2014年2月21日星期五

ZYS clutch bearing rather than along the coast

 The investment project was Hefei, Anhui Province, and governments at all levels attach great importance. Hefei Municipal Party secretary Wu Chun-rong, Municipal Committee, vice mayor Yan Gang, specially to attend the ceremony, met with Japan's Seiko president Norio Otsuka party. The ZYS Angular contact ball bearing foundation stone laying ceremony by the Hefei High-tech Zone Xia Xiangdong Director Business Planning and Investment Co., Ltd. NSK Minister Fan Wensheng served jointly presided over the ceremony. Municipal Committee, Deputy Mayor Wei Xiaoming, Municipal Committee, vice mayor Liu Liedong, Municipal Committee, vice mayor Lu Shiren, attended the groundbreaking ceremony.

      Seiko Corporation president Norio Otsuka believes that China's development is definitely the future of the center is located in central Hefei, rather than along the coast. Therefore,  is the core of the product line, the global share of the first ball bearing project ZYS Precision Bearing investment in Hefei. Hefei bearing production company is the first in China to set up 12 plants will be equipped with the most sophisticated equipment,  outside of Japan to become the largest production base.  Hefei plant will be subject to local employees to operate in China, while the rapid development of industry from around the world to provide high quality products. Inland areas will be the core of the future development of China, Hefei, Anhui able to have the opportunity to build factories and regions, contribute to the community, it is our pleasure to thank the local government to give NSK this opportunity.

2014年2月14日星期五

ZYS clutch bearing within this life , should occur initial fatigue damage

Rolling of life in revolutions ( or hours to work under a certain speed ) , definition: bearings within this life , should occur initial fatigue damage ( spalling or defect ) any bearing on their laps or rolling . However, both in laboratory tests or in actual use , can be clearly seen , the same appearance under the same operating conditions of the bearing , the actual life different. There are also a number of different definitions of deep groove ball bearings , " life " , one of which the so-called " working life ", which represents the actual life of a bearing damage can be achieved before by wear, damage is usually not caused by the fatigue , but is caused by wear and tear , corrosion, seal damage and other reasons .
By mechanical means of the metal surface layer is plastically deformed to form a high hardness super-precision bearing and high strength hardened layer , the surface strengthening method called surface deformation strengthening , also called hardening . Including blasting , sandblasting, cold extrusion, rolling, cold- milled and shock , explosion shock processing and so on. Features deep groove ball bearings of these methods are: strengthening layer increased dislocation density , sub- crystal structure refinement, making it the hardness and strength increased , the surface roughness value decreases, the surface can significantly improve the fatigue strength of parts and reduce fatigue notch sensitivity. This enhanced process is simple , the effect is significant , there is no clear Wind turbine bearing  between the hardened layer and the substrate , the structure of a coherent , easy to fall off in use. Most of the methods which have been applied in the bearing industry : rolling surface is applied to strengthen the impact of these methods , precision ferrule RCC has become a new and enhanced processing methods .

2014年1月20日星期一

The tapered roller bearings nsk are all soaked tank

Tapered roller bearings have tapered inner and outer ring raceways , tapered rollers are arranged between the two. All conical surface projection lines are a little get together with the ZYS wind turbine bearing  axis . This design makes tapered roller bearings particularly suitable for combined ( radial and axial ) loads. Most of axial load bearing capacity is determined by the contact angle α ; greater the angle α , the higher the axial load capacity . Angle size calculation factor e ; e value , the greater the contact angle , bearing axial load greater applicability . Wanguan Metal Machine Network Xiaobian to introduce
Bearing Maintenance : Bearing cleaned up : Assembly under nsk tapered roller bearings overhaul , the first recorded appearance of bearing , confirmed the residual amount of lubricant , lubricant used after sampling review , wash bearings.
The tapered roller bearings nsk are all soaked tank , oil -filled bearings from the machine brought up , and then flows back to the oil tank should be slightly less than the minimum Gulu body place. Such a measure normally smooth application of grease -20 ~ 120 ℃, while above 150 ℃ cryogenic applications are being , arise from basic oil boiling too fast, run off and serious scenes, greatly extending the life expectancy ZYS Angular contact ball bearing  applications . As cleanse agent, generally use gasoline, kerosene . However, because the application of the basic mineral oil , so that is the kind of smooth fat being played together on a number of biochemical markers buckle rust and rust function outside . Mid-sized non- break ball bearings , the inner ring with one hand support level , filled outer confirm whether smoothly. Because the choice of the kind of smooth fat fiber delicate, melancholy light filter to waste lithium thickener , application of mineral oil as the basic oil, very light foot outside the high-end bearing is difficult to know the value of increased vibration request . In order to determine the assembly up of tapered roller bearings nsk whether you can use to clean bearings after being reviewed. Oil can be taken away due to repeated heat determine the bearing cool down , so law applies to high speed bearing components. Law suitable for high-speed, high-temperature lubrication of the bearing components. Wanguan Metal Machine Network Xiaobian to introduce

