Imported bearings introduced

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Today, I ll introduce imported bearings contact angle and point of contact with you.ball bearing companies
1, the contac t angle refers to the journal and sliding bearing contact surface on the central angle. Contact angle can not be too large nor too small. Pressure to increase the contact angle is too small to make plain bearings, in severe cases make plain bearings have a greater deformation, accelerated wear and shorten life; contact angle is too large, it will affect the film formation, not a good liquid lubrication. Experimental studies have shown that the sliding bearing contact angle limit is 120 °. When the sliding bearing wear to this contact angle, liquid lubrication is necessary to destroy. Therefore do not affect sliding bearing pressure conditions, the contact angle as small as possible. Theoretical analysis, distance from the friction when the contact angle of 60 °, the smallest friction torque, so the recommended speed is higher than the 500r/min The sliding bearings, contact angle 60 °, speed below 500r/min the sliding bearing, The contact angle of 90 °, can be 60 °.ball bearing suppliers
2, the journal of the point of contact with the sliding bearing surface exposure per unit area of actual contact points. The more the fine points of contact, the more uniform, said sliding bearing scraping the better, and vice versa, said sliding bearing scraping bad. Generally speaking, the finer points of contact and the more, scraping the greater difficulty. Production should be based on the performance of sliding bearings and working conditions to determine the point of contact information listed for reference in the following table: sliding bearing speed (r / min) 100 contact points (25 × 25 mm area of the contact points) more than 25 ~ 5 <BR> 100 ~ 500 10 ~ 15 <BR> 500 ~ 1000 15 ~ 20 <BR> 1000 ~ 2000 20 ~ 252000 Grade â…  and â…¡ precision machinery can be used on the table data, level III accuracy table data on the machinery can be hal ved.thrust bearings