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

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

Chemical Composition

Established in 2006, Xi'an Machinery & Engineering Import & Export Co.,Ltd.（XMEC) is the successor to Shaanxi Marine and Engineering Import & Export Co., Ltd., which is specialized in importing & exporting mechanical and electrical products, complete equipment, various kinds of vessels and ships, marine equipment and port machinery, electronic and electric products, instruments and meters, minerals and metals, light industrial products, etc. XMEC also engages in different trading activities such as import and export of techniques and overseas project contracting.

With over 20 years of importing and exporting experience, we have good reputation from our customers at home and abroad, our source passed ISO9001:2008 and our products got SGS,RoHS Certificates etc.

Based on almost two decades of continuous efforts and development, our company has become one of the leading domestic facility which can supply high precision steel balls with complete specifications. We mainly produce Chrome steel ball (AISI52100, 100Cr6, GCr15, GCr15SiMn, SUJ2), Stainless steel ball (201, 304, 316, 420, 420C, 440C, 430), Carbon steel ball (1015, 1010, 1045, 1085), Tungsten carbide ball etc., Especially from 7.9375 mm - 82.55 mm high precision size chrome steel balls which are our principal products and used mostly for Wind Turbine Bearing, Slewing Ring Bearing and also the Bearing. The accuracy range of the steel balls we provide is from G10- G1000.

Based on customer’s requirement, the steel balls could be produced according to China Standard GB/T 308.1, International Standard ISO 3290, America Standard ANSI/ABMA Std. 10A, Germany Standard DIN 5401, Japan Standard JIS B 1501 etc.

With features of low-noisy, high-accuracy, best-service, our products have been widely used in various industry fields, such as aerospace industry, bearing, bicycle, auto industry, medical industry, electronic field, military industry, precision instrument and so on. They are all sold to overseas market with most competitive price and high quality.
 

We are looking forward to cooperation with you at the basis of mutual benefit in the near future.

Chrome Steel Ball details as follows