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Rolling bearing is one type of commonly used in our daily life, the rolling bearing is mainly composed of an outer ring, an inner ring, a rolling body and a holding frame which is formed by the combination of. For the rolling bearing rings and rolling bodies, very important material selection. The two parts can be determined using the properties of rolling bearings, we can select the line with material rolling bearing rings and rolling bodies according to demand.
1、高碳鉻軸承鋼
1, high carbon chromium bearing steel
絕大多數軸承套圈和滾動體都彩用專用鋼材制造。用高碳鉻軸承鋼(GCr15和GCr15SiMn與ZGCr15和ZGCr15SiMn)制造套圈和滾動體，其零件硬度如下：
The vast majority of bearing rings and rolling bodies are color made of special steel. High carbon chromium bearing steel (GCr15 and GCr15SiMn with ZGCr15 and ZGCr15SiMn) manufacturing rings and rolling elements, the hardness of parts as follows:
用GCr15和ZGCr15材料制造的套圈和滾子為HRc61~65，鋼球為HRc62~66；
Made of GCr15 and ZGCr15 materials for bearing rings and roller for steel ball HRc61~65, HRc62~66;
用GCr15SiMn和ZGCr15SiMn材料制造的套圈和滾子為HRc60~64，鋼球為HRc60~66。
Made of GCr15SiMn and ZGCr15SiMn materials for bearing rings and roller is HRc60~64, ball HRc60~66.
用高碳鋼鉻軸承鋼制造的軸承一般適用于工作溫度為-40~130度范圍，油與脂潤滑正常。可滿足一般機械的要求。
Bearing chromium bearing steel manufacturing high carbon steel is generally applicable to the working temperature is -40~130 degrees, normal oil and Zhi Runhua. Can meet the general requirements of mechanical.
高碳鉻軸承鋼軸承零件經高溫回過火后，其適應工作溫度可高達250度。
High carbon chromium bearing steel bearing parts by high temperature after the back, adapt to the working temperature can be as high as 250 degrees.
2、滲碳軸承鋼
2, carburizing bearing steel
用滲碳軸承鋼等制造的套圈和滾動體，其硬度為：套圈和滾動體為HRc60~64，一般適和于工作溫度為-40~140攝氏度范圍，油與脂潤滑正常，能在較大沖擊振動條件下使用，如機車車輛及軋鋼機用軸承等，但該鋼種的熱處理工藝比較復雜。
Using carburizing bearing steel and other manufacturing rings and rolling, its hardness is: rings and rolling elements for HRc60~64, generally suitable for the work temperature of -40~140 degrees Celsius range, oil and grease lubrication is normal, can be used in larger impact vibration conditions, such as bearings for locomotives and rolling machine, but the heat treatment process the steel complex.
3、耐熱軸承鋼
3, the heat-resistant bearing steel
用耐熱軸承鋼制造的套圈的滾動體，其硬度：套圈和滾子為HRc60~64，鋼球為HRc61~65，在潤滑正常的情況下，適用于工作溫度為120~250攝氏度，如航空發動機、燃氣渦輪機等主軸工作條件。
The rolling body made by heat resisting bearing steel rings: rings and roller hardness is HRc60~64, the steel ball is HRc61~65, in the lubrication is normal, is suitable for the work temperature of 120~250 degrees Celsius, such as aircraft engines, gas turbines and other spindle working conditions.
4、耐腐蝕軸承鋼
4, the corrosion resistance of bearing steel
用耐腐蝕軸承鋼制造套圈和滾動體，其硬度為：套圈和滾動體不應低于HRc58，適用于水、硝酸、化學試劑等腐蝕性介質，溫度為-253~350攝氏度。
Corrosion resistant bearing steel rings and rolling bodies, its hardness is: rings and rolling bodies should not be less than HRc58, suitable for water, nitric acid, chemical reagents and other corrosive medium, temperature of -253~350 degrees celsius