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Bearing Steel Bearing > Bearing Steel Bearing > Angular Contact Ball Bearing > Magneto Bearing E12
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Magneto Bearing E12
商品编号:110008012
原价:$1.28降价通知
规格型号:E12
库存:1400 件
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产品参数

商品编号: 110008012 品牌: NETMALL
产品类别: Angular Contact Ball Bearing 产品重量:(g) 18.00
轴承型号: E12 产品颜色: Natural color
等同其它型号: 使用特性:
外形尺寸-内径d:(mm) 12 外形尺寸-外径D:(mm) 32
外形尺寸-宽度B:(mm) 外形尺寸-内圈高度:(mm) 7
外形尺寸-外圈高度:(mm) 7 轴承材料-轴承外圈材料: GCr15
振动等级: 轴承材料-轴承内圈材料: GCr15
滚道类型: Grease 轴承材料-滚动体材料: GCr15
密封方式: 轴承材料-保持架材料: GRPA66-25
轴承精度等级: P0 轴承材料-密封件材料:
内部游隙: C0 基本额定载荷-动载荷:(KN) 450KN
润滑剂类型: 天津汉沽 2号 基本额定载荷-静载荷:(KN) 86KN
极限转速-脂润滑:(r/min) 极限转速-油润滑:(r/min)

产品特性

High speed, vibration, good lubricating properties, mainly bear radial load, but also can withstand a certain amount of axial load.

应用领域

Magneto bearing

商品详情

Automobile generator bearings single row angular contact ball bearing structure as the main form , with the exception of angular contact ball bearings features, the clearance, grease , cage guided mode , speed and other aspects of resistance , superior general of the angular contact ball bearings. The mall generator angle contact ball bearings , in strict accordance with the actual requirements of manufacturing, testing, quality trustworthy.

Angular contact ball bearing is a bearing that can support radial and axial loads . To work at high speed. The contact angle , the higher the axial load carrying capacity. High-precision and high-speed bearings usually take the contact angle of 15 degrees . In the axial force, the contact angle will increase.

Angular contact ball bearings can support radial and axial loads . To work at high speed. The contact angle , the higher the axial load carrying capacity. High-precision and high-speed bearings usually take the contact angle of 15 degrees . In the axial force, the contact angle will increase. Single row angular contact ball bearings can withstand axial load in one direction , while the radial load , will cause additional axial force. And only limited axial displacement in one direction or housing . If paired installation , make a pair of bearing outer ring relative to that wide side face of wide and narrow side facing the narrow end . This can avoid additional axial force , and the shaft or housing to limit axial clearance within the range in both directions.

Because of the angular contact ball bearings , the outer ring raceway relative displacement on the horizontal axis , so it can support radial load and axial load - combined load ( single row angular contact ball bearings can withstand axial one direction load , so often adopted in pairs ) .

Cage made ​​of brass , synthetic resins , GRPA66-25 , etc. , depending on bearing features and application conditions.

Angular contact ball bearings: 7000C -type (α = 15 °), 7000AC type (α = 25 °) and 7000B (α = 40 °) of several types. This kind of bearing outer ring locking in general can not be separated from the inner and outer rings can withstand radial and axial joint load and axial load in one direction. Axial load capacity of the decision by the contact angle , the contact angle is large , the ability to withstand high axial loads. This kind of bearing can limit the axial displacement in one direction shaft or housing .

The main purpose of angular contact ball bearings

Single row angular contact ball bearings: machine tool spindles , high frequency motors, gas turbines , centrifuges, small car front wheel , differential pinion shaft

Double row angular contact ball bearings: pump, blower , air compressor , various types of transmission, fuel injection pumps , printing machinery

Speed ​​angular contact ball bearing installation tips

High-speed precision angular contact ball bearings , mainly for high-speed rotation of occasions lighter loads , requiring high precision bearings , high speed, low vibration and low temperature rise some life. Often high-speed spindle bearing installed in pairs , the inner surface grinder spindle speed key component parts .

High-speed precision angular contact ball bearings are mainly technical indicators

A bearing accuracy specifications : Over GB/307.1-94 P4 level precision

2 high-speed performance indicators :. DmN value 1.3 ~ 1.8x 106 / min

(3) life ( average ):> 1500 h

High-speed precision angular contact ball bearings and maintenance

High-speed precision angular contact ball bearing life and a great relationship is installed , you should note the following:

1 . Bearing installation should be in the clean , clean room , bearing should carefully matching, bearing spacers to go through the grind , while maintaining the contour of the inner and outer ring spacers premise spacer should be controlled in parallel 1um the following ;

2 bearings should be cleaned before installing clean, cleaning the inner slope upward , feel should be flexible , no sense of stagnation , dry , placed in a predetermined amount of grease, oil mist lubrication should be placed in the case of a small amount of oil mist ;

3 bearing installation tool should be used exclusively , even by force , is strictly prohibited beat ;

4 bearing store should be clean and ventilated , non-corrosive gases, relative humidity less than 65% , long-term storage should be regularly rust.

