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5 key points when NTN bearings are purchased
Source: China Bearing Network Time: 2013-10-11
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1. NTN bearing radial load The bearing that receives the radial load is the radial bearing. The nominal touch angle of this type of bearing is a0<=450. The roller bearing of the same scale can receive more radial load than the ball bearing.
N-type and NU cylindrical roller bearings can only accept radial loads; other types of radial bearings can accept both radial loads and axial loads.
2. The axial load of the NTN bearing is the thrust bearing. The bearing with the axial load is generally a thrust bearing; its nominal touch æ—®æ—¯a0>450. The thrust bearing and the thrust angle touch ball bearing can accept one or two directions together according to the different layout. Axial force. When receiving the thrust force is particularly high, it is preferred to use thrust cylindrical roller bearings and thrust spherical roller bearings.
Thrust spherical roller bearings and one-way thrust angle contact ball bearings can accept axial and radial loads together; other thrust bearings can only accept axial loads.
3, the length of the NTN bearing itself to support a shaft and bearings generally choose the combination of fixed bearing and swimming bearing combination. The floating bearing compensates for the length error and thermal expansion of the shaft.
NU-type and N-type cylindrical roller bearings are aspirational swimming bearings; these bearings can compensate for the length itself. The inner and outer rings of the bearing can be used tightly.
4, the length of the sliding cooperation can not compensate for the different bearings (such as deep groove ball bearings and spherical roller bearings) can also be used as a swimming bearing. One of the two rings of this type of bearing is cooperative; there is no axial fixed surface. A ring of NTN imported bearings can move on its bearing surface.
5, can be separated from the bearing (accuracy)
This is a kind of bearing that can be separated by a ferrule; when both ferrules are tightly coupled, their strength is outstanding.
Can be separated from bearings including four-point ball bearings, double-half inner ring double row angular touch ball bearings, cylindrical roller bearings, tapered roller bearings, thrust ball bearings, thrust cylindrical roller bearings and thrust spherical roller bearings.
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