirements
    
    We maintain stock of commonly used grades to ensure faster delivery across India.

Question 12

Can you help me select the right steel ball grade for my application?

Accepted Answer

Absolutely! Our technical team at Rama & Sons provides expert consultation to help you select the optimal steel ball grade based on:
    • Load requirements and operating conditions
    • Environmental factors (temperature, corrosion, chemicals)
    • Precision and tolerance requirements
    • Cost considerations and volume requirements
    Contact our technical experts for application-specific recommendations and engineering support.

Question 13

Do you provide custom manufacturing for special requirements?

Accepted Answer

Yes, Rama & Sons specializes in custom manufacturing:
    • **Custom Sizes**: Non-standard diameters and specifications
    • **Special Materials**: Exotic alloys and specialized compositions
    • **Precision Gauges**: Custom-made gauges for specific measurement needs
    • **Surface Treatments**: Special coatings and heat treatments
    • **Packaging**: Custom packaging for automated assembly lines
    Our experienced team works closely with customers to develop solutions for unique industrial requirements.

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