2013年8月22日星期四

In order to understand


SKF bearings equipment for regular maintenance, operation and external parts replacement bearings were removed for inspection, required in order to determine whether this bearing parts can be used again and record usage of good and bad. Should carefully investigate and record split down the bearing and appearance of the situation. In order to understand and investigate remaining amount of lubricant, after the sampling, to a good wash bearings.
Second, check the SKF bearing raceway, rolling surface and the mating surface of the situation and the state of wear of the cage and other signs of damage and anomalies in particular, to observe the raceway running track. Determine the tapered bearing can be used again, to consider the extent of bearing damage, machine performance, the importance of operating conditions, inspection cycles and then later decide.
Test results, if found bearing damage and abnormal situation, please follow identify the reasons for the phenomenon of bearing damage, develop countermeasures. In addition, test results, if there are several flaws words below, bearing it can not be used again, you need to replace the bearings.
a. inner and outer rings, rolling elements, cage cracks and any one of them will be fragmented.
b. inner and outer rings, rolling elements of any one of a release.
c. raceway, ribs, rolling a significant injury card.
d. cage badly worn or loose rivets terrible.
e. raceway, rolling rust and have scars.
f. rolling surface, rolling on and playing a significant indentation marks.
g. inner diameter surface or outer diameter on the creep.
h. overheating discoloration powerful.

When the bearing diameter less than 20mm


ID Code: Under normal circumstances bearing diameter bearing inner code (the basic code of the last two digits) × 5 = internal diameter (mm), Example: 6204 bearing diameter is 04 × 5 = 20mm.
Common special cases:
(I) When the bearing diameter less than 20mm
Bearing diameter size (mm) 10 12 15 17
Corresponding inner code is 00010203
(Ii) When the bearing diameter less than 10mm, the direct use of the basic code of the last one represents the bearing bore size; Example: Bearing 608Z, with a basic code '608 'as the last one eight inner diameter, the inner diameter of the bearing 608Z 8mm. An inner diameter of 627 so 7mm, 634 an inner diameter of 4mm.
(Iii) the Precision bearing bore is not a multiple of 5 is equal to or greater than 500mm, diameter code with a slash '/' character. Another situation: There are some old code needle bearing diameter code directly using the '/' character. These types of situations '/' behind several values ​​for the bearing bore size. Example below:
Bearing 619/1.5 62/22 60/5003519/11207943/25
Diameter size (mm) 1.5 22 500 1120 25
These are some of the common representation bearing bore, some of the international code of the company are not all the same; should to the actual situation. Specifically to refer to a variety of materials and samples of each manufacturer.
Size code: for expressing the same diameter but the diameter and width of the bearing, see Fig.
Diameter Code ↑
↑

Width Code
OD Series Code: special light (0,1), light (2), middle (3), weight (4)
Width series code: normal width to "0", usually not marked. But for tapered roller bearings (Class 7) and self-aligning roller bearings (3 classes) and other types can not omit the "0"
6010 is slim series, used in light load, high speed; 6210 series is a lightweight, light load speed most reasonable, is the application of the most extensive type; 6310 is the heavy series; 6410 series is re-used for heavy low. Medium and heavy duty most widely used, such as various types of mechanical transmission components, small motors, conveyor lines, motorcycles, etc. Almost all the machinery and equipment used in both types.
Type code: should be remembered that the commonly used bearing code: 3,5,6,7, N 5, corresponding to the old code 7,8,0,6,2 classes. .
Tolerance class code table:
Radial bearings and angular contact ball bearings are divided into five below (High → Low)

In order to understand and query visit remaining amount of lubricant



Nsk bearing equipment for regular maintenance, operation and peripheral parts change when the suspension is removed check the bearings, the demand in turn determine whether the second Roller bearing parts can be re-applied and recorded using the good in bad condition. In order to understand and query visit remaining amount of lubricant, the sample back to a good wash bearings.
    a. inner and outer rings, rolling elements, any of a confrontation between the two frame cracks and rendering debris.
    b. inner and outer rings, rolling a strip of any one there.
    c. raceway, ribs, rolling a significant injury card.
    d. confrontation frame badly worn or loose rivets ferocious.
    e. raceway, rolling rust and have scars.
    f. rolling surface, rolling on and playing a significant indentation marks.
    g. inner diameter surface or outer diameter on the creep.
    h. overheating discoloration ferocious.
    i. grease seals and dust sealed bearings to severe damage.
Nsk bearings in use, sometimes we can hear bearing noise, in fact, theoretically, the bearing itself does not produce noise, and the noise we heard was bearing directly or indirectly arising from the surrounding structure vibrating sound effect. So, why would the bearing vibration it? Today, it is for me to explain something simple for everyone, please read carefully!
When changes in the number of rolling loads, will produce excitation when a radial load on a load of imported bearings, its load bearing rolling element number will be some changes in the operation, which caused the load shift direction . The resulting vibration is inevitable, however, now seems to have a bearing vibration and noise are reduced, which is why? Nsk bearings due to the current use of the design to reduce the pre-load, rolling load at all, thereby reducing vibration, but also reduces the noise. Although the use of the pre-loaded, but can not completely relieve the vibration and noise problems. So, how to further reduce the noise it?
1, to prevent resonance excitation components and between the components of the vibration excitation.
2, change the stiffness, and to achieve the purpose of changing the critical frequency.
3, remove the critical excitation vibration.

