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31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67

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China Xi'an machinery & engineering import & export co.,ltd. certification
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31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67

31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67
31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67

Large Image :  31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67

Product Details:
Place of Origin: china
Brand Name: OEM,ODM
Certification: SGS,ISO9001,IAF,CNAS
Model Number: 31.78mm(1.251181")
Payment & Shipping Terms:
Minimum Order Quantity: 6180pcs
Price: FOB tianjin port, qingdao port
Packaging Details: Plastic bag+ cardon box+ wooden pallet
Delivery Time: 20-30days
Payment Terms: L/C, T/T

31.80mm 1.251968" High Precision Bearing Balls 52100 HRc61 - HRc67

Description
Material: Chrome Steel, GCr15, SUJ2 Grade: G28
Hardness: HRc61 To HRc67 Surface: Lapping, Bright, High Polished,case Hardened Surface
Application: Ball Bearing, Mechanical Equipment, Grinding Media Standard: DIN, ASTM, AISI, JIS, AFN
Feature: Good Roundness,good Roughness, Anti-wear, Corrosion Resistance Free Sample: Supply For You
High Light:

31.80mm High Precision Bearing Balls

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HRc61 High Precision Bearing Balls

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31.80mm Precision Chrome Steel Ball

31.80mm(1.251968"), 31.76mm To 31.87mm, precision chrome steel Ball For Bearing, 52100

 

Introduction

 

Steel balls are an important basic component, especially precision industrial steel balls, which play a huge role in the development of the national economy. Under certain special conditions, it is usually necessary to use special materials of steel balls to meet the functions in different environments. In fact, some special material steel balls have been widely used in various fields of the national economy, including 9Cr18, 3Cr13 stainless steel, copper, aluminum, titanium alloy steel, agate, glass, ceramic balls, etc. Their promotion and application have not only promoted the development of the steel ball production industry, but also promoted the technological development and technological progress of related industries.

 

E52100 chrome steel balls are used in the ball and roller bearing industry and various automotive applications. These chrome steel balls have excellent surface quality. Through quenching, they have excellent wear resistance, high hardness and high load carrying capacity.

 

We mainly produce chrome steel with sizes ranging from 7.9375mm to 82.55mm. The main material is high chromium GCR15 or GCR15SiMn. Our balls are mainly used in the wind energy industry.

 

Our products enjoy high evaluation and satisfaction among customers. Most importantly, we can customize products to meet the various needs of customers. According to customer requirements, steel balls can be produced in accordance with Chinese standard GB/T 308, international standard ISO 3290, American standard ANSI/ABMA, German standard DIN 5401, Japanese standard JIS B 1501, etc.

 

Production Process

 

1. Wire Drawing

Each batch of raw material steel is inspected and classified according to different material (carbon, stainless, chrome), size and quantity, which marked with the Material Cert. The qualified steel comes to the quarantine area; the unqualified will be rejected with a record.

Then the steel is made into different sizes according to the needed requirements.

2. Cold Heading

The raw material certified is worked on high-speed casting machines to cast into different size pieces.

3. Ball Flashing

This step of the production process involves rolling the pieces between discs with concentric grooves to eliminate signs of casting and to increase the precision of the ball.

4. Heat Treatment

Heat treatment, where necessary, gives the balls the maximum possible hardness and the best technical characteristics that can be achieved with the materials used.

5. Hard Grinding

Successively several careful grinding processes using ceramic grinding wheels give greater dimensional precision and prepare the balls the next, final lapping process.

6. Lapping

This procedure gives the ball a perfectly shiny, compact and defect-free surface, with very low surface roughness, much lower than that required under GB/308-2002

7. Cleaning

Remove the oil stains on the surface of the steel ball , make the steel ball cleaner and brighter.

8. Selecting and Final Inspection

The sorting machines together with the manual detecting and modern testing processes, largely ensures the high quality of our products.

9. Packaging

Pack products according to customer needs.

 

Applicable Industries


Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Printing Shops, Construction works , Energy & Mining. aerospace industry, automotive industry, precision instruments, motorcycles, bicycles, bearings, medical equipment and food machinery and other fields.

 

Why choose us


1. Professional manufacturer of steel balls more than 15 years.
2. The leading domestic facility which can supply high precision steel balls with complete specifications.
3. An integrated set of industry and trade company,professional at before & after sales service.
4. Certified by ISO 9001:2000,SGS quality system certification.
5. Strict quality control system,100% inspection.
6. Adequate inventory,on time delivery.
7. All inquiries and messages will be replied within 24 hours.
8. Free samples can be offered.

 

Specification

 

Basic Information
Material GCr15 , GCr15SiMn , SUJ2, 52100, 100Cr6
Metric Size 7.9375mm - 82.55mm
Inch Size 0.3125” – 3.25”
Grade G10, G16, G20, G28, G40, G60, G100

 

Chemical Composition
  C% Si% Mn% Cr% Cu% C%
52100 0.98~1.10 0.15~0.35 0.25~0.45 1.30~1.60
 
0.98~1.10
GCr15 0.95~1.05 0.15~0.35 0.25~0.45 1.40~1.65 0.25 0.95~1.05
GCr15SiMn 0.95~1.05 0.45~0.75 0.95~1.25 1.40~1.65 0.25 0.95~1.05
100Cr6 0.93~1.05 0.15~0.35 0.25~0.45 1.35~1.60
 
0.93~1.05
SUJ2 0.95 or 1.10 0.15 or 0.35 0.50 max 1.30~1.60   0.95 or 1.10

 

Mechanical Properties
  GCr15 GCr15SiMn
Density(g/cm3) 7.8 7.8
Hardenability Good Excellent
Wear Resistance Excellent Excellent

Contact Details
Xi'an machinery & engineering import & export co.,ltd.

Contact Person: admin

Tel: +8618392876187

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