The angle of uniline has the following structural styles to contact the ball bearing:
1 The angle of separate type contacts the ball bearing
The coaxiality of bearing S70000, its outer lane ball track have lock, can separate with inner circle, retainer, the intersection of key link and the intersection of ball and assembly, therefore can install separately. This kind is mostly that internal diameters are smaller than the miniature bearing of 10mm, used for the top trochanter, little electric motor,etc. having the running balancing, noise, vibration, stability in a device of the great requirement.
2 It is not the angle of separate type that contacts the ball bearing
There are locks in the collar channels of this kind of bearing, so two collars can’t be separated. Divided into three kinds according to the contact angle:
Contact angle α=40 degrees, are suitable for bearing the greater axial load;
Contact angle α=25 degrees, are used in accurate main shaft bearings more;
Contact angle α=15 degrees, are relatively used in precision mainshafts of jumbo size more.
3 The angle disposed in pairs contacts the ball bearing
The angle disposed in pairs is exposed to the ball bearing being used for bearing the occasion of radial load and axial load at the same time, also can bear the axial load toward load and any of pure foot-path. This kind of bearing is by the factory according to certain loaded requirement in advance, it is in pairs that the apolegamy is made up, offer users to to use. After the bearing is installed on machine and fastened, have totally dispelled the backlash in the bearing, and make the key link ball of one set of cycle sums in preloading state, therefore has improved the rigidity of the combination bearing.
The angle of uniline is exposed to the foot-path relying mainly on radial load of the ball bearing, axial union load, can also bear purely radial load, except that the series type is disposed, two dispose, can bear axial load of direction any while being other. While bearing radial load, will cause additional axial force. So generally need to use in pairs, make the arbitrary bearing association that mated, the bearing installed in pairs is divided into according to the associations of its outer lane of different ends: Back-to-back disposition, face-to-face disposition, series connection are disposed ‘ Also claim: O type disposes, X-type disposition, T shape to dispose Three kinds of types:
Back-to-back disposition, the POSTF coaxiality is DB such as 70000 / DB ,The loaded line of bearing mating back-to-back is separated to the axle of the bearing. Can bear the axial load of acting on two directions, but the load in each direction can only be born by a bearing. The bearing of back-to-back mounting offers the stiffness relatively higher bearing to dispose, and can bear overturning moment.
Dispose face-to-face, the POSTF coaxiality is DF such as 70000 / DF ,The loaded line of bearing mating face-to-face is converged to the axle of the bearing. Can bear the axial load of acting on two directions, but the load in each direction can only be born by a bearing. This kind of disposition is not so high as the stiffness of mating back-to-back, and is not very suitable for bearing overturning moment. The stiffness of this kind of disposition and ability to bear overturning moment are not so good as DB and dispose the form, the bearing can bear the two-way axial load;
Connect the disposition in series, the POSTF coaxiality is DT such as 70000 / DT ,When the series connection is disposed, the loaded line is parallel, radial and axial load are shared evenly by the bearing. However, the bearing group can only bear the axial load of acting on a direction. If the axial load acts on the opposite direction, or if compound loads, must increase, mate third bearing that the bearing regulates by one relative series connection. This kind of disposition can also connect three or a plurality of bearings in series in the same supporting place, but can only bear the axial load of the single direction. Usually, for being balanced limiting axial displacementing of axle, another support place need installation can bear another direction bearing of axial load.
In addition, another kind is for arbitrary uniline angle that mates to contact the ball bearing. The bearing process specially, all right two back-to-back, two face-to-face two arbitrary way associations of connecting in series etc., mating in the combined end play can be chosen depending upon need, the coaxiality CA of the POSTF shows the end play is minor, CB shows the end play is moderate, CC shows the end play is relatively big.
The omnipotent bearing that mates, can also dispose into the bearing with pre- interference according to the instructions for use, and will put the coaxiality GA, GB, GC to represent afterwards. There is minor pre- interference after GA shows that mates; There is medium-sized pre- interference after GB shows that mates; There is greater pre- interference after GC shows that mates.
1.The angle contacts the ball bearing
Angular Contact Ball Bearings Can bear radial load and axial load at the same time. Can work under higher rotational speed. The bigger the contact angle is, the higher axial bearing capacity is. The high-accuracy and high-speed bearing usually fetches contact angle of 15 degrees. Under the function of axial force, the contact angle will increase.
The angle of uniline is exposed to the axial load that the ball bearing can only bear a direction, while bearing radial load, will cause additional axial force. And can only limit the axle or outer cover in the axial displacement of a direction.
Pair ball bearing in pairs
If the installation of pair in pairs, make the outer lane of a pair of bearings relative, namely the wide end, in the face of the wide end, the narrow end, in the face of the narrow end. In this way, can avoid causing additional axial force, and can make the axle or outer cover confine in two directions to axial backlash range.
The horn can have relative displacement on the horizontal shaft axis because of the ball tracks of their Internal and external cycles while exposed to the ball bearinging, so can bear radial load and axial load at the same time – -Unite load the angle of uniline is exposed to the ball bearing and can only bear the axial load of the single direction, so generally often adopt and install in pairs . Material of retainer have brass, synthetic resin,etc., distinguish and in accordance with the intersection of bearing and form, service conditions.
The angle contacts ball bearings more and is made by foreign bearing manufacturers, it is applied to import equipment such as ball bearing 3204RS of contact of angle,etc. that there is more China
2.Contact the ball bearing type
The ball bearing is as follows, that the angle contacts 7000C type ∝=15 degrees 7000AC type ∝=25 degrees And 7000B ∝=40 degrees Several kinds of types. The lock of this kind of bearing is on the outer lane, the general Internal and external cycle can’t be separated, can bear radial and axial union load and axial load of a direction. The ability to bear axial load is decided by contact angle, the larger the contact angle is, the ability to bear the axial load is high. This kind of bearing can limit the axle or outer cover in the axial displacement of a direction.
Exposed to great of the ball bearing terminal rotational speed, can bear radial load and axial load at the same time, also can bear the pure axial load, the ability of its axial load is decided by contact angle, and contact angular increase to increase at the same time.
3.The angle of uniline contacts the ball bearing
The angle of uniline is exposed to the axial load that the ball bearing can only bear a direction, while bearing the radial load, will cause additional axial force, must construct to the corresponding reverse load, so, this kind of bearing generally all use in pairs. The two-bank angle is exposed to the ball bearing and can bear the greater radial, axial two-way union load and load of force moment relying mainly on radial load, it can limit the axle or two-way axial displacement of outer cover, the contact angle is 30 degrees. Bearing coaxiality: 7
4.The setting angle in pairs contacts the ball bearing
In pairs setting angle exposed to ball bearing, can bear relying mainly on radial load radial, two-way the intersection of union and load axially, also can bear the pure radial load. The series connection disposes the axial load that can only bear the single direction, two kinds of other dispositions can bear the axial load of any direction. The bearing of this kind is generally made up and submits users in pairs by the apolegamy of production firm, precompress and is full of after installation, one set of cycle sums steel ball is in adding the load-up condition in advance axially, therefore has improved the full group bearing as supporting rigidity and rotating the precision singly. Bearing coaxiality: 0
5.The angle contacts the major application of the ball bearing
The angle of uniline contacts the ball bearing: The basic shaft of the lathe, high-frequency motor, firing the steam turbine, centrifuge, light car front wheel, differential gear box pinion shaft
The two-bank angle contacts the ball bearing: Oil pump, Roots blower, air compressor, all kinds of speed changer, fuel jet pump, printing machine
The angle of uniline has the following structural styles to contact the ball bearing: