Standard double row Spherical roller bearing

Image may differ from product. See technical specification for details.

Standard

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh,DIN / VDEh

Inner ring diameter

20mm-1800mm

Outer ring diameter

52mm-2180mm

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

Standard double row Spherical roller bearing

Filters

NO. Product Product Number Basic dynamic load rating Basic static load rating Inner diameter (d) Outer diameter (D) Overall width (B) Weight
801 231/750 231/750 CAK/W33 16518 KN 29000 KN 750 mm 1220 mm 365 mm 1700 kg
802 241/750 241/750 ECA/W33 20434 KN 37500 KN 750 mm 1220 mm 475 mm 2100 kg
803 241/750 241/750 ECAK30/W33 20434 KN 37500 KN 750 mm 1220 mm 475 mm 2100 kg
804 248/800 248/800 CAMA/W20 4780 KN 12900 KN 800 mm 980 mm 180 mm 300 kg
805 248/800 248/800 CAK30MA/W20 4780 KN 12900 KN 800 mm 980 mm 180 mm 300 kg
806 239/800 239/800 CA/W33 6595 KN 14300 KN 800 mm 1060 mm 195 mm 470 kg
807 239/800 239/800 CAK/W33 6595 KN 14300 KN 800 mm 1060 mm 195 mm 470 kg
808 249/800 249/800 CA/W33 8136 KN 19300 KN 800 mm 1060 mm 258 mm 640 kg
809 249/800 249/800 CAK30/W33 8136 KN 19300 KN 800 mm 1060 mm 258 mm 640 kg
810 230/800 230/800 CA/W33 10335 KN 20000 KN 800 mm 1150 mm 258 mm 895 kg
811 230/800 230/800 CAK/W33 10335 KN 20000 KN 800 mm 1150 mm 258 mm 895 kg
812 240/800 240/800 ECA/W33 13431 KN 28500 KN 800 mm 1150 mm 345 mm 1200 kg
813 240/800 240/800 ECAK30/W33 13431 KN 28500 KN 800 mm 1150 mm 345 mm 1200 kg
814 231/800 231/800 CA/W33 18033 KN 31500 KN 800 mm 1280 mm 375 mm 1920 kg
815 231/800 231/800 CAK/W33 18033 KN 31500 KN 800 mm 1280 mm 375 mm 1920 kg
816 241/800 241/800 ECA/W33 21587 KN 40500 KN 800 mm 1280 mm 475 mm 2300 kg
817 241/800 241/800 ECAK30/W33 21587 KN 40500 KN 800 mm 1280 mm 475 mm 2300 kg
818 232/800 232/800 CAF/W33 24973 KN 43000 KN 800 mm 1420 mm 488 mm 3280 kg
819 232/800 232/800 CAKF/W33 24973 KN 43000 KN 800 mm 1420 mm 488 mm 3280 kg
820 238/850 238/850 CAMA/W20 3882 KN 10000 KN 850 mm 1030 mm 136 mm 240 kg
821 238/850 238/850 CAKMA/W20 3882 KN 10000 KN 850 mm 1030 mm 136 mm 240 kg
822 239/850 239/850 CA/W33 7072 KN 15600 KN 850 mm 1120 mm 200 mm 560 kg
823 239/850 239/850 CAK/W33 7072 KN 15600 KN 850 mm 1120 mm 200 mm 560 kg
824 249/850 249/850 CA/W33 9390 KN 22800 KN 850 mm 1120 mm 272 mm 740 kg
825 249/850 249/850 CAK30/W33 9390 KN 22800 KN 850 mm 1120 mm 272 mm 740 kg
826 230/850 230/850 CA/W33 11291 KN 21600 KN 850 mm 1220 mm 272 mm 1050 kg
827 230/850 230/850 CAK/W33 11291 KN 21600 KN 850 mm 1220 mm 272 mm 1050 kg
828 240/850 240/850 ECA/W33 15183 KN 31500 KN 850 mm 1220 mm 365 mm 1410 kg
829 240/850 240/850 ECAK30/W33 15183 KN 31500 KN 850 mm 1220 mm 365 mm 1410 kg
830 241/850 241/850 ECAF/W33 23827 KN 45000 KN 850 mm 1360 mm 500 mm 2770 kg
831 241/850 241/850 ECAK30F/W33 23827 KN 45000 KN 850 mm 1360 mm 500 mm 2770 kg
832 232/850 232/850 CAF/W33 27636 KN 48000 KN 850 mm 1500 mm 515 mm 3940 kg
833 248/900 248/900 CAMA/W20 5428 KN 15300 KN 900 mm 1090 mm 190 mm 370 kg
834 248/900 248/900 CAK30MA/W20 5428 KN 15300 KN 900 mm 1090 mm 190 mm 370 kg
