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E52100 Chrome Steel Bearing Balls 28.585mm 1.125394 Inch G28 HRc 62-67 GCr15

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E52100 Chrome Steel Bearing Balls 28.585mm 1.125394 Inch G28 HRc 62-67 GCr15

Name: E52100 Chrome Steel Bearing Balls 28585mm 1125394 Inch G28 HRc 6267 GCr15
Brand: OEM,ODM
Price: 1 USD

Brand Name : OEM,ODM

Model Number : 28.585mm(1.125394 Inch)

Certification : SGS,ISO9001,IAF,CNAS

Place of Origin : china

Price : FOB tianjin port, qingdao port

Payment Terms : L/C, T/T

Delivery Time : 30-45days

Packaging Details : Plastic bag+ cardon box+ wooden pallet

Material : chrome steel, GCr15,SUJ2

Grade : G28

Hardness : HRc62-67

Surface : Lapping, Polished, Flashing

Application : ball bearings,Bicycles,Automobile, Machinery

Feature : High Precision, High Hardness, Good Wear Resistance,

Standard : GB/T308, ISO, ANSI/ABMA, DIN 5401

Service : test report

Free samples : supply the samples for test

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28.565mm(1.125394"),G28, High carbon steel balls for High Precision Ball Bearings

Description

Chromium (CR) has a tendency to increase hardness, toughness and wear resistance of steel. Chrome steel is a chrome alloy carbon steel, not a chrome plated steel.

It has good superior performance, and has excellent wear resistance, deformation resistance, high load capacity and high contact fatigue performance after quenching and tempering.

Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating to assure uniform hardness and proper microstructure for each steel ball.

The high-carbon chromium bearing steel is a high-carbon alloy steel with 1.30~1.65% chromium. It is characterized by a more uniform and stable structure after heat treatment, high hardness, high uniformity, good wear resistance, high contact fatigue strength, and good dimensional stability and corrosion resistance after annealing, its cutting performance is good and the price is relatively cheap. This steel can meet bearing requirements under normal working conditions.

Chrome steel and other metal balls are manufactured using the following processes

Forging cold heading. Rough ball shapes are forged from bar stock material.
Deflashing. Rough machining or soft grinding removes the forge flashing.
Heat treatment. Balls are heat treated based on technical specifications in a controlled process.
Finishing. Stainless steel balls skip this step. Other steel balls may be hardened using heat treatments, quenching, or other tempering methods.
Hard Grinding. The steel balls are ground to remove nicks and imperfections.
Lapping. A controlled mechanical sanding/polishing process brings the balls into the intended design, grade dimensions, and spherical accuracy within 1/1,000,000 of an inch.
Inspection & Packaging. Cleaning and oiling as a final step before the steel balls are inspected and packaged.

Grade and Precision

Grade	Hardness	Material	Ball Diameter
G28	HRc 62-67	GCr15, SUJ2, E52100	28.585mm (1.125394") of non standard

Chemical Composition

Material	(Cr)	(C)	(Mn)	(Si)	(P)	(S)	(Mo)	(Ni)	(Cu)
GCr15	1.40% to 1.65%	0.95% to 1.05%	0.25% to 0.45%	0.15% to 0.35%	≤0.025%	≤0.020%	≤0.10%	≤0.25%	≤0.25%
GCr15SiMn	1.40% to 1.65%	0.95% to 1.05%	0.95% to 1.25%	0.45% to 0.75%	≤0.025%	≤0.020%	≤0.10%	≤0.25%	≤0.25%

Product Tags:

28.585mm Chrome Steel Bearing Balls

HRc 62 Chrome Steel Bearing Balls

Wholesale E52100 Chrome Steel Bearing Balls 28.585mm 1.125394 Inch G28 HRc 62-67 GCr15 from china suppliers

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