Standard double row Spherical roller bearing

Double row spherical roller bearings have double rows of rollers, one common spherical raceway on the outer ring, and two raceways on the inner ring that are tilted at an angle relative to the bearing axis. This ingenious structure enables it to have self-aligning performance, so it is not easily affected by the angle error between the shaft and the bearing box seat or the shaft bending, and is suitable for occasions where angle errors are caused by installation errors or shaft deflection. In addition to being able to withstand radial loads, this bearing can also withstand bidirectional axial loads.

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Характеристики

Standard: GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh,DIN / VDEh
Range of Inner Ring Dia.: 20mm-1800mm
Range of Outer Ring Dia.: 52mm-2180mm
Range of Weight: 0.2kg-4300kg
Material: 52100/100Cr6/SUJ2/20Cr2Ni4A
Brand: QIBR/OEM/Neutral
Package: QIBR/Standard Industrial Package/OEM
Applications: Crushers, screens, conveyor, rolling mills, continuous casting machines, Wind Turbines, cranes, forklifts, excavators, bulldozers, concrete mixers

Подбор моделей QIBR

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Подбор моделей QIBR
№	Модель продукта	Basic dynamic load rating	Basic static load rating	Inner diameter	Outer diameter	Total width	Weight
1	21305 CC	49.1 KN	41.5 KN	25 mm	62 mm	17 mm	0.28 kg
2	21306 CC	65.7 KN	61 KN	30 mm	72 mm	19 mm	0.41 kg
3	21307 CC	79.2 KN	72 KN	35 mm	80 mm	21 mm	0.55 kg
4	21308 E	107 KN	108 KN	40 mm	90 mm	23 mm	0.75 kg
5	21308 EK	107 KN	108 KN	40 mm	90 mm	23 mm	0.75 kg
6	21309 E	129 KN	127 KN	45 mm	100 mm	25 mm	0.99 kg
7	21309 EK	129 KN	127 KN	45 mm	100 mm	25 mm	0.99 kg
8	21310 E	159 KN	166 KN	50 mm	110 mm	27 mm	1.35 kg
9	21310 EK	159 KN	166 KN	50 mm	110 mm	27 mm	1.35 kg
10	21311 E	159 KN	166 KN	55 mm	120 mm	29 mm	1.7 kg
11	21311 EK	159 KN	166 KN	55 mm	120 mm	29 mm	1.7 kg
12	21312 E	217 KN	240 KN	60 mm	130 mm	31 mm	2.1 kg
13	21312 EK	217 KN	240 KN	60 mm	130 mm	31 mm	2.1 kg
14	21313 E	243 KN	270 KN	65 mm	140 mm	33 mm	2.55 kg
15	21313 EK	243 KN	270 KN	65 mm	140 mm	33 mm	2.55 kg
16	21314 E	291 KN	325 KN	70 mm	150 mm	35 mm	3.1 kg
17	21314 EK	291 KN	325 KN	70 mm	150 mm	35 mm	3.1 kg
18	21315 E	291 KN	325 KN	75 mm	160 mm	37 mm	3.75 kg
19	21315 EK	291 KN	325 KN	75 mm	160 mm	37 mm	3.75 kg
20	21316 E	331 KN	375 KN	80 mm	170 mm	39 mm	4.45 kg
21	21316 EK	331 KN	375 KN	80 mm	170 mm	39 mm	4.45 kg
22	21317 E	331 KN	375 KN	85 mm	180 mm	41 mm	5.2 kg
23	21317 EK	331 KN	375 KN	85 mm	180 mm	41 mm	5.2 kg
24	21318 E	393 KN	450 KN	90 mm	190 mm	43 mm	6.1 kg
25	21318 EK	393 KN	450 KN	90 mm	190 mm	43 mm	6.1 kg

Features and advantages of QIBR double-row standard spherical roller bearings

QIBR double-row standard spherical roller bearings solve multiple key problems in various fields, which are mainly reflected in the following aspects:

1. Self-aligning ability

The raceways of the inner and outer rings of the double-row spherical roller bearings are curved, and the bearings have the function of self-aligning, that is, they can automatically compensate for the angular deviation caused by the bending of the shaft or the installation error. Therefore, it can bear a certain axial load while bearing radial loads, and is particularly suitable for applications with low installation accuracy requirements.

2. Strong load-bearing capacity

The rollers of spherical roller bearings are cylindrical or slightly inclined, with a large contact surface, and can withstand large radial loads and bidirectional axial loads. Due to the large number of rollers, it has a higher load-bearing capacity, especially in high-load and high-impact application scenarios.

3. Suitable for harsh working conditions

This type of bearing is often used in harsh environments such as high temperature, high speed, and heavy load, and can operate reliably under harsh working conditions. Spherical roller bearings have strong adaptability and can adapt to large axial offsets and radial load changes.

4. Easy installation

Compared with other types of roller bearings, double-row spherical roller bearings can simplify installation requirements and reduce the risk of bearing failure due to installation errors due to their self-aligning function.

The performance improvement and solutions of QIBR double-row standard spherical roller bearing

1. Lubricant optimization

Select appropriate lubricating oil or grease, and make appropriate additions and blends to reduce friction and improve wear resistance. Using synthetic lubricants or nano-lubricants can significantly improve the efficiency and life of bearings.

2. Heat treatment process

Optimize the heat treatment process to ensure that the hardness and toughness of the bearing material are in the best state, and enhance its fatigue resistance and wear resistance.

3. Improve the quality of rolling elements

Reduce friction and wear by improving the surface finish and hardness of the rolling elements. Using high-precision rolling elements (such as ceramics) can significantly improve the operating performance of the bearing.

Подбор моделей QIBR

Features and advantages of QIBR double-row standard spherical roller bearings

QIBR double-row standard spherical roller bearings solve multiple key problems in various fields, which are mainly reflected in the following aspects:

1. Self-aligning ability

2. Strong load-bearing capacity

3. Suitable for harsh working conditions

4. Easy installation

The performance improvement and solutions of QIBR double-row standard spherical roller bearing

1. Lubricant optimization

2. Heat treatment process

Optimize the heat treatment process to ensure that the hardness and toughness of the bearing material are in the best state, and enhance its fatigue resistance and wear resistance.

3. Improve the quality of rolling elements

Standard double row Spherical roller bearing

Характеристики

Подбор моделей QIBR

Features and advantages of QIBR double-row standard spherical roller bearings

The performance improvement and solutions of QIBR double-row standard spherical roller bearing

Подбор моделей QIBR

Подбор моделей QIBR

Features and advantages of QIBR double-row standard spherical roller bearings

The performance improvement and solutions of QIBR double-row standard spherical roller bearing

Main application areas of QIBR double-row standard spherical roller bearings