Maintenance 1 , when the bearing to run to a certain period of time ( or warranty maintenance support period ) , will be bearing all removed ;

2 , cleaning diesel or kerosene soaked with cleaning bearings, the best technical conditions , if any, the sealed cover cleaning ;

3 , air dry after cleaning cleaning oil , visual inspection for damage ;

4, with about a 150mm, angular contact ball bearings diameter equal to the inner diameter of the stick ( preferably a hollow tube ) , one end fixed to a bearing ;

5 , the rapid rotation of the hand , while bearing the stick ( woodwind ) and the other end on top of the handset or in an audio amplifier to the ear hearing debate bearing rotation noise ;

6 , horizontal toggle the fixed bearing sticks , check bearing wear loose ;

7 , loosening serious , turn the noise is too large, there is a serious defect FAG Bearings should be eliminated, replaced with the same model ;

8 , take a bucket of the amount of grease ( high-quality yellow dry oil ) with gentle heat to melt (no overheating ) , will detect over- bearing into the bucket to soak no bubbles overflow. Bearing grease to cool before removing residual grease less. After cooling to remove grease angular contact ball bearings , grease residue quantity . Determine how much residual amount of grease required.

9 , wipe with a soft cloth or tissue paper bearing grease out of the bearing assembly onto the pulley An undisturbed , maintenance work is completed.

Angular contact ball bearing accuracy class

Angular contact ball bearings include dimensional tolerances and accuracy class rotation accuracy . From low to high precision expressed as P0 ( general ), P6 (P6X), P5, P4, P2. In addition, European and American brands also used P3, P7, P9 , said precision grade , P3 equivalent to ISO and JIS standards P6 level , P7 level equivalent to P4 , P9 is equivalent to P2 level .

Angular contact ball bearing high speed limit , can support radial load and axial load can also be subject to pure axial load, axial load capacity by the contact angle and the contact angle increases with the increase .

Single row angular contact ball bearings can withstand axial load in one direction , when the radial load , will cause additional axial force must be applied to the corresponding reverse load, therefore , the kinds of bearings are generally used in pairs. Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment loads, it can limit the bi-axial displacement of shaft or housing , the contact angle of 30 degrees.

Paired angular contact ball bearings

Paired angular contact ball bearings can bear radial load mainly radial and axial combined load can also be subject to pure radial loads. Tandem configuration can only bear axial load in one direction , the other two configurations can withstand axial load in either direction . This type of bearing manufacturers generally matching pairs of user submitted after installation preload interference, rings and balls in the axial pre-load condition , thereby enhancing the entire group as a single bearing support stiffness and rotational accuracy.

Back to back configuration, the post code for the DB ( eg 70000/DB), back to back pair of separate lines bearing load to the bearing axis. Can withstand the effect of axial load in both directions , but the load in each direction only by one bearing . Back to back mounted bearings provide a relatively high rigidity of the bearing arrangement , and can withstand the overturning moment.

Face configuration, the post code for the DF ( eg 70000/DF), paired face bearing load lines converge towards the bearing axis. Can withstand the effect of axial load in both directions , but the load in each direction only by one bearing . This configuration is not as good as back to back pairing of high rigidity, and is not suitable to withstand the overturning moment . This configuration rigidity and affordability overturning moment is not as DB configurations, bearings can withstand axial load ;

Series configuration , post code for DT ( eg 70000/DT), when arranged in series , parallel to the load line , radial and axial loads evenly shared by the bearings . However, acting on the bearing set can only bear axial load in one direction . If the axial load in the opposite direction , or if there is a composite load must be increased relative to a series pair of third bearing bearing adjustment . This configuration can also be a series of three or more bearings supporting the same place, but only axial loads in one direction . Typically , in order to balance the shaft and limit axial displacement of the other bearing in the other direction to be installed to withstand the axial load bearing .

For the following pair of bearing load capacity , and the products given in the table only the basic rated load and fatigue load limit applies only to a single bearing .

* The basic dynamic load rating for standard bearings and back to back or face any configuration bearing configuration

C = 1,62 xC single bearing

* The basic dynamic load rating for the series configuration of bearings

C = 2xC single bearing

* Load Rating

Co = 2xCo single bearing

* Fatigue limit load

Pu = 2xPu single bearing

Double row angular contact ball bearing deformation structure

Double row angular contact ball bearings are characterized by joint load can withstand radial and axial loads , limiting both the axial displacement of the shaft . Compared with the two-way thrust ball bearings, these bearings high speed limit , the contact angle of 32 degrees, rigid , and can withstand the overturning moment , widely used in cars in the front wheel hub ( some models also use the same size double row tapered roller bearings ) .

Double row angular contact ball bearing deformation structure there are four:

Type A: 90mm outside diameter less than or equal to the standard design of the bearing. No ball gap , so they can withstand the equivalent two-way axial load. Using GRPA66-25 glass fiber , bearing temperature rise is small.

Type B: 90mm diameter greater than the standard design of the bearing. Side of the ball gap , with a pressed steel cage or solid brass cage .

Type E : is to strengthen the structure, the side with filling slots , can hold more of the ball, so a higher carrying capacity.

Both sides with a dust cover and sides with a ring -type type , A-type and E-type design designed double row angular contact ball bearings with dust cover can be both sides of the ( non-contact ) or seal ( contact ) . Sealed bearings are filled with lithium grease rust , generally between -30 degrees to 110 degrees operating temperature. Without re-lubrication during use , no heating before installation .

When double row angular contact ball bearings installed should be noted that although the bearings can withstand axial load, but if one side of the ball gap , you should be careful not to let the main axial load through the notched side of the gutter .