835 239/900 239/900 CA/W33 7652 KN 17000 KN 900 mm 1180 mm 206 mm 605 kg
836 239/900 239/900 CAK/W33 7652 KN 17000 KN 900 mm 1180 mm 206 mm 605 kg
837 230/900 230/900 CA/W33 12002 KN 23200 KN 900 mm 1280 mm 280 mm 1200 kg
838 230/900 230/900 CAK/W33 12002 KN 23200 KN 900 mm 1280 mm 280 mm 1200 kg
839 240/900 240/900 ECA/W33 16185 KN 34500 KN 900 mm 1280 mm 375 mm 1570 kg
840 240/900 240/900 ECAK30/W33 16185 KN 34500 KN 900 mm 1280 mm 375 mm 1570 kg
841 241/900 241/900 ECAF/W33 25310 KN 49000 KN 900 mm 1420 mm 515 mm 3350 kg
842 241/900 241/900 ECAK30F/W33 25310 KN 49000 KN 900 mm 1420 mm 515 mm 3350 kg
843 239/950 239/950 CA/W33 8606 KN 19600 KN 950 mm 1250 mm 224 mm 755 kg
844 239/950 239/950 CAK/W33 8606 KN 19600 KN 950 mm 1250 mm 224 mm 755 kg
845 249/950 249/950 CA/W33 10701 KN 26000 KN 950 mm 1250 mm 300 mm 1020 kg
846 249/950 249/950 CAK30/W33 10701 KN 26000 KN 950 mm 1250 mm 300 mm 1020 kg
847 230/950 230/950 CA/W33 14363 KN 28500 KN 950 mm 1360 mm 300 mm 1450 kg
848 230/950 230/950 CAK/W33 14363 KN 28500 KN 950 mm 1360 mm 300 mm 1450 kg
849 240/950 240/950 CAF/W33 17847 KN 39000 KN 950 mm 1360 mm 412 mm 1990 kg
850 240/950 240/950 CAK30F/W33 17847 KN 39000 KN 950 mm 1360 mm 412 mm 1990 kg
851 241/950 241/950 ECAF/W33 27892 KN 55000 KN 950 mm 1500 mm 545 mm 3540 kg
852 241/950 241/950 ECAK30F/W33 27892 KN 55000 KN 950 mm 1500 mm 545 mm 3540 kg
853 238/1000 238/1000 CAMA/W20 5405 KN 14300 KN 1000 mm 1220 mm 165 mm 410 kg
854 238/1000 238/1000 CAKMA/W20 5405 KN 14300 KN 1000 mm 1220 mm 165 mm 410 kg
855 249/1000 249/1000 CA/W33 11939 KN 29000 KN 1000 mm 1320 mm 315 mm 1200 kg
856 249/1000 249/1000 CAK30/W33 11939 KN 29000 KN 1000 mm 1320 mm 315 mm 1200 kg
857 240/1000 240/1000 CAF/W33 18592 KN 40500 KN 1000 mm 1420 mm 412 mm 2140 kg
858 240/1000 240/1000 CAK30F/W33 18592 KN 40500 KN 1000 mm 1420 mm 412 mm 2140 kg
859 231/1000 231/1000 CAF/W33 25650 KN 48000 KN 1000 mm 1580 mm 462 mm 3500 kg
860 231/1000 231/1000 CAKF/W33 25650 KN 48000 KN 1000 mm 1580 mm 462 mm 3500 kg
861 241/1000 241/1000 ECAF/W33 31174 KN 62000 KN 1000 mm 1580 mm 580 mm 4300 kg
862 241/1000 241/1000 ECAK30F/W33 31174 KN 62000 KN 1000 mm 1580 mm 580 mm 4300 kg
863 238/1060 238/1060 CAMA/W20 5555 KN 15000 KN 1060 mm 1280 mm 165 mm 435 kg
864 239/1060 239/1060 CAF/W33 11333 KN 26000 KN 1060 mm 1400 mm 250 mm 1100 kg
865 239/1060 239/1060 CAKF/W33 11333 KN 26000 KN 1060 mm 1400 mm 250 mm 1100 kg
866 249/1060 249/1060 CAF/W33 13354 KN 32500 KN 1060 mm 1400 mm 335 mm 1400 kg
867 249/1060 249/1060 CAK30F/W33 13354 KN 32500 KN 1060 mm 1400 mm 335 mm 1400 kg
868 240/1060 240/1060 CAF/W33 20724 KN 45500 KN 1060 mm 1500 mm 438 mm 2520 kg
869 240/1060 240/1060 CAK30F/W33 20724 KN 45500 KN 1060 mm 1500 mm 438 mm 2520 kg
870 249/1120 249/1120 CAF/W33 13718 KN 34500 KN 1120 mm 1460 mm 335 mm 1500 kg
871 249/1120 249/1120 CAK30F/W33 13718 KN 34500 KN 1120 mm 1460 mm 335 mm 1500 kg
872 240/1120 240/1120 CAF/W33 22364 KN 50000 KN 1120 mm 1580 mm 462 mm 2930 kg
873 240/1120 240/1120 CAK30F/W33 22364 KN 50000 KN 1120 mm 1580 mm 462 mm 2930 kg
874 238/1180 238/1180 CAFA/W20 6778 KN 18600 KN 1180 mm 1420 mm 180 mm 575 kg
