How to choose NTN bearing
BEST Bearing Co.,Ltd(HONGKONG)Was Established At 2001. We are kown for Best Bearings - NTN Bearings. As Now Had Been With Over More Than Ten Years Experience In Exported Brand Bearings' Business.
(firmenpresse) - BEST Bearing Co.,Ltd(HONGKONG)Was Established At 2001. We are kown for Best Bearings - NTN Bearings . As Now Had Been With Over More Than Ten Years Experience In Exported Brand Bearings' Business.The Main Brand In Export Include SWEDEN SKF Bearings. Germany FAG And INA Bearings. USA TIMKEN Bearings. Japan NSK. NTN. NACHI. ASAHI. IKO. NMB Bearings And So On.Today we talk about How to choose NTN bearing.
Firstly, NTN Bearing Size
NTN bearing installation space is usually limited. In most cases, the diameter of axle (or bearing inside diameter) is designed according to the mechanical design or other restrictions. So Choice of bearing type and size is determined according to the inner diameter of the bearing. As a result, the main dimensions of the standard NTN bearing table are compiled according to the international standard diameter. Standard NTN bearing the size of the form is various, is best when mechanical device design with a standard bearing (this design to the bearing is easy to purchase, just as an aside, here model does have some bearing on the catalogue, but some non-standard NTN bearing areas in China there is no spot, futures will be a long time, sometimes to consider when bearing selection so late time cost and the cost of replacement) bearing load, the load on the bearing, the nature, size, direction is changeable. Usually, the basic load rating on dimension table is displayed. Axial load and radial load, and so on, but also are important factors to select suitable for NTN bearing. When the size of the ball and needle bearing fairly, needle roller bearing is usually have higher load capacity and bear the larger vibration and shock loads.
Secondly, bearing rotation speed
According to allow rotation speed is NTN bearing type, size, precision, cage type, load, lubrication, and cooling way. Bearing table lists the standard precision bearings allow speed under oil lubrication and grease lubrication. Usually, deep groove ball bearings, automatic self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.
Thirdly, NTN Bearing Tolerance
NTN bearing dimensional accuracy and rotation accuracy is according to ISO and JIS standard. For high-precision and high-speed machines, recommend the use of level 5 or above precision bearing, deep groove ball bearings, angular contact ball bearings and cylindrical roller bearing is suitable for high precision mechanical operation. Rigidity, when bearing rolling element and raceway contact pressure, will produce elastic deformation. Some mechanical bearing need to be minimized the elastic deformation. Roller bearing is smaller than ball bearings produced by elastic shape variables.
Fourthly, NTN Bearing high load capacity
Taking a high load capacity of imported NTN bearings, with convex degree of cylindrical roller bearing imports, for example, with a symmetrical roller imported spherical roller bearing, reinforced taper roller imported bearings and ball bearings, ball groove revised import bearings, or substitute the imported bearing of 70000 CD series deep groove (single-row radial ball bearing import, these imported bearings with high load capacity, or due to improve the stress distribution state, or because of the more rolling element may have higher fatigue life.
What is more ,About NTN Bearing ,Some other small aspects also need to be considered:
1) NTN Bearing Lubrication Grease
The choice of grease are generally according to the bearing rotating speed, heat resistance, noise and starting torque, etc
2) NTN bearing seal type
The lubrication of imported bearing can be divided into oil lubrication and grease lubrication. Oil lubrication bearing generally choose form of bearing, grease lubrication bearing generally select dust cover or rubber seal.
3)NTN Bearing coordination
If you want to choose coordination accurately, you must know the actual loading conditions of imported bearings, working temperature and other requirements, but in fact it is very difficult.
In addition, in some cases, NTN bearing to exert preloading, in order to increase rigidity. This program is typically used for deep groove ball bearings, angular contact ball bearings and tapered roller bearing inner and outer circle of bias, shaft bending, shaft or the bearing box tolerance changes, mistakes will lead to the eccentricity of the inner and outer ring. In order to prevent the eccentric Angle is too large, automatic self-aligning ball bearings, automatic self-aligning roller bearings, or self-aligning bearing seat is a better choice. Voice frequency and torque, the rolling bearing are based on high precision standard production, so the voice and the torque is small. Deep groove ball bearings and cylindrical roller bearing used for in low voice, low torque has special requirements of the occasion.
Of Course ,NTN Bearing has many types: Like:NTN Deep Groove Ball Bearing ,NTN Cylindrical Roller Bearing ,NTN Angular Contact Ball Bearing ,NTN Pillow Block Bearing ,NTN Spherical Roller Bearing and NTN Needle Roller Bearing ,However No matter what type the NTN Bearings Belongs to ,All of them need to consider the above Points (NTN Bearing Size, Bearing rotation speed, NTN Bearing Tolerance, NTN Bearing high load capacity, NTN Bearing Lubrication Grease, NTN bearing seal type, NTN Bearing coordination) When we choosing the NTN Bearing.
Hong Kong BEST Bearing Co.,Ltd
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Datum: 25.04.2014 - 05:05 Uhr
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News-ID 1297095
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