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Tapered roller bearings are separable into a cone assembly and a cup.
The non-separable cone assembly consists of the inner ring, the rollers, and a cage that retains & evenly spaces the rollers.
The cup is simply the outer ring. Internal clearance is established during mounting by the axial position of the cone relative to the cup, although preloaded installations without clearance are common.
Product Name: Tapered Roller Bearing 30206J
Material: Bearing Steel Gcr15/Chrome Steel Gcr15
Number of Row: Single Row
Size: 30x62x17.5mm
FOB Port: QINGDAO,CHINA
Payment : 100% T/T payment before shipping
Delivery Details:5-30 days
Brand: WXING or OEM
Features:
The inner and outer ring raceways are segments of cones and the rollers are tapered 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. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the OD of the rollers. This conical geometry creates a linear contact patch which permits greater loads to be carried than with spherical (ball) bearings, which have point contact. The geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs. The rollers are stabilized and restrained by a flange on the inner ring, against which their large end slides, which stops the rollers from popping out due to the "pumpkin seed effect" of their conical shape. The larger the half angles of these cones the larger the axial force that the bearing can sustain.
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 bearings where they must cope simultaneously with large vertical (radial) and horizontal (axial) forces. Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. Common real world applications are in agriculture, construction and mining equipment, sports robot combat, axle systems, gear box, engine motors and reducers, propeller shaft, railroad axle-box, differential, wind turbines, etc.
Specific classification and model comparison:
1. Single row tapered roller bearing (30000 type)
Note: It can withstand radial and axial loads mainly radial loads, large taper angle bearings can withstand radial and axial loads mainly axial loads, and generates additional axial forces under the action of radial loads. Therefore, it is generally arranged in pairs and can withstand radial loads. If used alone, the external axial force must be greater than the additional axial force. 313 series bearings have a large contact angle (27°-30°) and can withstand large axial loads. The contact angle of other series is 10°-18°.
2. Double row tapered roller bearing (350000 type)
Note: This bearing has an outer ring and two inner rings, and a spacer between the two inner rings. The clearance can be adjusted by changing the thickness of the spacer. It can bear radial load and bidirectional axial load at the same time, and can be within the range of bearing clearance. Bidirectional axial displacement of the shaft or housing is limited.
3. Four-row tapered roller bearing (330000 type)
Note: The bearing has a spacer ring for adjusting the clearance between the inner ring and the outer ring. The performance is basically the same as that of the double row tapered roller bearing. Wait.
The main application of tapered roller bearings: automobile front wheels, rear wheels, transmissions, differentials, pinion shafts, machine tool spindles, construction machinery, large agricultural machinery, railway vehicle gear reduction devices, rolling mill roll neck small reduction devices.
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