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Hot Sales Low frictional resistance oil lubrication 30204 taper roller bearing
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Meorient Import & Export Co.LTD
China - Hangzhou
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Hangzhou,Shanghai
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5-10人
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45 Day(s)
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--Product Description
Product Description
Introduction to tapered roller bearings
Tapered roller bearings are separate bearings. Both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into single, double and four-row tapered roller bearings according to the number of rollers installed. Single-row tapered roller bearings can support radial loads and axial loads in one direction. When the bearing is subjected to a radial load, an axial component will be generated, so when another bearing that can withstand the axial force in the opposite direction is needed to balance it.
Advantage
1. Able to Carry High Loads
2. With a High Load-Bearing Capacity
3. Low Noise and More Quiet
4. Long Life,Stable Performance and Durable
5. Have Low Rolling Resistance and Work in Sub-Zero Temperatures
Structural characteristics of tapered roller bearing
The type code of tapered roller bearings is 30,000, and tapered roller bearings are separable bearings. In general, especially in the dimensions covered by GB / T307.1-94 "Tolerances for rolling bearings, radial bearings", the outer ring and inner components of tapered roller bearings are 100% interchangeable.
The angle of the outer ring and the diameter of the outer raceway have been standardized as the same as the outer dimensions. No changes are allowed during design and manufacture. So that the outer ring and the inner components of the tapered roller bearing can be universally interchanged worldwide.
Tapered roller bearings are mainly used to support the combined radial and axial loads, mainly radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limiting speed is low. Tapered roller bearings can withstand axial loads in one direction and can limit axial displacement of the shaft or housing in one direction.
Product Name | 30204 taper roller bearing |
Type | taper roller bearing |
Material | Chrome Steel |
Characteristic | Easy to replace and install, well sealed, suitable for high dust environment, multiple fixing methods are optional, and multiple designs are used. |
Delivery time | 5-7 days，Related by order quantity |
Application | Stacker and reclaimer, conveyor, pump and other equipment |
Uses of tapered roller bearings
Tapered roller bearings mainly bear radial and axial combined loads. Bearing bearing capacity depends on the raceway angle of the outer ring.
The larger the carrying capacity. This type of bearing is a separate bearing, which is divided into single, double and four-row tapered roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single-row tapered roller bearings needs to be adjusted by the user during installation; the clearances of double-row and four-row tapered roller bearings have been given according to user requirements when the product leaves the factory, and do not need to be adjusted by the user.
Tapered roller bearings have tapered inner and outer ring raceways with tapered rollers arranged between them. The projection lines of all conical surfaces converge at the same point on the bearing axis. This design makes tapered roller bearings particularly suitable for bearing combined (radial and axial) loads. The axial load capacity of a bearing is mostly determined by the contact angle α; the larger the angle α, the higher the axial load capacity. The angle is represented by the calculation coefficient e; the larger the value of e, the larger the contact angle, and the greater the applicability of the bearing to the axial load.
Tapered roller bearings are usually separated, that is, a tapered inner ring assembly composed of an inner ring with a roller and a cage assembly can be installed separately from the tapered outer ring (outer ring).
Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries。
387A /382S taper roller bearing
- * Production processes
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Installation of tapered roller bearings
Adjusting the axial clearance For the installation of tapered roller bearings, the axial clearance can be adjusted by adjusting nuts on the journal, adjusting washers and the threads in the bearing housing holes, or by using pre-tensioned springs and other methods. The size of the axial clearance is related to the arrangement of the bearing, the distance between the bearings, and the material of the shaft and the bearing seat, which can be determined according to the working conditions.
For tapered roller bearings with high load and high speed, when adjusting the clearance, the effect of temperature rise on the axial clearance must be considered, and the amount of clearance reduction caused by temperature rise must be taken into account, that is, the axial clearance Make it bigger.
For bearings with low speed and vibration, it should be installed without clearance or installed with preload. The purpose is to make the roller and the raceway of the tapered roller bearing have good contact, and the load is evenly distributed to prevent the roller and the raceway from being damaged by vibration. After adjustment, the amount of axial clearance is checked with a dial indicator.
Installation of four-row tapered roller bearings (installing roller bearings):
The fit between the inner ring of the four-row tapered roller bearing and the roll neck is generally with a gap. When installing, first load the bearing into the bearing box, and then load the bearing box into the journal.
The outer ring of the two or four-row tapered roller bearing and the bearing box hole also adopt a dynamic fit, and the outer ring A is first installed into the bearing box. outer ring, the inner ring and the inner and outer spacers when leaving the factory. During installation, the bearing box must be installed in the order of the character symbols. Not interchangeable to prevent changes in bearing clearance.
3. After all the parts are installed in the bearing box, the inner ring and the inner spa
This is a photo of our participation in the exhibition and the visit of the customer to the factory. Our employees took part in
the hiking meeting and climbed the mountain to do volunteer photos.
the hiking meeting and climbed the mountain to do volunteer photos.
Related Products
Classification of tapered rollers
The single-row tapered roller bearing has an outer ring, an inner ring and a set of tapered rollers, an inner ring assembly formed by a basket-shaped cage. The outer ring can be separated from the inner ring component. According to the ISO standard for external dimensions of tapered roller bearings, the outer ring or inner ring component of any standard tapered roller bearing should be able to achieve internationality with the outer ring or inner ring component of the same model. exchange. That is to say, in addition to the outer dimensions and tolerances of the same type of outer ring must comply with ISO492 (GB307) regulations, the cone angle and cone diameter of the inner ring components must also meet the relevant regulations for interchange.
Generally, the tapered angle of the outer ring raceway of a single-row tapered roller bearing is between 10 ° and 19 °, which can simultaneously bear the combined action of axial load and radial load. The larger the cone angle, the greater the ability to withstand axial loads. Bearings with a large tapered angle, with a post code plus B, with a tapered angle between 25 ° and 29 °, can withstand large axial loads. In addition, the single-row tapered roller bearing can adjust the clearance during the installation process.
The outer ring (or inner ring) of a double-row tapered roller bearing is a whole. The two small inner end faces of the inner ring (or outer ring) are close to each other, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre-interference of the double-row tapered roller bearing.
Four-row tapered roller bearings, the performance of this bearing is basically the same as double-row tapered roller bearings, but the radial load is greater than double-row tapered roller bearings, the limit speed is slightly lower, mainly used in heavy machinery.
Multi-sealed double and four-row tapered roller bearings, ZWZ provide
Detailed Images
During the customer's order production process, we carry out processing inspection, the purpose is to do better quality control Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine PET Bottle Making Machine is suitable for
producing PET plastic containers and bottles in all shapes.
producing PET plastic containers and bottles in all shapes.
Packing&Shipping
Semi-Automatic PET Bottle Blowing Machine Bottle Making Machine Bottle Moulding Machine
PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.
Company Introduction
Sheng Yao Wang (Dalian) International Trade Co., LTD. has been focusing business of bearing production and trade for 17 years, has rich experiences in bearing processing and trade, to provide clients with professional bearing application solutions. The companyprovides the customized products and OEM service. Various new collections and design are coming out each month with the currentstyles and fabrics. The factory own the proficient skill and updated machine
The customer evaluation
We are very happy that the customer can give us high praise, we continue to serve the customer satisfaction for the purpose
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