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The smelting quality of the bearing steel basically requires something


31st December 2009 Bearing Technology 0 Comments
Service life and dependability of the rolling bearing have close relations with the bearing with the smelting quality of the steel to a great extent. Because of the characteristic that the bearing steel has, the requirement for smelting quality is much stricter than the general industrial steel, such as chemical composition, purity degree, organization and homogeneity of steel,etc.. First, strict chemical composition are required The general bearing uses the steel to be mainly a high-carbon chromium bearing steel, namely about 1% of carbon content, join 1. About 5% of chromium, and contain ...
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How to install the loose ring of needle bearing of level thrust


31st December 2009 Bearing Technology 0 Comments
It is tight for the intersection of ring and inner circle and journal to cooperate for the transition, drive the urgent ring when the axle rotates, and rub with resting terminal surfaces and receive the axial effort Fx When, it is greater than the internal diameter and cooperate with the square of resistance to rub the moment, cause the urgent ring to cooperate with axle in the surface and rotate by force, aggravate the journal to abrade. So, should pay attention to the following several points at the time of the bearing installation of thrust. 1Urgent ring and loose ring judge, the aperture ...
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The structure of the rolling bearing code is analyzed


31st December 2009 Bearing Technology 0 Comments
1.Basic code The basic code is used for showing serial internal diameter, diameter series, width of the bearing and type, it is generally at most five -figure number, divide stating as follows first: 1The bearing internal diameters arises with the right of basic code the first, H a figure express. To the commonly used internal diameter d =20- The bearing internal diameter of 480mm is generally a multiple of 5, this two digits shows the size of internal diameter of the bearing 5 divided by quotient got, if 04 expresses d =20mm; 12 expresses d =60mm,etc.. As to the internal diameter it is ...
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A preparation method of the eccentric shaft is analyzed


31st December 2009 Bearing Technology 0 Comments
This kind of eccentric shaft requires the round outside off-centre of both ends to keep the same with round off-centre direction outside of basis, and off-centre is different in size, generally within 5mm, the off-centre error requires less than 0.05mm. In order to meet the above requirement, has adopted the following crafts and the frock. Process all exterior rounds of A basis well at first, leave the craft chuck of 50mm long 25mm at both ends of the axle, require the chuck to be coaxial with A basis and transverse to A basis the step. Both ends on axle be milled as chuck 42h6s ...
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Manufacture of the rolling bearing- One set of circles shapes and processes analyzing


31st December 2009 Bearing Technology 0 Comments
Though the intersection of rolling bearing and numerous type, structural pattern its, the intersection of public errand and grade, material select for use and preparation method store difference in, but its basic manufacture process includes the following contents: The part of the bearing is made - the part of the bearing is checked - the part of the bearing demagnetizes, wash, antirust - bearing assemble and bearing finished product check and bearing finished product demagnetize and washing - the intersection of bearing and finished product, with oil pack fight finished product put in ...
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Five kinds of daily rolling bearing performances and employ and analyzing


31st December 2009 Bearing Technology 0 Comments
1.Deep ditch ball bearing This kind of bearing is generally only used for bearing the radial load, because the backlash is non-adjustable, often used in the precision and expect much, not need in advance tight occasion, such as ordinary drilling machine main shaft,etc.. 2.The angle contacts the ball bearing This kind of bearing can bear radial and axial load at the same time, because will cause internal axial force while bearing the load of radial, so reply to install and use, it disposes the way " back-to-backly " , " face-to-face " , " series connection " With " unite more " Wait, ...
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Should pay attention to those in backlash of the bearing to choose


31st December 2009 Bearing Technology 0 Comments
First, choice principle of the backlash: 1,It adopt cooperate closely,inside and outside getting larger and not needing not if you can't reduce, if you can't rub by moment and ditch ball bearings dark, last loads axials greater or need to if you can't improve, transfer by heart the occasions of the performancesing when enclosing by temperature difference, should adopt the big backlash group. 2,When rotating the precision and demanding to be higher or needing to limit axial displacement strictly, should adopt the little backlash group. Second, factor related to backlash: 1,The inner ...
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The rolling bearing part makes the craft introduction needed


31st December 2009 Bearing Technology 0 Comments
Make every content of the process of the products and demand to work out according to certain procedure, fix with the standard form with the file, form the craft file. The craft file can be divided into two kinds: First, comprehensive craft file, work out all requirements for a product in a file in unison, simple and clear, it is easy to inquire, are suitable for the occasion with simple product structure, with little production lot. Second, classifying craft file, namely classify and work out according to the professional characteristic of the products manufacturing technology, stress the ...
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Which are the change step of shaking the bearing of the electrical machinery


31st December 2009 Bearing Technology 0 Comments
Shake the electrical machinery Change step of the bearing Shake, sift the intersection of vibration and electrical machinery used to worthy of mainly and two, on being vertical to shake electrical machinery, apply to, fasten, shake, sift mainly, horizontal to shake the electrical machinery and can be applied to various vibration and sieved on the apparatus, and it shakes and sifts main surging and shaking the source to shake the electrical machinery, its important position can be well imagined. Shake the electrical machinery and select the heavy-duty bearing for use, can bear the weight of ...
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The lubricant simple and easy differentiation method is analyzed


31st December 2009 Bearing Technology 0 Comments
Unless it is correct use by lubricant, it distinguish whether good and bad on its,on the a few years what time as follows experience be had to accumulate only for everybody's reference: First, lubricating oil: 1,Inspection of the moisture; 1 , while injecting the lubricating oil into the test tube, observe the transparency, if is not limpid and transparent and muddy, can judge tentatively that contain the moisture in the lubricating oil; 2 , inject about more than half of lubricating oil into in the test tube, heat to about 100- 120 ℃, if there is the noise, and have bubble appearing ...
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