Q:The difference between ultra high speed angular contact ball bearings and other plain bearings

The roller of angular contact ball bearings is ball, because it is a point contact (different from roller bearing line contact), so it can provide higher speed, smaller heating quantity and higher rotation precision. In some high speed spindle applications, ceramic ball hybrid bearings will also be used. Compared with the traditional steel ball, the characteristics of ceramic ball materials endow the ceramic ball bearings with high rigidity, high speed, high temperature resistance and long service life, so as to meet the customers' demand for machine tool bearing products. (flight five Rui reminded you, at present, the mainland ceramic ball mixed bearings spot less, in your choice of such imported bearings, you need to pay attention to delivery time).On the contact angle of angular contact ball bearings, 15 popular and the contact angle of 25 speed; high performance usually contact angle of 15, while the axial contact angle of 25 with high bearing capacity. Due to the effect of preload contact application of ball bearings for precision angle is very large, such as high load capacity, high rigidity of the occasion, will generally choose bearing pre medium or heavy load; and for some applications of high speed and high precision, in the early selection of imported bearings, need to pay attention to choose the appropriate pre load. Pre load is generally divided into light, medium, heavy three kinds, generally light preload is more common. In order to facilitate the use of customers, the general will have universal matching, precision angular contact ball bearings. This type of imported bearings eliminates the customer's preload adjustment, thus saving installation time.

Q:What is the difference between deep groove ball bearings and angular contact ball bearings?

The above two said performance, actually because the contact angle is different, the original contact angle of deep groove ball bearing is 0 degrees. Contact angle of angular contact is greater than 0 degrees, generally 15 degrees. 25 degrees. 40 degrees. Thrust angle contact bearings greater than 45 degrees.The consequences of angular contact, as above two said.

Q:What does angular contact ball bearing 70216AC mean?

7--- angular contact ball bearing0--- normal width series2--- diameter series code, which means light series16--- internal diameter code indicating the inner diameter of 16*5=80mmAC--- internal structure code indicating the nominal contact angle of angular contact bearing is 25 degrees

Q:Two angular contact ball bearings, the use of clearance problems

The installation form is DB, and the inner ring preload is adjusted. For example, by adjusting the nut of the lock inner ring, tighten the force adjustment. Generally selected bearings, manufacturers have been conscious of the inner ring and outer ring thickness is not the same, that is, as long as locking the inner ring, the force is the factory set the amount of preload.

Q:What are the reasons for the use of tapered roller bearings and angular contact ball bearings?

Take the radial load and axial load of the shaft evenly, pay attention to the normal and reverse loading, or the axial direction can not be fixed.

Q:Is there a way to calculate the axial force of angular contact ball bearings?

This is the first response to the landlord, you can count, here introduces the concept of equivalent static load, a static equivalent radial load P0a (subscript 0A), a static equivalent axial load P0a (subscript 0A), and a static safety factor FS, we first check the static C0 7202AC (0 Department of AC, should represent the subscript) is the contact angle is 25 degrees, SKF C0 4800N, personally think that this value is too conservative, according to P0a=2.3*Fr*tg25+Fa (Fr is bearing radial load, axial load bearing is Fa, tg25 is the tangent, contact angle of 25 degrees according to the contact angle vary) and FS (fs=C0/P0) is greater than 1.5, launched: P0a less than 3200N, 1.07Fr+Fa less than 3200N that is to say, add up to force multiplied by the coefficient two component bearings, can not exceed this number. If only the axial force, the axial force is Fr=0, maximum 3200N can finally add a few points, FS safety coefficient is adjusted according to the condition, some places may be less than 1, and the place that cannot be less than 1.5, not less than 3, do not understand, temporarily by not less than 1.5. Also hope to help add master. And then there's the C0. Every brand might have a small difference. Here's SKF. So, if you calculate it in theory, you're going to make it smaller

Q:What are the differences between angular contact bearings and deep groove ball bearings?

The difference between deep groove bearings with the angular contact bearings in the structure is: deep groove bearings and rolling contact rail check section view on the parallel with the axis, the angular contact bearing rail has an open angle in one direction, and the axis or axis of the vertical line and an alpha angle. As shown. No. 6 bearings mainly bear radial force, bearing No. 7 can bear radial force and axial force.

Q:How many angles are there in angular contact ball bearings? How many degrees are they?

A stands for 30 degrees, A5 stands for 25 degrees, B stands for 40 degrees, and C stands for 15 degreesThe new Seiko NSK serves you!

Q:What does angle contact back to back mean?

Angular contact ball bearings are interesting bearings. Divided the face and back. And others, ha ha.See young lovers not.Happy time, hold together KISS, KISS is certainly the mouth to mouth, face to face, we use the word FACE to English it said about this status. ?When angry, who also ignore, two people are turned away, back to back, this is back to back, we use the word BACK to English it said about this status.Whether back-to-back or face-to-face, it must be by a movement of two or more than two people to complete (a person, it had to go in front of the mirror), we have two people to do that, we use DOUBLE to represent these two individuals.DOUBLE: twoFACE: faceBACK: backSee the above three words, no, very clever, angular contact ball bearings also say so.On behalf of the two sets of bearings with DOUBLE - is a "D",Using FACE for face to face, shorthand is a "F"",BACK - back to back, is a "B".OK, now came out in angular contact ball bearings inside the two face is bearing code BF, two back-to-back bearing is DB.

Q:What is angular contact ball bearing contact angle?

The angle between the imaginary line of the contact between the roll and the raceway and the vertical line of the axis of rotation