High-capacity cylindrical roller bearings

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Standard

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

Material

GCr15

Inner ring diameter

100-180mm

Outer ring diameter

240-440mm

Weight

5.1-143kg

Brand

QIBR/OEM/Neutral

Package

QIBR/Standard Industrial Package/OEM

Applications

Large and medium-sized electric motors, Locomotive vehicles, Machine tool spindles, Internal combustion engines, Generators, Gas turbines, Gearboxes, Rolling mills, Vibrating screens, lifting and transportation machinery, etc.

Filters

NO. Product Product Number Basic dynamic load rating Basic static load rating Inner diameter (d) Outer diameter (D) Width (B)
1 NUH NUH 2220 ECMH 400 KN 475 KN 100 mm 180 mm 46 mm
2 NUH NUH 2320 ECMH 710 KN 800 KN 100 mm 215 mm 73 mm
3 NUH NUH 2222 ECMH 465 KN 550 KN 110 mm 200 mm 53 mm
4 NUH NUH 2322 ECMH 830 KN 965 KN 110 mm 240 mm 80 mm
5 NUH NUH 2224 ECMH 550 KN 670 KN 120 mm 215 mm 58 mm
6 NUH NUH 2324 ECMH 965 KN 1120 KN 120 mm 260 mm 86 mm
7 NUH NUH 2226 ECMH 630 KN 780 KN 130 mm 230 mm 64 mm
8 NUH NUH 2326 ECMH 1120 KN 1340 KN 130 mm 280 mm 93 mm
9 NCF NCF 2326 ECJB 1120 KN 1340 KN 130 mm 280 mm 93 mm
10 NUH NUH 2228 ECMH 680 KN 880 KN 140 mm 250 mm 68 mm
11 NCF NCF 2228 ECJB 680 KN 880 KN 140 mm 250 mm 68 mm
12 NUH NUH 2328 ECMH 1250 KN 1530 KN 140 mm 300 mm 102 mm
13 NCF NCF 2328 ECJB 1250 KN 1530 KN 140 mm 300 mm 102 mm
14 NUH NUH 2230 ECMH 780 KN 1040 KN 150 mm 270 mm 73 mm
15 NCF NCF 2230 ECJB 780 KN 1040 KN 150 mm 270 mm 73 mm
16 NUH NUH 2330 ECMH 1430 KN 1760 KN 150 mm 320 mm 108 mm
17 NCF NCF 2330 ECJB 1430 KN 1760 KN 150 mm 320 mm 108 mm
18 NUH NUH 2232 ECMH 980 KN 1270 KN 160 mm 290 mm 80 mm
19 NCF NCF 2232 ECJB 980 KN 1270 KN 160 mm 290 mm 80 mm
20 NUH NUH 2332 ECMH 1400 KN 2000 KN 160 mm 340 mm 114 mm
21 NCF NCF 2332 ECJB 1400 KN 2000 KN 160 mm 340 mm 114 mm
22 NCF NCF 2332 ECJB/PEX 1400 KN 2000 KN 160 mm 340 mm 114 mm
23 NUH NUH 2332 ECMH/PEX 1400 KN 2000 KN 160 mm 340 mm 114 mm
24 NUH NUH 2234 ECMH 1600 KN 1530 KN 170 mm 310 mm 86 mm
25 NCF NCF 2234 ECJB 1160 KN 1530 KN 170 mm 310 mm 86 mm
26 NUH NUH 2334 ECMH 1540 KN 2200 KN 170 mm 360 mm 120 mm
27 NCF NCF 2334 ECJB 1540 KN 2200 KN 170 mm 360 mm 120 mm
28 NCF NCF 2334 ECJB/PEX 1760 KN 2200 KN 170 mm 360 mm 120 mm
29 NUH NUH 2334 ECMH/PEX 1760 KN 2200 KN 170 mm 360 mm 120 mm
30 NUH NUH 2236 ECMH 1200 KN 1600 KN 180 mm 320 mm 86 mm
31 NCF NCF 2236 ECJB 1200 KN 1600 KN 180 mm 320 mm 86 mm
32 NUH NUH 2336 ECMH 1720 KN 2400 KN 180 mm 380 mm 126 mm
33 NCF NCF 2336 ECJB 1720 KN 2400 KN 180 mm 380 mm 126 mm
34 NCF NCF 2336 ECJB/PEX 1960 KN 2400 KN 180 mm 380 mm 126 mm
35 NUH NUH 2336 ECMH/PEX 1960 KN 2400 KN 180 mm 380 mm 126 mm
36 NUH NUH 2238 ECMH 1320 KN 1760 KN 190 mm 340 mm 92 mm
37 NCF NCF 2238 ECJB 1320 KN 1760 KN 190 mm 340 mm 92 mm
38 NUH NUH 2338 ECMH 1940 KN 2750 KN 190 mm 400 mm 132 mm
39 NCF NCF 2338 ECJB 1940 KN 2750 KN 190 mm 400 mm 132 mm
40 NCF NCF 2338 ECJB/PEX 2240 KN 2750 KN 190 mm 400 mm 132 mm
41 NUH NUH 2338 ECMH/PEX 2240 KN 2750 KN 190 mm 400 mm 132 mm
42 NUH NUH 2240 ECMH 1460 KN 2000 KN 200 mm 360 mm 98 mm
43 NCF NCF 2240 ECJB 1460 KN 2000 KN 200 mm 360 mm 98 mm
44 NUH NUH 2340 ECMH 2200 KN 3200 KN 200 mm 420 mm 138 mm
45 NCF NCF 2340 ECJB 2200 KN 3200 KN 200 mm 420 mm 138 mm
46 NCF NCF 2340 ECJB/PEX 2550 KN 3200 KN 200 mm 420 mm 138 mm
47 NUH NUH 2340 ECMH/PEX 2550 KN 3200 KN 200 mm 420 mm 138 mm
48 NUH NUH 2244 ECMH 1760 KN 2600 KN 220 mm 400 mm 108 mm
49 NCF NCF 2244 ECJB 1760 KN 2600 KN 220 mm 400 mm 108 mm
50 NUH NUH 2244 ECMH/PEX 2000 KN 2600 KN 220 mm 400 mm 108 mm
51 NCF NCF 2244 ECJB/PEX 2000 KN 2600 KN 220 mm 400 mm 108 mm
52 NUH NUH 2344 ECMH 2510 KN 3650 KN 220 mm 460 mm 145 mm
53 NCF NCF 2344 ECJB 2510 KN 3650 KN 220 mm 460 mm 145 mm
54 NUH NUH 2344 ECMH/PEX 2900 KN 3650 KN 220 mm 460 mm 145 mm
55 NUH NUH 2248 ECMH 1980 KN 3050 KN 240 mm 440 mm 120 mm
56 NUH NUH 2248 ECMH/PEX 2279 KN 3050 KN 240 mm 440 mm 120 mm
57 NUH NUH 2348 ECMH 2750 KN 4000 KN 240 mm 500 mm 155 mm
58 NUH NUH 2348 ECMH/PEX 3150 KN 4000 KN 240 mm 500 mm 155 mm