875 238/1180 238/1180 CAKFA/W20 6778 KN 18600 KN 1180 mm 1420 mm 180 mm 575 kg
876 239/1180 239/1180 CAF/W33 13076 KN 31000 KN 1180 mm 1540 mm 272 mm 1400 kg
877 239/1180 239/1180 CAKF/W33 13076 KN 31000 KN 1180 mm 1540 mm 272 mm 1400 kg
878 249/1180 249/1180 CAF/W33 15751 KN 40500 KN 1180 mm 1540 mm 355 mm 1800 kg
879 249/1180 249/1180 CAK30F/W33 15751 KN 40500 KN 1180 mm 1540 mm 355 mm 1800 kg
880 240/1180 240/1180 CAF/W33 25471 KN 58500 KN 1180 mm 1660 mm 475 mm 3320 kg
881 240/1180 240/1180 CAK30F/W33 25471 KN 58500 KN 1180 mm 1660 mm 475 mm 3320 kg
882 230/1250 230/1250 CAF/W33 21256 KN 45000 KN 1250 mm 1750 mm 375 mm 2840 kg
883 230/1250 230/1250 CAKF/W33 21256 KN 45000 KN 1250 mm 1750 mm 375 mm 2840 kg
884 249/1320 249/1320 CAF/W33 18714 KN 49000 KN 1320 mm 1720 mm 400 mm 2500 kg
885 249/1320 249/1320 CAK30F/W33 18714 KN 49000 KN 1320 mm 1720 mm 400 mm 2500 kg
886 248/1500 248/1500 CAFA/W20 14684 KN 45000 KN 1500 mm 1820 mm 315 mm 1710 kg
887 248/1500 248/1500 CAK30FA/W20 14684 KN 45000 KN 1500 mm 1820 mm 315 mm 1710 kg
888 248/1800 248/1800 CAFA/W20 20274 KN 63000 KN 1800 mm 2180 mm 375 mm 2900 kg
889 248/1800 248/1800 CAK30FA/W20 20274 KN 63000 KN 1800 mm 2180 mm 375 mm 2900 kg
890 240/560 240/560 BC 7530 KN 14000 KN 560 mm 820 mm 258 mm 445 kg
891 240/600 240/600 BC 8502 KN 16300 KN 600 mm 870 mm 272 mm 519 kg
892 240/630 240/630 BC 9307 KN 17600 KN 630 mm 920 mm 290 mm 623 kg
893 240/710 240/710 BC 11166 KN 22000 KN 710 mm 1030 mm 315 mm 843 kg
894 240/750 240/750 BC 12309 KN 24500 KN 750 mm 1090 mm 335 mm 1010 kg
895 240/800 240/800 BC 13447 KN 27500 KN 800 mm 1150 mm 345 mm 1140 kg
896 240/850 240/850 BC 15078 KN 31000 KN 850 mm 1220 mm 365 mm 1360 kg
897 240/900 240/900 BC 16215 KN 34000 KN 900 mm 1280 mm 375 mm 1520 kg
898 24192 24192 ECAK30/W33 8608 KN 14600 KN 460 mm 760 mm 300 mm 560 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.

4. Cage design optimization

Use a more optimized cage structure, such as using high-temperature and corrosion-resistant materials and designs to improve the durability of the cage and the stability of the bearing.


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

1.Mining machinery

Such as crushers, conveyors, ball mills and other equipment, due to their harsh working environment and heavy loads, double-row spherical roller bearings can provide high load bearing capacity and avoid failures caused by installation errors.

2.Metallurgical equipment

Such as rolling mill equipment and roller tables in steel plants, double-row spherical roller bearings can effectively withstand heavy loads and impacts generated in metallurgical production.

3.Hydropower generator sets

Bearings of large power equipment such as turbines and generators. Since power equipment needs to bear a large amount of load and long-term operation, double-row spherical roller bearings have good self-alignment and are suitable for this type of equipment.

4.Shipbuilding industry

Double-row spherical roller bearings are often used in key parts of ships due to their excellent load-bearing capacity and durability in the rudder shaft, transmission shaft and other parts of ships.