3126B Engine for Caterpillar Built Machines Caterpillar


Engine Oil Pump

Usage:

120H 124



图 1g02976198

泵齿轮的剖面图

典型示例




图 2g02976196

位于泵组件内的旁通阀的剖面图。

表 1
189-8777 发动机机油泵总成 技术规格    
项目     数量     零件     技术规格说明    
A     -     -     齿轮前表面与壳体之间的距离为
43.00 ± 0.25 mm (1.693 ± 0.010 in)。    
B     -     -     齿轮的长度为
33.00 ± 0.03 mm (1.299 ± 0.001 in)。
齿轮的孔深度为
33.13 ± 0.02 mm (1.304 ± 0.001 in)。    
C     -     -     齿轮轴的直径为
15.600 ± 0.005 mm (0.6142 ± 0.0002 in)。
泵体中用于安装齿轮轴的孔径为
15.641 ± 0.008 mm (0.6158 ± 0.0003 in)    
1     1     105-1805 弹簧     在试验力下的长度为
54.5 mm (2.15 in)。
试验力为
51.99 ± 1.90 N (11.69 ± 0.43 lb)。
试验后的自由长度为
64.98 mm (2.558 in)。    
2     1     安全阀柱塞     柱塞的直径为
17.000 ± 0.013 mm (0.6693 ± 0.0005 in)。
泵体中用于安装柱塞的孔径为
17.100 ± 0.025 mm (0.6732 ± 0.0010 in)。    

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