Basic Info.
Model NO.
SJZC Steel Balls for bearing
Grade
G10 G16 G20 G28 G40 G60 G100 G200 G500 G1000
Specification
ISO9001; CE
Product Description
Steel ball for bearing
General Information
This is an oil-hardened steel, which is universally used by the ball and roller bearing industry. The steel has high hardness and good resistance to deformation with excellent wear resistance. Usually vacuum degassed and uniformly through hardened in atmosphere controlled electric furnaces.
Feature
excellent surface quality, superior wear resistance, high hardness and high load bearing capacity
Applications
Precision bearings, automotive components (brakes, steering, line shaft), bicycle, agitators, appliances, drawer rails, quick couplings, machine tool, lock mechanisms, conveyor belts, skates, pens, pumps, castors, measurement instruments, valves, recirculating balls. Foodstaff and chemical applications.
Material Composition
C 0.95-1.10%
Cr 1.30-1.60%
Mn 0.25% Max
Si 0.15-0.30%
P 0.03% Max
S 0.025% Max
Mechanical Properties
Tensile Strength- 325,000psi
Yield Strength- 295,000psi
Density- 7.83g/cc
Manufacturing Process of Steel Ball
1. Raw Material
2. Drawing--Drawn the wire rod to the required size, in closer tolerances so that it can be used in next step cold heading.
3. Heading--Ball blanks are cold or hot headed from rolls of wire or bar stock depending on their size and the material.It cuts to length and the width a small percentage larger than the width of the finished ball.The wire or rod is then fed through a header.This cold forged process produces "slugs" at an incredibly high speed.These rough shaped balls have a ring around the middle.The next process is to remove this ring.
4. Flashing--To remove the "ring" around the ball, the slugs are then flashed.The flashing gives the ball a rough finish.
5. 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.
6. Grinding--After the ball is heat treated, the ball is then ground to the approximate diameter of the finished ball.
7. Sorting--Sorting the right size ones, and the qualified steel balls are filtered.
8. Lapping--The lapping will be processed after the ball is ground to approximate size. This lapping process polishes the ball to the exact required size and it makes the ball shiny.
9. Inspection--The balls need to be inspected by mechanically and visually after lapping process.The balls are measured through a fine tuned tapered roller. The workers will also do the visually checking before packing.
Inspection Machines
1 . Metallurgical microscope
2 . Metallographic sample mounting press
3 . Metallographic polishing machine
4 . Reed-type comparator
5 . Hardness tester
6 . Compression testing machine
7 . Vibration gauge
8 . Roundness measuring equipment
Applications
Precision bearings, automotive components (brakes, steering, line shaft), bicycle, agitators, appliances, drawer rails, quick couplings, machine tool, lock mechanisms, conveyor belts, skates, pens, pumps, castors, measurement instruments, valves, recirculating balls. Foodstaff and chemical applications.
Steel Ball Metric and Inch Size
Material | 52100 chrome steel |
1010 1015 1045 1085 1086 carbon steel |
304 316/L 420C 440/C stainless steel |
AL.5052 aluminum |
H62/65 brass |
T2 copper |
Metric Size (mm) | 0.4, 0.5, 0.68, 0.7, 0.8, 1, 1.2, 1.3, 1.45, 1.5, 1.75, 2, 2.5, 3, 3.5, 1mm-200mm |
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Inch Size (inch) | 1/32, 3/64, 1/16, 5/64, 3/32, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 29/64, 15/32, 31/64, 1/2, 17/32, 9/16, 19/32, 5/8, 21/32, 11/16, 23/32, 3/4, 25/32, 13/16, 27/32, 7/8, 29/32, 15/16, 31/32, 1, 1-1/16, 1-1/32, 1-1/8, 1-3/16, 1-1/4, 1-5/6, 1-3/8, 1-7/16, 1-1/2, 1-9/16, 1-5/8, 1-3/4, 1-7/8, 2, 2-1/4, 2-1/2, 2-3/4, 3, 3-1/4, 3-1/2, 3-3/4, 4, 5, 6, 7 |
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Conversion | 1inch=25.4mm, 1mm=1000um |
Grade | G10 G16 G20 G28 G40 G60 G100 G200 G500 G1000 |
Precision | G10:0.25μm G16:0.4μm G20:.5μm G28:0.7μm G40:1μm G60:1.5μm G100:2.5μm G200:5μm G500:13μm G1000:25μm |
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OEM | Yes. (The sizes can be customized) |
Packaging:
1. Plastic bag+box+carton+wooden pallet
2. Plastic bag+carton+wooden pallet
3. Export cartons+steel drums+wooden pallets
Shipping:
1. EXPRESS
2. AIR
3. SEA
FAQ
1. What kind of steel balls can supply by HUARI STEEL BALL CO., LTD. ?
Material | Carbon, Chrome, Stainless, Aluminium, Copper, Brass and so on. |
Size range | 0.8mm-150mm |
Grade | G10-1000 |
Packing | Standard or as customer required |
Delivery | Stock within a short time or 35 days |
2. Some other question?
Q1. -- If 'I' want small quantity and fast delivery. Which way of shipping is advised ?
A1. -- By express.
Q2. -- How many quantity will be packed in one carton or one pallet ?
A2. -- 20 to 25kg per carton,1 ton per wooden pallet.
Q3. -- What's the lead time ?
A3. -- If in stocks,2-5days;or ,it will take 20-35days,depend on the quantity.
Q4. --Which kind of payment will be accepted ?
A4. -- T/T, West Union, L/C, ...
Why choose us
1.Free samples
2.100% guarantee for our quality.
3.Our products have BV and ISO certificate.
4.Professional manufacturer with 15years experience.
5.Our steel balls and bearings are sold all over the world.
Address:
China ( Skype: Live: Sjzcbearing ), Shanghai, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Textile
Management System Certification:
ISO 9001
Company Introduction:
Shanghai Shengjian Bearing Co., Ltd is the new sub-branch of Shandong Shengjian Bearing Co., Ltd, which is specilized in bearing design, R&D, manufacturing and sales for 15 years.
We are committed to manufacturing and providing bearings of high quality, high stability and long life span with advanced technology and strict qualtiy control system like heat treatment, grinding, assembly, testing to meet customers requirements.
Our production line: Deep groove ball bearings, Spherical ball bearing, Thin section bearing, Thrust ball bearing, Thrust roller bearing, Cylindrical roller bearing, Tapered roller bearing, Needle roller bearing, Rod end bearing, Angular contact ball bearing, etc.
Based on long-term elaborately research and advanced management concept, We carefully do every point, every drop for the customers to creat "win-win"
Our advantages:
1. Competitive price, high quality
2. OEM service
3. Timely delivery
4. Large stocks
5. ISO 9001: 2008
We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective.