選擇INA軸承類型時，主要應(yīng)考慮以下五個方面的因素：
When choosing INA bearing type, the following five factors should be considered:
1)載荷的方向、大小和性質(zhì)：向心軸承主要承受徑向載荷，推力軸承主要受軸向載荷。INA軸承同時承受徑向和軸向載荷時，可選用角接觸球軸承和圓錐滾子軸承。軸向載荷較小時，也可以選用深溝球軸承。通常滾子INA軸承的承載能力高于球INA軸承，且承受沖擊載荷的能力較強(qiáng)。
1) Load direction, size and nature: radial load is the main bearing, thrust bearing is mainly subjected to axial load. When INA bearings bear radial and axial loads simultaneously, angular contact ball bearings and tapered roller bearings can be used. Deep groove ball bearings can also be used when the axial load is small. Usually the roller INA bearing has higher bearing capacity than the ball INA bearing and bears strong impact load.
2）轉(zhuǎn)速：INA軸承的工作轉(zhuǎn)速通常應(yīng)低于極限轉(zhuǎn)速n，深溝球軸承、角接觸球軸承和圓柱滾子軸承的極限轉(zhuǎn)速較高，適用于高速運(yùn)轉(zhuǎn)場合，而推力軸承的極限轉(zhuǎn)速較低。
2) Speed: The working speed of INA bearings should usually be lower than the limit speed n. The limit speed of deep groove ball bearings, angular contact ball bearings and cylindrical roller bearings is higher, which is suitable for high-speed operation occasions, while the limit speed of thrust bearings is lower.
3)調(diào)心性能：當(dāng)兩個INA軸承座孔的同軸度不能保證或軸的撓度較大時，應(yīng)考慮選用調(diào)心球軸承或調(diào)心滾子軸承。
3) Centering performance: When the coaxiality of two INA bearing seat holes can not be guaranteed or the shaft deflection is large, it should be considered to choose the center-aligning ball bearing or roller bearing.
4)剛度要求：通常滾子INA軸承的剛度大于球INA軸承，而角接觸球軸承、圓錐滾子軸承采用預(yù)緊方法可以進(jìn)一步提高支承的剛度。
4) Rigidity requirements: usually the stiffness of roller INA bearings is greater than that of ball INA bearings, and angular contact ball bearings and tapered roller bearings can be further improved by pre-tightening method.
5)支承限位要求：固定支承限制兩個方向的軸向位移，可以選用能承受雙向軸向載荷的INA軸承，單向限位可選用能承受單向軸向載荷的INA軸承，游動支承不限位，可選用內(nèi)、外圈可以分離的圓柱滾子軸承。
5) Support limit requirements: Fixed support to limit the axial displacement in two directions, can be selected to withstand two-way axial load INA bearings, one-way limit can be selected to withstand one-way axial load INA bearings, swimming support is not limited, can be used inside and outside ring can be separated cylindrical roller bearings.