外置轴承型的轴承腔与泵腔用机械密封及骨架油封或填料隔开，密封性好。
The bearing bore and pump bore of external bearing type are separated by mechanical seal and skeleton oil seal.
外置轴承结构的双螺杆泵工作腔同轴承是分开的。
Working with external bearing structure of the double screw pump bearings are separated.
第二，成套轴承在装配前经过严格的精密选配。不能互换使用锭脚型腔内的其它零件。
Second, the complete bearing undergoes the strict precise match before the assembly. Cannot exchange in the use spindle foot die space other components.
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