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Analysis: characteristics of needle bearings
Source: China Bearing Network Time: 2014-06-04
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1. The speed is higher. Can accept higher radial loads (other bearings accept the same radial load as the radial dimension) 3 . The axial load 4 cannot be accepted; the definition of the needle roller bearing with higher rigidity and the general surface of the needle roller are slightly shortened at the proximal end face. The result of the touch correction of the needle roller and the raceway can prevent the destructive needle roller bearing from being damaged. Marginal stress. Support roller needle bearing is thick-walled outer ring; high temperature and high nitrogen quenching; high precision sorting roller is guided by the rib of high rigidity outer ring; use linear touch; roller can easily change directly on the raceway And can accept the huge load. To remove the stress; the outer ring of the support roller is drawn by curved surface; the curved roller has various specifications such as single and double sealing ring, without sealing ring and sealing ring.
Needle roller bearings are equipped with thin and long rollers (the length of the roller is 3~10 times the diameter; the diameter is usually not more than 5mm); therefore, the radial layout is compact; the inner diameter scale and load can be the same as other types of bearings; The most defensive 乇鹗 糜诰 虬沧俺å½ç¼¡èŠŸæ‹— 虬沧俺å½ç¼¡èŠŸæ‹— С С С С å³ ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ä¾æ® ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The outer surface and the outer surface of the outer casing directly serve as the inner and outer rolling surfaces of the bearing; to ensure the load and working performance is the same as that of the ferrule bearing; the hardness of the outer surface of the shaft or outer casing; the machining accuracy and appearance quality should be related to the bearing ring The raceway is similar. This type of bearing can only accept radial loads.
Type of needle bearing:
In addition to the catalogue; can be used for general engineering bearings; such as: open drawn cup needle roller bearings (1), closed cup needle roller bearings (2), needle roller bearings with inner ring (3) and not Needle roller bearings with inner ring / without inner ring without cages (4), with cages and without cages filled with needle bearings (5) SKF can also supply various types of needle bearings; Cage assembly 2, non-ribbed needle roller bearing 3, self-aligning needle roller bearing 4, combined needle roller/ball bearing 5, combined needle roller/thrust ball bearing 6, combined needle roller/cylindrical roller thrust bearing stamping outer ring Needle roller bearings Drawn cup needle roller bearings are needle roller bearings with a thin stamped outer ring. The primary feature is that the section height is very low and the load can be high. The first is for compact layout, low price and the inner hole of the bearing box cannot be used. As a bearing assembly for the needle roller cage assembly raceway.
The combined needle roller bearing needle roller bearing is a bearing unit composed of a combination of a radial needle roller bearing and a thrust bearing component; its layout is compact and compact. The gar is slightly smashed and stunned.蚋汉. And the product layout is diverse, adaptable, easy to install. Combined needle roller bearings are widely used in various mechanical equipment such as machine Tools, metallurgical machinery, textile machinery and printing machinery; and can make the mechanical system very compact and flexible
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