从滚针组合轴承结构分析着手，推导出滚针组合轴承的基本额定动负荷估算公式。
From analysis of combined needle roller bearing, the estimating formula of basic dynamic load rating for above bearing is derived.
组合式滚针轴承是由一个向心滚针轴承和一个推力轴承相结合，因此能够承受径向和轴向负荷。
Combined needle roller bearings consist of a radial needle roller bearing combined with a thrust bearing and are consequently able to take up both radial and axial loads.
不带法兰的滚针轴承是可分离的，即外圈、滚针和保持架组件以及内圈都可分别安装。
The needle roller bearings without flanges are separable, i. E. The outer ring, the needle roller and cage assembly and the inner ring can all be mounted separately.
为便于与滚针轴承的滚针和保持架组件或外圈组件结合，内圈在滚道两侧有引入槽。
To facilitate their combination with needle roller and cage assemblies or the outer ring assembly of needle roller bearings, they have a lead-in at each side of the raceway.
我厂生产各种各类滚针轴承，其：冲压外圈型，实体套圈型滚针轴承为本厂特色产品。
We manufacture various kinds of needle roller bearings. Drop up needle bearing and ring type entity needle bearings are our special products.
我厂生产各种各类滚针轴承，其：冲压外圈型，实体套圈型滚针轴承为本厂特色产品。
We manufacture various kinds of needle roller bearings. Drop up needle bearing and ring type entity needle bearings are our special products.
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