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双列调心球轴承
调心球轴承特别适用于因安装不当或轴弯曲引起偏斜的工作场合，当调心球轴承承载能力（特别是轴向载荷）不足时，可选用具有相同调心性能的球面滚子轴承。我们公司备有各种系列和结构的此类轴承，可供选择，这类轴承采用冲压保持架或聚酰胺保持架，轴承代号带后缀 G 表示带聚酰胺保持架。

注意：
　　在一般使用条件下，12 系列和 22 系列轴承允许倾斜角为 2.5°，13 系列和 23 系列轴承允许倾斜角为 3°，当轴承在倾斜的条件下使用时必须保证轴承和周围零件有足够间隙；当转速升高时，倾斜的轴承噪声有增大的趋势。由于噪声的限制，轴承实际倾斜角可能比倾斜角小很多；对带圆锥内孔的轴承，安装后很难准确测量轴承游隙，因此带圆锥内孔的轴承安装需要一定经验和技术；带聚酰胺保持架轴承工作温度应低于 120℃。

Self-aligning ball bearing to be suitable specially in installs improperly or the axis causes the oblique work situation ,when self-aligning ball bearing load capacity(specially the axial load) insufficiency,in this condition can select the ball bearing which has the coherence self-aligning performance.Our company has each kind of series and structure bearing for your choice,this kind of bearing uses the ramming retainer or polyamide retainer,the bearing code number suffix G stａnd for polyamide retainer.

Under the general exploitation conditions,12 series and 22 series bearing permission angle of bank is 2.5 degrees,13 series and 23 series bearing permission angle of bank is 3 degrees,when the bearing is inclining completely,under this condition uses must guarantee the bearing and periphery the components has the enough gap,when the rotational speed elevates,the inclined bearing noise has the enlargement tendency,as a result of noise limit,bearing actual angle of bank more smaller than the biggest angle of bank,to circular cone in hole bearing,after the installment,is very difficult measurement bearing windage correctly,therefore in the circular cone in hole bearing installment needs certainly experience and technology ,polyamide retainer bearing work temperature to be lower than 120 degrees.