2014年1月13日星期一

The main task of bearing failure analysis is based on a lot of background material


metallurgical quality ntn bearing material was the main factor in the impact of early bearing failure . With metallurgical technology ( such as bearing steel vacuum degassing, etc. ) progress, raw material quality is improved. Raw material quality factors in ZYS wind turbine bearing cylindrical roller bearing failure analysis in the proportion has decreased significantly , but it is still one of the main factors bearing failure . Appropriateness of the selection is still bearing failure analysis must be considered.
The main task of bearing failure analysis is based on a lot of background material , analysis of data ZYS Precision Bearings and failure modes , identify the main factors causing ntn bearing failure , so that puts forward improvements to extend bearing service period to avoid cylindrical roller bearings sudden occurrence of early failure .
Second is probably too big a load ( preload too big ) . Speed ​​is too large. Clearance is too small . Water or other foreign matter intrusion. If the above two cases is that the shaft is not so bad precision of the bearing housing , shaft deflection great. See here, I think everyone wants to know the solution of it, first of all, to study the lubricant and lubrication method , the election of the cylindrical roller bearing lubricant , and its amount , but also to rectify ntn bearing selection . Research to tie , bearing clearance and preload , and improved sealing device . Check the accuracy of the shaft and the bearing housing .

2014年1月8日星期三

Drum Roller Bearings heat treatment


Fundamental types of drum-type roller bearings either using window glass fiber reinforced polyamide (nylon) 66 stick frame (suffix T), also can be machined solid brass stick rack (suffix MB). Glass fiber reinforced polyamide 66 insist on lower shelf stable up to temperatures form 120 ℃. If the bearing oil is smooth, then smooth oil additive ball bearing will reduce the use of stick frame life of aging oil at low temperatures also have an adverse effect on the stick rack; therefore necessary to monitor the oil change.
Drum Roller machine tool spindle Bearings heat treatment
After heat treatment of the FAG drum roller bearings, tasks temperatures up to 150 ℃, the temperature of the outside diameter of 120mm beyond the task of bearing up to 200 ℃, the size is still able to adhere firmly. If the bearing polyamide stick frame, the frame data necessary to pay attention to adhere to temperature constraints.

2013年12月31日星期二

is the core of the machine components


 The  exhibitors  philosophy is  Your Real Partner.", The ever-changing business environment also affects the manufacturing sector , in this context ,  always take " adhere to the support of customers' products become true partners in the creation of the target , to provide customers with exceptional service and solutions "determination to work . Deal with customers face in the production and development problems , professional expertise in the practical application of engineering consultants will utilize comprehensive technical strength bearings and precision machine products , and dedication to customers exact appropriate advice and solutions.
 Bearings, ball screws , linear guides , spindle and  products , is the core of the machine components. is the only one able to complete a full five major parts production and development of manufacturers. With super-precision bearing strong comprehensive technical strength is based on our detailed sales and services to meet the comprehensive needs of customers.

2013年12月26日星期四

Contact fatigue spalling occurs in INA bearing surface


Contact fatigue spalling occurs in INA bearing surface , often accompanied by fatigue cracks , first produced from the contact surface of the following maximum alternating shear stress , and then extended to the formation of different surface flaking shapes, such as point-like pitting or pitting as spalling , flaking into small pieces turbocharger bearings called superficial peeling. Due to the gradual expansion of flaking surfaces , but often extend to the deep , forming deep peeling. Deep contact fatigue spalling is a source of fatigue failure .
Continuous wear will cause spherical grinding spindle roller thrust bearing parts gradually damage and eventually lead to the loss of dimensional accuracy INA bearings and other related issues . Wear may affect the shape change , with the gap increasing and work surface morphology changes that may affect the lubricant or it reaches a certain level of pollution caused complete loss of lubrication , which makes bearings and even the loss of rotational accuracy can not operate normally . Wear failure is one of the kinds of bearings common failure mode, press the wear is usually divided into the most common form of abrasive wear and adhesive wear .