Roller thrust bearing
A technology of thrust bearings and rollers, applied in the field of thrust bearings, can solve problems such as bearing surface damage, and achieve the effects of prolonged service life, good peeling resistance, and reduced load
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no. 1 example
[0086] A life test was carried out using the above-mentioned roller thrust bearing to prove that the roller thrust bearing of the present invention can reduce the differential sliding of the end faces of the rollers, reduce the stress concentration near the ends of the rollers, and reduce the Less frictional loss and wear inside the bearing, resulting in increased life against spalling of rolling and running parts.
[0087] The bearings tested had rollers with a diameter of 3 mm and roller bearing rings with an inner diameter of 65 mm and an outer diameter of 85 mm. The test was carried out at a temperature of 60-80°C, with a load of 1000kgf and a speed of 500rpm, and the lubricating oil applied to the bearing was spindle oil VG2 (oil film parameter, microliter (1ambda): 0.101).
[0088] Table 1 shows the results of tests with comparative examples of thrust needle bearings with standard rollers and standard housings. The life is represented by 10% of the life of the 10 tested...
no. 2 example
[0093] In the tests, the effective length of the two rows of crowned rollers used and the geometry at their end faces were varied. Table 2 shows the results obtained from the tests. A bearing cover (sample 5) with pockets radially arranged in two or more rows can prevent the rollers from interfering with each other, enhance the ability of the bearing cover to hold the rollers, reduce the skew of the rollers, and reduce friction loss and loss Small, so that the service life of the resistance to peeling is increased, and the achievable ratio is 1.5 of 10% of the service life.
[0094] It is apparent from the test results that for two or more rows of rollers (sample 6) with radially inner rows of rollers having crowns and radially outer rows of rollers having a smaller crown than the inner rows (sample 6), Radially outer rollers Two or more rows of rollers formed of only straight rollers (specimen 7), the contact surface pressure of the radially outer rollers is reduced compared...
no. 3 example
[0099] Such as Figure 5A and Figure 5B As shown, a test was carried out using a thrust needle roller bearing in which the bearing is composed of roller bearing rings 4 and 5, rolling elements (or rollers) 2 arranged between the roller bearing rings and a The bearing housing 3 of the element 2 is formed. The rolling elements therein are rolling elements with a certain camber. Rolling contact surfaces 6 are formed between the rollers 2 of the roller bearing rings 4 , 5 . Thrust needle roller bearings have roller bearing rings, rolling elements and bearing housings constructed as shown in Table 3.
[0100] Sample
Book
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Roller bearing ring gauge
grid
Roller specifications
10%
use
10% make
Lifespan
ratio of
Rate
peeling part
electric
Electromechanical
consumption
(A)
unit plane
Product (mm 2 )
Carbon...
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Abstract
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