nsk bearing regular maintenance and noise reduction methods


Nsk Backing bearings equipment for regular maintenance, operation and peripheral parts change when the suspension is removed check the bearings, the demand in turn determine whether the second bearing parts can be re-applied and recorded using the good in bad condition. In order to understand and query visit remaining amount of lubricant, the sample back to a good wash bearings.
    a. inner and outer rings, rolling elements, any of a confrontation between the two frame cracks and rendering debris.
    b. inner and outer rings, rolling a strip of any one there.
    c. raceway, ribs, rolling a significant injury card.
    d. confrontation frame badly worn or loose rivets ferocious.
    e. raceway, rolling rust and have scars.
    f. rolling surface, rolling on and playing a significant indentation marks.
    g. inner diameter surface or outer diameter on the creep.
    h. overheating discoloration ferocious.
    i. grease seals and dust sealed bearings to severe damage.
Nsk bearings in use, sometimes we can hear bearing noise, in fact, theoretically, the bearing itself does not produce noise, and the noise we heard was bearing directly or indirectly arising from the surrounding structure vibrating sound effect. So, why would the bearing vibration it? Today, it is for me to explain something simple for everyone, please read carefully!
When changes in the number of rolling loads, will produce excitation when a radial load on a load of imported bearings, its load bearing rolling element number will be some changes in the operation, which caused the load shift direction . The resulting vibration is inevitable, however, now seems to have a bearing vibration and noise are reduced, which is why? Nsk bearings due to the current use of the design to reduce the pre-load, rolling load at all, thereby reducing vibration, but also reduces the noise. Although the use of the pre-loaded, but can not completely relieve the vibration and noise problems. So, how to further reduce the noise it?
1, to prevent resonance excitation components and between the components of the vibration excitation.
2, change the stiffness, and to achieve the purpose of changing the critical frequency.
3, remove the critical excitation vibration.

Bearing meaning


ID Code: Under normal circumstances bearing diameter bearing inner code (the basic code of the last two digits) × 5 = internal diameter (mm), Example: 6204 bearing diameter is 04 × 5 = 20mm.
Common special cases:
(I) When the bearing diameter less than 20mm
Bearing diameter size (mm) 10 12 15 17
Corresponding inner code is 00010203
(Ii) When the bearing diameter less than 10mm, the direct use of the basic code of the last one represents the bearing bore size; Example: Bearing 608Z, with a basic code '608 'as the last one eight inner diameter, the inner diameter of the bearing 608Z 8mm. An inner diameter of 627 so 7mm, 634 an inner diameter of 4mm.
(Iii) the bearing bore is not a multiple of 5 is equal to or greater than 500mm, diameter code with a slash '/' character. Another situation: There are some old code needle Stainless steel slewing bearing  iameter code directly using the '/' character. These types of situations '/' behind several values ​​for the bearing bore size. Example below:
Bearing 619/1.5 62/22 60/5003519/11207943/25
Diameter size (mm) 1.5 22 500 1120 25
These are some of the common representation bearing bore, some of the international code of the company are not all the same; should to the actual situation. Specifically to refer to a variety of materials and samples of each manufacturer.
Size code: for expressing the same diameter but the diameter and width of the bearing, see Fig.
Diameter Code ↑
↑

Width Code
OD Series Code: special light (0,1), light (2), middle (3), weight (4)
Width series code: normal width to "0", usually not marked. But for tapered roller bearings (Class 7) and self-aligning roller bearings (3 classes) and other types can not omit the "0"
6010 is slim series, used in light load, high speed; 6210 series is a lightweight, light load speed most reasonable, is the application of the most extensive type; 6310 is the heavy series; 6410 series is re-used for heavy low. Medium and heavy duty most widely used, such as various types of mechanical transmission components, small motors, conveyor lines, motorcycles, etc. Almost all the machinery and equipment used in both types.
Type code: should be remembered that the commonly used bearing code: 3,5,6,7, N 5, corresponding to the old code 7,8,0,6,2 classes. .
Tolerance class code table:
Radial bearings and angular contact ball bearings are divided into five below (High → Low)
New level code P2 P4 P5 P6 P0
Old level code B C D E G
Tapered roller bearings are divided into four below (High → Low)
New level code P4 P5 P6x P0
Old level code C D Ex G (E)
Thrust ball bearings are divided into four below (High → Low)

2013年8月21日星期三

SKF lubrication systems Lincoln Industrial new members



      SKF China distributor in Sweden SKF Group global video conference that, SKF lubrication systems to expand the U.S. aftermarket and increased SKF company in North America and Asian markets and enhance market coverage SKF's production capacity, and determine its lubrication system increase in membership - Lincoln Industrial.

