High Precision Solid Metal Spheres For Bearing 44.43mm 1.7492126" G40

44.43mm(1.7492126"), customized size, high accuracy steel balls for bearing

Introduction

GCr15 steel is a representative steel of high-carbon chromium bearing steel with good overall performance. After quenching and tempering, the hardness is high and uniform, and the wear resistance and contact fatigue resistance are high, good thermal workability. After spheroidizing annealing, although it has good workability, it is sensitive to the formation of white spots.

It can be used to manufacture various bearing rings with wall thickness ≤12mm and outer diameter ≤250mm; it is also suitable for rolling elements of various sizes, such as steel balls, tapered rollers, cylindrical rollers, spherical rollers, needle rollers, etc.; It can also be used to manufacture molds, precision measuring tools and other mechanical parts that require high wear resistance, high elastic limit and high contact fatigue strength.

Mainly used to manufacture steel balls, rollers and bushings on drive shafts of internal combustion engines, electric locomotives, machine tools, tractors, rolling equipment, drilling machines, railway vehicles and mining machinery.

Mechanical properties

1. The influence of quenching temperature. The normal quenching heating temperature of GCr15 steel is 830-860℃, and oil cooling is mostly used. The best quenching heating temperature is 840℃, and the hardness after quenching reaches 63-65HRC. Under actual production conditions, the quenching temperature used can be slightly different depending on the effective cross-sectional size of the mold and the quenching medium. Such as larger size or nitrate grade quenching mold, it is advisable to choose a higher quenching temperature (840-860℃) in order to improve the hardenability, obtain sufficient hardened layer depth and higher hardness; smaller size or use Oil-cooled molds generally choose a lower quenching temperature (830-850°C). Molds of the same specifications should be heated in a box furnace at a slightly higher temperature than that in a salt bath furnace.

2. The influence of tempering temperature. As the tempering temperature increases, the hardness after tempering decreases. After the tempering temperature exceeds 200℃, it will enter the first type of temper brittleness zone. Therefore, the tempering temperature of GCr15 steel is generally 160-180℃.

Why Choose Us:

1. Special types of balls supplied.

2. Small MOQ with competitive price.

3. Fast delivery based on quality guaranteed.

4. Small quantity of free samples could be provided

5. Normal have in stock within one week can be shipped.

Product Details

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