Jiaxing bearing small make up to introduce the five kinds of commonly used rolling bearing for you

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. 1. Deep groove ball bearings generally only used to bear radial load, these bearings with clearance is not adjustable, so often used for accuracy is not high, not to be preloaded occasions, such as ordinary drilling machine spindle. 2. Angular contact ball bearing this kind of bearings can withstand radial and axial load at the same time, because under the radial load will cause internal axial force, so should be installed in pairs, the configuration way 'back-to-back', 'face-to-face', 'series' and' multigang ', etc. , and through the preloaded can improve the stiffness of the spindle. This kind of bearing contact Angle with 15 & deg; ,25度; 40度; Three, in which the contact Angle of 15 & deg; B7000CY type high precision angular contact ball bearing is specially designed for high speed grinder spindle bearing, the bearing in addition to the internal structure design changed, ring and rolling body selects the high quality electric slag bearing steel manufacturing. Cage materials for phenolic laminated tube, tolerance grade 5, 4 and 2 levels. Therefore, this kind of bearing with high rotation precision and limiting speed, small friction, low temperature rise. 3. Two-way thrust angular contact ball bearings are usually using 230000 type two-way thrust angular contact ball bearing, contact Angle of 60 & deg; By a seat belt lubricating oil hole, two axes, a baffle and two sets of steel ball and cage components. Choose the right baffle height can make the bearing has the required pre-load after assembly. The bearing can be subject to bi-directional load and have good rigidity, low temperature during normal lubrication, high speed, and easy to install, as a kind of new structure, is used for grinding machine, lathe, boring machine, milling machine, drilling machine, such as the spindle, use commonly equipping with the double row cylindrical roller bearings. 4. Double row cylindrical roller bearing this kind of bearing can withstand the bigger radial load and high speed are allowed. Two columns of bearing roller with cross arranged, when rotating double than single bearing, the frequency of the wave amplitude reduced by 70%. Commonly used this kind of bearing has two forms: NN30 / W33, NN30K/W33 two series of bearing inner ring guard, outer separable; NNU49 / W33, NNU49K/W33 two series of bearing outer ring guard, inner ring can be separated, of which NN30K/W33 and NNU49K/W33 series inner ring for the taper hole ( Taper 1:12) , to match the conical journal of main shaft, the axial movement within the circle, can make the inner ring swelling, to reduce the bearing clearance and preload bearings. Cylindrical hole bearing usually adopt hot charging, using the interference fit decrease the bearing clearance, and achieve the goal of preloaded. Inner circle of separable NNU49 series bearings, general inside is installed on the main shaft of raceway again after finishing, in order to obtain high precision of the spindle rotation. 5. Tapered roller bearings can withstand radial and axial load at the same time, double row tapered roller bearing can be subject to bi-directional load. Because of the tapered roller large end and sliding friction between inner ring guard, its limit rotational speed is often less than the size of cylindrical roller bearing. Hollow taper roller bearing oil cooling roller, lower the temperature, so as to improve the speed of the allowed. But this kind of bearing manufacture process is complex, the requirement of the lubrication system of nc machine tools are high, generally only used for special requirement on the horizontal axis. If you are more interested in jiaxing bearing group co. , LTD. The author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you full close jiaxing bearing purchasing consultant company. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source