       SKF Crossed tapered roller bearing  distributor in China, according to introduction, SKF Group will be $ 1 billion cash acquisition is headquartered in St. Louis, Missouri, United States Lincoln Industrial lubrication system manufacturers, this new member of SKF lubrication systems Lincoln Industrial, the current SKF lubrication existing business has a high complementary value in the market area with SKF, technology development and production at the coincidence is very limited, especially in North America and Asia.

      The increase SKF include Lincoln (Lincoln), Arnie Mitt (Alemite) and Rui Technology (Reelcraft) all business entities and brands. SKF Company believes that the acquisition is completed to bring more and better sales channels and better operating efficiency, the company gained a great synergy. The acquisition will be earnings per share thickening of the company, the acquisition using the company's existing cash and credit tools. In addition, Lincoln also enable industry to get into the North American SKF lubrication tools and equipment aftermarket better channels.

      SKF China Office news that Lincoln Industrial currently has nearly 2,000 employees and 2010 revenues expected to sell $ 400 million, operating margin close to 24%. Lincoln Industrial is a world-class lubrication systems, lubrication tools and equipment supplier, has a consistently strong financial performance. Lincoln Industrial's three main product lines for the automatic lubrication system, reels and grease gun, focus on lubricating products. Sales come from the automatic lubrication systems and related products. The main target market is industrial machinery, energy, machinery, engineering machinery, mining machinery, agricultural machinery and steel.

    "We are very pleased that SKF acquired us, and look forward to the development of the SKF Group to make its own contribution to the development of Lincoln Industrial over the years are very good, strong growth, financial stability. Lincoln Industrial and existing SKF lubrication systems business and customer groups The combination will provide significant growth opportunities for the company to create greater value. "Lincoln Industrial, Chairman and CEO, Mr. Bart A Aitken SKF acquisition of new members in the Lincoln Industrial talked about.

      SKF's lubrication system is an important business, but also SKF's a technology platform. Acquisition of Lincoln Industrial, will work with the existing SKF Lubrication business combination, to provide customers with better solutions, and to lubricate business in the market to get better coverage. Lincoln Industrial for SKF's existing lubrication business layout has a very good complementary roles, with SKF Bearing company's existing products and markets only very limited overlap layout. SKF Group is pleased Lincoln Industrial soon will become a member of the SKF Group.

SKF solutions for racing system


     We know, organized by the FIA ​​Spanish Aragonese Zuera 2010 World Cup tournament champion team is Chiesa Corse racing team, there is SKF's irreplaceable credit, why do I say? Here SKF distributor in China to answer your questions.

        Chiesa Corse racing team designed and manufactured by the company SKF Cardin axle unit and cylindrical roller bearings engine solutions for Chiesa Corse racing team provides the best speed, rigidity and emergency response, and to ensure that the car high-speed rotation efficiency and long reliable service life, thus engine SKF Tapered bearing for high performance racing gives more adequate power, rigidity and reliability. Here are SKF bearings distributor in China's detailed report.

      SKF solutions for racing system, which is the unit of SKF's racing in karts Chiesa Corse racing team provides customized technology solutions, primarily for racing wheel bearing applications and engines were designed. The device uses the car dust cover unit that allows its bearings under race conditions convenient for cleaning lubrication, thus ensuring the efficiency of racing high-speed rotation, as well as long-term reliable service life.

      At the same time, SKF car unit of the car rear axle designed for reliable quality shaft mounting and rotating concentric with the real and the low friction ball locking device, thereby providing the best speed, rigidity and response. In addition, a high-performance engine bearings are also racing to give a more ample power, rigidity and reliability. Also located in this race means outer surface and patented groove profile SKF Group is designed to avoid this during the game supporting devices due to the risk of dislocation caused.

       The application of advanced products and technologies to provide customers with enhanced SKF fine professional solutions. SKF-based services industry over a hundred years of accumulated knowledge and experience, SKF has developed the products, technologies and services in various capacities; more important is that, depending on your business realities and specific needs, SKF solutions Factories have to do is apply this knowledge and ability and integrate our modular service designed to meet your requirements for the maintenance service solutions.