Features and advantages of QIBR high-capacity cylindrical rollerbearings

QIBR high-capacity cylindrical roller bearings solves several key problems in various fields, which are mainly reflected in the following aspects:

1. High load capacity of QIBR high-capacity cylindrical roller bearings

QIBR high-capacity cylindrical roller bearings have more rollers than ordinary cylindrical roller bearings, and the contact area between the rollers and the inner and outer rings is larger, which enables the bearings to withstand higher radial loads.

2. QIBR high-capacity cylindrical roller bearings have good wear resistance

QIBR high-capacity cylindrical roller bearings have a lower wear rate due to the large contact area of ​​the rollers, which is suitable for equipment with high loads and long-term stable operation.

3. QIBR high-capacity cylindrical roller bearings have excellent rigidity and stability

QIBR high-capacity cylindrical roller bearings have small deformation when loaded and show high rigidity, which makes them particularly suitable for occasions such as machine tool spindles that require high precision and stability

4. QIBR high-capacity cylindrical roller bearings effectively control noise

The high-precision QIBR high-capacity cylindrical roller bearings can effectively reduce noise during operation and improve the overall performance of the equipment through precise installation, proper lubrication and advanced monitoring systems.

5. QIBR high-capacity cylindrical roller bearings are highly cost-effective

The design of QIBR high-capacity cylindrical roller bearings allows it to provide efficient load support in a relatively small space. Using QIBR high-capacity cylindrical roller bearings can reduce costs while improving rigidity and stability.

The performance improvement and solutions of QIBR high-capacity cylindrical roller bearings

1. Dustproof and waterproof design

Especially in harsh environments, bearings need to have adequate protection measures to prevent dust, mud and water and other impurities from entering the bearings. This can be achieved by designing seals to avoid affecting the bearing's operating performance and life.

2. Optimize rollers

By optimizing the roller shape, the contact stress can be reduced, the load capacity and durability can be improved. Roller surface treatment can reduce friction, improve rolling accuracy and load capacity, and extend the service life of the bearing.

3. Improve manufacturing accuracy

Adopting advanced foreign processing equipment and processes, such as precision grinding, super-finishing grinding, etc., to improve the geometric accuracy of the inner and outer rings and rollers, reduce processing errors, and thus improve the rotation accuracy and roughness of the bearings.

4. Improve material performance

The use of surface coating technology (such as chrome plating, nitriding, etc.) can improve the wear resistance and corrosion resistance of the bearings, effectively extend the service life of the bearings, especially when working in harsh environments, the performance of the bearings can be significantly improved.

Main application areas of QIBR high-capacity cylindrical roller bearings

1. Mining machinery: such as ball mills, crushers, vibrating screens and other equipment. These equipment will generate large radial loads during operation and have a harsh working environment. QIBR high-capacity cylindrical roller bearings can effectively withstand this high load and have high impact resistance.

2. Heavy machine tools: In high-precision heavy machine tools, QIBR high-capacity cylindrical roller bearings are used to withstand heavy loads and ensure the processing accuracy and stability of the machine.

3. Drilling equipment: In oil drilling equipment, QIBR high-capacity cylindrical roller bearings are used to withstand the high load and complex working environment of the drilling rig. It can maintain good operation under extreme conditions.

4. Locomotive axle box: QIBR high-capacity cylindrical roller bearings are widely used in the axle box of railway locomotives. This bearing design can withstand high loads and effectively prevent the intrusion of dust and moisture, thereby improving the reliability and service life of the bearing.