ZYS Precision Bearing Company has seven production line six grades products through certification

Company has seven production line six grades  products through certification, achieved a historic breakthrough.  Group Global Quality Manager and two experts in the field after two days of rigorous and meticulous certification, combined with the pre-trial materials supply review the results, finds Xinyegang quality system and physical quality of products fully comply with the certification requirements brands. ZYS Precision Bearing Xinyegang said it would strengthen its cooperation as a strategic Precision bearing  partner, and continue to expand other varieties and production line certification, has strengthened cooperation between the Xinyegang quality certification by the German means that its products sold in the EU as well Bearing Test Machine as Western countries unimpeded. It is reported that Xinyegang existing Slewing bearing products by more than 40 international and domestic certification authority and the famous authorized users. Among them, the seamless steel pipe for the national inspection-free products, the  certification, certification; oil pipe through the API certification; bearing steel has reached the international advanced level, won the Swedish company SKF, American General's recognition of accreditation, etc.

Will affect the bearing manufacturer temperature of the bearing which aspects?

After bearing pressed into the bearing block should be flexible rotation without feeling. If significant rotation is not flexible, it indicates the size of the shaft is too great, the tolerance to be reduced. After such thrust high speed bearing  pressed into the shaft turned by hand obvious "imperfections" sense, it may be too much tolerance of the shaft or shaft roundness bad. So when good control shaft and the taper roller bearing  chamber also control the roundness tolerance, many domestic manufacturers only tolerance control, no roundness control.
Because the taper roller bearing  re high-precision products, such as improper assembly is likely to cause damage to the bearing channel, leading to bearing damage. Thrust cylindrical roller bearings in the assembly should have a dedicated mold and can not beat, pressed into the shaft when the force only a small circle, the circle of force only when the pressure of the big circle. When using pneumatic or hydraulic assembly requirements, in the press-fit upper and lower mold levels to remain outside the state, if any, bearing channel tilt will cause damage due to power, leaving the bearing guide ring.

taper roller bearing with its own mounting holes

Also called slewing ring is a special structure can withstand large large axial load, radial load and overturning moment consolidated load bearing. Typically, with its own mounting holes, lubricants holes and sealing devices, to meet the different needs of a variety of different conditions of various types of host. Turntable bearing itself has Bearing manufacturer a compact, easy to guide rotation, easy to install and easy to maintain. Structure in the form of wheel bearings wheel bearing structures commonly used classification of a single row, double row four point contact ball slewing bearings, double row angular contact thrust ball bearing turntable, Cross cylindrical roller and cross tapered roller wheel bearings, three-row cylindrical roller slewing bearing, ball stud mix different structural forms high speed bearing turntable bearings. Distributed in accordance with the above types of bearing parts and whether toothed gears are divided into different structures no gear, external gear, and the gear and so on. Wheel bearings wheel bearings bearing characteristics can satisfy the needs of working under various load conditions, depending on a host of structural features. Among them, four-point contact ball slewing bearings with high dynamic load capacity. Double row ball slewing bearing capacity than a single volleyball turntable has greatly improved. Cross cylindrical roller slewing with high static load capacity. Ball joint wheel bearing pillar in ensuring the accuracy of certain rotating conditions, with large axial and radial loads and the ability to overturning moment.

Fixed according to the work load of the size taper roller bearing

In order to ensure the bearing after installation without excessive deformation must do:
(1) shaft and housing bore roundness and a shoulder block to the verticality of precision bearings according to the respective requirements.
(2) it is necessary to accurately calculate the amount of interference with the rotation of the ring, but also accurately calculate the appropriate amount of fixed rings.
Rotating rings blanch the extent possible, the amount of interference should also get smaller. As long as the effects of thermal expansion and ensure the operating temperature, and the maximum Sealed bearing  speed under the influence of centrifugal force, so as not to cause a tight fit creeping or sliding surfaces. Fixed according to the work load of the size of the ring and bearing size, select a very small clearance fit or interference fit, too loose or too tight is not conducive to maintaining the exact original shape.
(3) If the bearing at high speed operation, and higher operating temperature, should pay special attention to rotating rings can not be too loose to prevent the tie appeared eccentric, and a gap can not be fixed ferrule to prevent the ferrule deformation under load taper roller bearing and vibration excitation.
Impact (4) to take a small Four-Row Taper Roller Bearing fixed ring interference fit condition is to match the shape of the surface of both sides have high accuracy and less roughness, or cause installation difficulties disassembly harder, also need to consider the thermal expansion of the spindle .
(5) the use of pairs of angular contact ball bearing spindle, mostly lighter loads, such as interference with its larger, its internal axial preload amount will be significantly larger, adversely affected. Double row cylindrical roller bearings and tapered roller bearing spindle spindle, its load is relatively large, so its interference with relatively large.

Slewing bearing Many factors, improper installation methods

The most fundamental principle of bearing maintenance that must be maintained before installation and installation of bearings clean. Many factors, improper installation methods, dirty hands or tools, such as contaminated lubricants will damage the bearings. Regardless of the quality of the bearings or seals, these factors may cause bearing damage quickly. Bearings must be kept at all times clean and keep the bearings clean clutch bearings beforehand than afterwards clean bearing much simpler. Many bearings are not separate, more difficult to clean the bearings work. With tolerances and tolerances can be found, and the gap with other information. Installation of a variety of seal oil seal installation method, each vendor told a different story, even seal nearly identical. But the best way to do it according to taper roller bearings the manufacturer's instructions. If you can not get the installation method, we have the following principle to give you some tips. Cold or hot loaded bearing outer ring is mounted if an interference fit, usually installed in the cold method, if the bearing inner ring is an interference fit, as the case feasible cold loading or thermal loading. Small bearings without heating, the use of hydraulic or sleeve plus hammer to install. There are many ways large bearings, grease type, hydraulic or heating and so on.