32221 Tapered Roller Bearigs Single Row Bearing

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Product Description:

Specificatioin of Taperder Roller Bearings:



The tapered roller bearing is to bear the combination of radial and axial load but mainly afford radial load. The loading capibility is determined by the raceway angle of outer  ring, the larger angle afford larger load. This kind of bearings can be  seperated and it can be divided into single-row and double-row tapered roller  bearings by the number of columns. The clearance for single-row tapered roller  bearing should be adjusted by the customers when installation. For the  double-row tapered roller bearings,the clearance has already set by the  manufacture before ex-factory. Tapered roller bearing has taper shaped inner  ring and outer ring raceway,and the roller elements arrange between them. All  projection lines from the surface of rollers meet at the same point on bearing  axis. This design makes tapered roller bearings particular suitable for combined  (axial and radial) loads.The axial loading capacity is determined by the  contacting angle α, the bigger angle for α, the larger axial loading capacity  is. Tapered roller bearing is usually a seperated bearing, that is,the inner  ring assembly including roller and cages, is seperated installed with the cup.



Taper roller bearings are mainly used for radial and axial joint load with radial load as main subject. Axial load capacity relies on raceway angle of outer ring: the bigger the angle is, the bigger the bearing capacity is. Outer ring can be separated and can be easily assembled. During installing and using process, axial clearance and radial clearance and radial clearance can be adjusted and pre-interference installation can be allowed. 


            


Product application:

In many applications tapered roller bearings are used in back-to-back pairs so that axial forces can be supported equally in either direction.


- car and vehicle wheel

- mining equipment

- moderate speed

- engine motors

- axle systems    

- construction

- agriculture

- reducers

- gear box



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Q:Dimension parameter of thrust tapered roller bearing.
National standard GB 4663-1984, roller bearings, thrust cylindrical roller bearings, size, please check the mechanical design manual (Fifth Edition), second volumes --- commonly used rolling bearings, dimensions and performance parameters / thrust roller bearings.
Q:How to judge the positive and negative sides of the tapered roller bearings,
The installation of tapered roller bearings is not only to pay attention to the direction of installation, there are many other places to pay attention to, is a very professional technical activities
Q:Taper roller bearing limit speed 20
First of all, different types of tapered roller bearings, the limit speed is different. Bearing on catalog.Second, the calculation of bearing limit speed is calculated by computer simulation of bearing manufacturer. It is very complicated. Mainly based on frictional heat generation and cage strength limit.
Q:Tapered roller bearings, 70 in diameter, please tell me the model number
What about outside diameter (D) and width (B)? You didn't say?.Following are all series of codes and sizes for tapered roller bearings (single column and double row). I hope they can help.Single row tapered roller bearings (taken from GB/T 297-1994)Bearing code |30000: 32914 X2Basic size /mm|d: 70Basic dimensions /mm| D: 100Basic size /mm|T: 20Basic size /mm|B: 19Basic size /mm|C: 16Installation size /mm|da (min):-Installation size /mm|db (max):-Installation dimension /mm| Da (min):-Installation size /mm|Da (max):-Installation size /mm|Db (min):-Installation size /mm|a1 (min): 4Installation size /mm|a2 (min): 6Installation size /mm|ra (max): 1Installation size /mm|rb (max): 1The other is /mm|a size: 19Other sizes /mm|r (min): 1Other sizes /mm|r1 (min): 1The calculated coefficient is |e: 0.33The calculated coefficient is |Y: 1.8The calculated coefficient is |Y0: 1Basic rated load /kN|Cr: 53.2Basic rated load /kN|C0r: 85.5The speed limit / (r/min) | fat: 3600The speed limit / (r/min) | oil: 4500The weight is /kg|W:-
Q:Tapered roller bearing: Bearing expert why burned or locked
Shaft tolerance is relatively small and fine head, the inner shell inside and nose has obvious signs of friction. If there are traces of friction on one side or on both sides of the inner shell, there is an abnormal contact with the inner shell of the bearing and the friction of the inner shell of the bearing.2, the inner shell shell burning marks are not serious, roller black even deformation, generally is the inner shell or casing tolerance, Ambassador bearing gap smaller, and even negative tolerance caused by burning. Or in the maintenance of the bearing selection is not correct, you can use large clearance bearings.3, the shell burned seriously, the inner shell, roller are no obvious changes, you can observe whether the shell has traces of friction. There are traces of friction on the outside, and it can be considered that the tolerance between the bearing shell and the shaft is insufficient, which results in abnormal friction caused by the slipping of the housing. If there are traces of friction on one side or on both sides of the shell, there is an abnormal contact between the component relative to the bearing housing and the bearing housing, and the heat generated by friction will be burned out.
Q:Tapered roller bearings in this case, how to use? Ten
Why not such a large selection of axial thrust bearing, if the radial force selected contact angle greater than 45 degrees (thrust) tapered roller bearings or spherical roller bearings are good, ordinary radial cone bearing axial force mainly depends on the inner ring rib, movement and rib roller end surface contact of gyro rotation, life too effect of axial force, and excessive axial force will make rib fracture.
Q:Reasons for the damage of tapered roller bearings used on motors - -
But it is worth noting that you must control your parts tolerances, affect the tolerance of your variables clearance values are 11, 1 respectively -- bearing outer ring end face of large tolerances; 1 large end bearing inner ring outer ring end face 2 large tolerances; tolerances of bearings; 2 large end face of the inner face of tolerance between the two bearings, bearing; the small ring thickness tolerances; spacer ring tolerances; axial length tolerances; and two bearing diameter tolerances, and the corresponding axis tolerances (same axis but not at the same time processing is considered as two independent variables), consider the last four variables is because of you this application should be tightly matched with the inner ring, it will affect the clearance.
Q:How does the roller of tapered roller bearings fit in?
Tapered roller bearings itself can be broken down, and new (or old) bearings are cleaned and decomposed. So do not worry, carefully installed in accordance with the original installation order on the line, and if it does not meet the installation order, the installation of this bearing is not go on.
Q:The installation of tapered roller bearings
3, bearing ring roller contact surface is cone surface or cylindrical surface?Cone surface, in order to be able to bear both axial force and radial force
Q:There is a slot in the inner ring of tapered roller bearings, right? Is the roller in the slot?
Yes.AskIs there a gap between the roller and the slot when the roller is placed in the slot?Chasing the answerNo

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