preload preload preload preload

Definite principle of what the bearing is reported for repairment and method


30th October 2010 Bearing Technology 0 Comments
Changed first, to which kind of state the best opportunity rolling bearing confirming the bearing and reporting for repairment works over to repairing, this will be judged from damaged law and characteristic of the bearing. The damage of the medium and small-scale bearing of most consumption, the ones that or roll body usually with one set of circles are tired and excessively abrading as the main fact. As the bearing rolls the surface to enter the third stage when is abraded, or already presented some to lose and peel off, then the bearing will prone to failing quickly, will roll at this ...
Read More »

The air-introduced machine bearing burns tile reason analysis and administration


30th October 2010 Bearing Technology 0 Comments
Summary: For reduce thermal power plant, cook tile emergence of phenomenon further, try, it transports the intersection of axle bush and temperature in the course to be high boiling tile accident to go on analyzing on Xu pool the intersection of power plant and 62 No. air-introduced machine, the intersection of way,etc. and a plurality of warm to rise to axle bush respect reason go on analyzing from structure, lubricating oil, cooling of bearing, have proposed and implemented many kinds of corrective measures. Through designing and forcing and circulating and cooling the device outside, has ...
Read More »

The reason too high in temperature is analyzed and dealt with congealing the thrust bearing of the pump


30th October 2010 Bearing Technology 0 Comments
Summary: Analyze the reason that it is too high in temperature to congeal the bearing of the pump, put forward the corresponding countermeasure, has made the satisfactory result. Keyword: The bearing temperature of thrust is dealt with high Changxing two the intersection of 125MW and unit of power plant have 4 12NL- in all congeal pump is bag type vertical multistage centrifugal pumps of tube while being 160 type. Made by the factory of water pump of Shanghai. Its flow Q of technical specification of design =355m3/ h, lift H =158m, rotational speed n =1500r/ min. 4 have congealed the ...
Read More »

The water pump is overhauled: Machinery seals and dismantles, assembles the item that should be paid attention to


30th October 2010 Bearing Technology 0 Comments
It is to rotate the mechanical noumenonn and seal one of the most effective ways that machinery is sealed, its one's own precision processed is higher, especially moving, quiet ring, if the disassembly and assembly method is improper or improperlies use, the machinery after assembly is sealed not only reach the sealed purpose but also will damage the sealed component concentrated. 1,Attentive matters while dismantling 1While dismantling machinery to seal, forbid utilizing hand hammer and flat shovel, so as not to damage the sealed component. 2If when pump both ends have machinery to seal, ...
Read More »

Simply analyse the maintenance main point of the bent axle of the engine


30th October 2010 Bearing Technology 0 Comments
Hold up dragon's bent axle out of office and is made of wear-resisting casting iron, its function is to turn the upper and lower rectilinear motion of the piston into rotating sports, make the straight line of the piston do the work and turn into and rotate and do the work, then transmit the power out through the back flywheel, mainly by the belt plate, the song turns, export flange and flywheel,etc. to make up, the bent axle has in all six songs that abduct, each adjacent song turns and differs by 120 degrees of space angles, among them, one, six jars, the songs of two, five jars, three or ...
Read More »

Shaoguan the intersection of power plant and # 10 plane bearing shake the reason to analyze and deal with ‘ Table)


30th October 2010 Bearing Technology 0 Comments
10 machines of Shaoguan power plant # are while running at full capacity twice separately on March 18, 2004 because a watt of axles of # shake the trouble of protecting the movement jumping machine. Through record curve, go on the analysis, bearing disintegrate, check to unusual vibration with DCS when the person who jump, find out and confirm the reason for shaking the jumping machine, make and handle the scheme. Through going on the transformation to 1 of #, 2 bearings, has solved the problem of department's jitter of axle. The bearing is shaken; Reason analysis; Deal with 1, record and ...
Read More »

Skillful disassembly and assembly in the course of car maintenance


30th October 2010 Bearing Technology 0 Comments
In car maintenance, to difficult to dismantle surface or put, reply, use the intersection of specific purpose tool and parts of disassembly and assembly while being inconvenient, so long as the method is apt, the craft is rational, hold one " Skillful " The word can be not only damage the parts accomplish, but also could the disassembly and assembly smoothly. Now introduce several kinds of simple, practical methods. 1.The dismantlement steering wheel of the steering wheel is fixed and firm, it is improper, already time-consuming and strenuous to dismantle the method, it is apt to damage the ...
Read More »

Maintenance of numerical control lathe mechanical part and servicing unit


30th October 2010 Bearing Technology 0 Comments
Mechanical part and servicing unit are important components of the numerical control lathe. Among them, the mechanical part mainly includes: Vice the main shaft part of the lathe, ball guide screw nut, guide,etc.. But the servicing unit mainly includes: Head of graduation of numerical control, changing a one hundred sheets of devices, hydraulic atmospheric pressure systems and cooling and lubricating the device automatically. So, their daily maintenance is one of the working contents of whole maintenance of the numerical control lathe. Maintenance and maintenance of mechanical part of ...
Read More »

Maintenance and transformation of the import equipment


30th October 2010 Bearing Technology 0 Comments
" It is all one's life that science and technology produce strength" . Producing with foreign advanced technology and apparatus effective, can already raise output and quality of the products, promote the development of enterprise, can improve and accelerate the construction of modernization of China greatly. The import equipment plays a very great role in enterprise's production because of the advance of technology. The technology of the import equipment is comparatively advanced person, are mostly numerical control apparatuses. Because of the intersection of computer and development that ...
Read More »

Impact on a precision of ring out of shape of the roll and compensating


30th October 2010 Bearing Technology 0 Comments
First, preface D51 serial vertical reaming machine structure are simple, the fabrication cost is cheap, easy to use, used in ring ones such as the bearing ring, gear base,etc. to roll pass through many hands or places and expand extensively [1, 2 ] in the production. This serial reaming machine are limited by the structure, main rolls and core rollers are similar to the cantilever beam and support the form [1 ], piece prone to elasticity to be out of shape roll out of shape, in ring, the elasticity out of shape to have important influence on a precision of rolling ring roll. This text ...
Read More »