Needle bearing model query needle bearing model co

2022-07-22
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For people who have little contact with machinery, usually they only see the rotation of large machinery, which should be a completely strange concept to bearings. However, bearings play a vital role in mechanical movement. Then, do you know what needle roller bearings are? Needle bearing is a roller bearing with cylindrical rollers. Compared with its diameter, the rollers are both thin and long. This kind of roller is called a needle roller. Now I will introduce the model comparison of needle roller bearings in bearings, hoping to help friends with this need

for people who seldom touch machinery, they usually only see the rotation of large machinery, which should be a completely strange concept to bearings. However, bearings play a vital role in mechanical movement. Then, do you know what needle roller bearings are? Needle bearing is a roller bearing with cylindrical rollers. Compared with its diameter, the rollers are both thin and long. This kind of roller is called a needle roller. Now I will introduce the model comparison of needle roller bearings in bearings, hoping to help friends with this need

introduction to needle bearing

needle bearing is a roller bearing with cylindrical rollers. Compared with its diameter, the rollers are both thin and long. This kind of roller is called a needle roller. Although it has a small section, the bearing still has a high load bearing capacity. Needle roller bearings are equipped with thin and long rollers (roller diameter d≤ 5mm, l/d≥ 2.5, l is the roller length), so the radial structure is compact. When its inner diameter size and load capacity are the same as other types of bearings, its outer diameter is the smallest, which is especially suitable for supporting structures with limited radial installation size

according to different applications, bearings without inner rings or needle rollers and cage components can be selected. At this time, the journal surface and housing hole surface matching the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure that the load capacity and operating performance are the same as those of bearings with rings, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to that of the raceway of the bearing ring. This kind of bearing can only bear radial load

needle roller bearing features

needle roller bearings are equipped with thin and long rollers (roller diameter d≤ 5mm, l/d≥ 2.5, l is the roller length), so the radial structure is compact, its inner diameter size and load capacity are the same as other types of bearings, and its outer diameter is the smallest, which is especially suitable for the support results with limited radial installation size. According to different applications, bearings without inner rings or needle rollers and cage components can be selected. At this time, the journal surface and shell hole surface matching the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure that the load capacity and operating performance are the same as those of bearings with rings, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or outer shell hole should be similar to that of the raceway of the bearing ring. This kind of bearing can only bear radial load

model comparison of needle roller bearing

needle roller bearing is a roller bearing with cylindrical rollers. The rollers are slender, the section is small, and the bearing load bearing capacity is high. Therefore, it is suitable for the support effect with limited radial installation size. The needle roller bearing is equipped with thin and long rollers (the roller length is 3~10 times the diameter, and the diameter is generally not more than 5mm), and the radial structure is compact

a complete bearing code is composed of a basic code plus one or more supplementary codes. All standard bearings of SKF have specific basic models, usually consisting of three, four or five numbers, or letters and numbers. The first number or the first letter or letter combination represents the bearing type, and the last two digits determine the ISO size series

because the models of needle roller bearings are relatively complex, here is only a brief introduction to the specific classification and model comparison of several needle roller bearings:

1, centripetal needle roller and cage assembly (K type)

2, needle roller bearing with double lock ring on the outer ring (Na type, NKI type, RNA type, NK type)

3, single row needle roller bearing with double flange on the outer ring (Na type, NKI type, RNA type, NK type)

4 Double row needle roller bearings with double retaining edges on the outer ring (Na type, RNA type)

5. Stamped outer ring needle roller bearings (HK type, BK type)

this kind of bearing has low cost and large bearing capacity, and is suitable for supporting structures with limited installation size

editor's summary: the above is the relevant introduction of needle bearing model query and needle bearing model comparison table. I hope it can help friends who need it in this regard! For more information, please continue to follow our website. More exciting content will be presented in the follow-up

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