However, the heavier unbalanced radial force existed in the traditional two-gear's gear pump is a chief factor to affect the pump's service life.
但是传统的二齿轮式齿轮泵存在较大的不平衡径向力，成为制约齿轮泵寿命的主要因素。
The SB series concentric pump housings are heavier and stronger to outlast conventional pumps. The housings are thicker for extra strength and extended service life.
与普通泵相比，该砂泵泵体重而结实，经久耐用，因其强度特殊，故壁厚也比一般泵要厚些，寿命也相对较长。
The SB series concentric pump housings are heavier and stronger to outlast conventional pumps. The housings are thicker for extra strength and extended service life.
与普通泵相比，该砂泵泵体重而结实，经久耐用，因其强度特殊，故壁厚也比一般泵要厚些，寿命也相对较长。
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