Bearings double row Tapered roller 352128

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Product Description:

- Double row tapered roller bearings

Double row tapered roller bearings can only bear radial load at the same time it can be

subject to bi-directional load. It can be in bearing axial clearance range limit shaft or shell

two-way axial movement.




★Product features

The inner and outer ring raceways are segments of cones and the rollers are also made with a taper so that the conical surfaces of the

raceways and the roller axes if projected, would all meet at a common point on the main axis of the bearing. The rollers are guided by a

flange on the inner ring. This stops the rollers from sliding out at high speed due to their momentum. The larger the half angles of these

cones the larger the axial force that the bearing can sustain.


★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.

Pairs of tapered roller bearings are used in:

- car and vehicle wheel

- mining equipment

- moderate speed

- engine motors

- axle systems

- construction

- agriculture

- reducers

- gear box


★Horton tapered roller bearings Basic size

- Single row tapered roller bearings:

Inner ring size: 20mm ~ 1270mm Outer ring size: 40mm ~ 1460mm Width size: 15mm ~ 240mm

- Double row tapered roller bearings:

Inner ring size: 38mm ~ 1560mm Outer ring size: 70mm ~ 1800mm Width size: 50mm ~ 460mm

- Four row tapered roller bearings:

Inner ring size: 130mm ~ 1600mm Outer ring size: 200mm ~ 2000mm Width size: 510mm ~ 1150mm


★Tolerance:

Horton tapered roller bearing with common

tolerance, and also provides P6X, P6, P5, P4,


★Radial clearance

Horton single row tapered roller bearings only

in after installation have clearance, and in


★Cage

Tapered roller bearing general ues the steel plate stamping, basket shape cage, but when the size is bigger, we

also adopts entity cage.

1. Outside diameter D ≤ 650mm, use the steel plate stamping cage, cage postposition without code mark.

2. Outside diameter D > 650 mm, use the steel entity prop cage, cage postposition without code mark.


★Dynamic equivalent load

P = Fr [KN],     Fa / Fr ≤ e;

P = 0.4Fr + YFa [KN],    Fa / Fr > e.

The single row tapered roller bearings used in pairs (basic physical size can be different), when calculation  the

equivalent dynamic load of the bearing, must be included in the radial load cause additional axial force. The single

row tapered roller bearing additional axial force S, can approximate formula: S = Fr / 2y


★Static equivalent load

Single row tapered roller bearings 

P0 = 0.5Fr + Y0Fa [KN] P0 < Fr, then P0 = Fr

Double row tapered roller bearings 

P = 0Fr + Y1Fa [KN],Fa/Fre ≤e P = 0.67Fr + Y2Fa [KN],  Fa/Fre > e






 







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Q:What items should be inspected for tapered bearings?
1, the tapered roller bearing without cracks, sharp edges, plants and rust; on the road has not agreed to the raceway of machining trace; super fine traces in the outer ring, the steel ball surface should be symmetrical task differences, not to have scratches, bumps;
Q:Can tapered roller bearings be joined together with two single row tapered roller bearings instead of double row?The altar,
2, the clamping way is: double row bearing inner ring is double row, or outer ring double, determines when you install the inner ring or outer ring is clamped, clamped, if you want to replace with the two row, when combined with the clearance you need to consider the ring, you should adjust the clearance and is placed on the inner ring, or on the outside, too that depends on your way of clamping;
Q:How to judge the positive and negative sides of the tapered roller bearings,
When you remove the outer ring of the tapered roller bearing, you will see that the components of the inner ring cage are large and smallLook at the axial force you are using. The direction of the axial force in that direction is consistent with the direction of the small one,
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:What is the 30207 judgment coefficient e of tapered roller bearings?
Dynamic load C: 51.2 kNStatic load Co:56 kNWeight about kg:0.32KGIf you accept my answer, please accept it in good time,~ if you accept my answer, please click on the "please answer" button~ ~ mobile phone question friends in the upper right corner of the client evaluation point [satisfaction].
Q:Reasons for the damage of tapered roller bearings used on motors - -
This approach is somewhat similar to a tolerance control method invented by Timken (Timken) in 80s, and is suitable for mass production. But in this way, you have to control all the variables, or you'll probably have a problem with your bearings.
Q:The installation of tapered roller bearings
1, for example, a shaft needs to be fitted with two such bearings at both ends. Can it be installed in the same direction?The force of the shaft is concerned. If the shaft is indeed subjected to one-way axial force, of course, it can be installed in the same direction. If it is subjected to biaxial axial force, it will not work
Q:Method or tool for measuring clearance of tapered roller bearings.
You can measure the oil gap with a drop bar, that is, a soft drop ruler, which can be purchased without measuring the instrument of the bearing
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
Q:What is the size of tapered roller bearings 352214?
Bearing type: tapered roller bearingNew model: 352214Old model: 97514EInternal diameter (mm):70Outside diameter (mm):125Width (mm):75

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