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021Double-row Ball Slewing Bearing with Different Ball DiametersПоворотный Подшипник

021

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Стандарт

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

Внутренний диаметр

120mm-8000mm

Наружный диаметр

280mm-8000mm

Вес

20kg-8000kg

Structures

Outer Ring, Inner Ring, Spacer, Rolling element, Seal

Бренд

QIBR/OEM/Neutral

Упаковка

Standard Export Package

Материал

42CrMo, 50Mn, or Stainless Steel

Применения

Hoisting machinery, construction machinery, material handling machinery, mining machinery, metallurgical machinery, medical instruments,ships and warships, radar,wind turbine

021

Filters

NO. Product Product Number Внутренний диаметр (d) Наружный диаметр (D) Общая высота (H) Глубина (L) Диаметр наконечника (da) Тип шестерни
1 021.25.500/ 021.25.500 384 mm 616 mm 106 mm 32 mm 644 mm External Gear
2 021.25.560/ 021.25.560 444 mm 676 mm 106 mm 32 mm 704 mm External Gear
3 021.25.630/ 021.25.630 514 mm 746 mm 106 mm 32 mm 790.8 mm External Gear
4 021.25.710/ 021.25.710 594 mm 826 mm 106 mm 32 mm 862.8 mm External Gear
5 021.30.800/ 021.30.800 658 mm 942 mm 124 mm 40 mm 982.4 mm External Gear
6 021.30.900/ 021.30.900 758 mm 1042 mm 124 mm 40 mm 1086.4 mm External Gear
7 021.30.1000/ 021.30.1000 858 mm 1142 mm 124 mm 40 mm 1198 mm External Gear
8 021.30.1120/ 021.30.1120 978 mm 1262 mm 124 mm 40 mm 1318 mm External Gear
9 021.40.1250/ 021.40.1250 1074 mm 1426 mm 160 mm 48 mm 1497.6 mm External Gear
10 021.40.1400/ 021.40.1400 1224 mm 1576 mm 160 mm 48 mm 1641.6 mm External Gear
11 021.40.1600/ 021.40.1600 1424 mm 1776 mm 160 mm 48 mm 1845.2 mm External Gear
12 021.40.1800/ 021.40.1800 1624 mm 1976 mm 160 mm 48 mm 2055.2 mm External Gear
13 021.50.2000/ 021.50.2000 1785 mm 2215 mm 190 mm 60 mm 2300.8 mm External Gear
14 021.50.2240/ 021.50.2240 2025 mm 2455 mm 190 mm 60 mm 2540.8 mm External Gear
15 021.50.2500/ 021.50.2500 2285 mm 2715 mm 190 mm 60 mm 2804.4 mm External Gear
16 021.50.2800/ 021.50.2800 2585 mm 3015 mm 190 mm 60 mm 3110.4 mm External Gear
17 021.60.3150/ 021.60.3150 2872 mm 3428 mm 226 mm 84 mm 3536 mm External Gear
18 021.60.3550/ 021.60.3550 3272 mm 3828 mm 226 mm 84 mm 3936 mm External Gear
19 021.60.4000/ 021.60.4000 3722 mm 4278 mm 226 mm 84 mm 4395.6 mm External Gear
20 021.60.4500/ 021.60.4500 4222 mm 4778 mm 226 mm 84 mm 4879.6 mm External Gear

Features and advantages of QIBR double-row different-diameter ball slewing bearing 021 series

QIBR double-row different-diameter ball slewing bearing 021 series has many significant features and advantages, playing a key role in various fields, mainly reflected in the following aspects:

1.The efficient transmission capability of QIBR double-row different-diameter ball slewing bearing 021 series 

The design of external teeth of different-diameter ball for QIBR double-row different-diameter ball slewing bearing 021 series allows direct connection to the gear drive system, thereby achieves efficient power transmission. This reduces additional transmission components such as chains or belts, reducing mechanical losses and maintenance requirements.

2.The good stability and long life of QIBR double-row different-diameter ball slewing bearing 021 series 

The configuration of the double-row balls of the QIBR double-row different-diameter ball slewing bearing 021 series improves the stability of the bearing, reduces system vibration and noise, and improves the smoothness and reliability of operation. The optimized contact angle and load distribution can reduce internal wear of the bearing, thereby extend the service life of the bearing.

3. Customized service of QIBR double-row different-diameter ball slewing bearing 021 series

QIBR double-row different-diameter ball slewing bearing 021 series can provide customized services, and can design bearings according to specific needs to meet the special requirements and operating conditions of different industries.

The performance improvement and solution of QIBR double-row different-diameter ball slewing bearing 021 series

1. Improve material performance of the bearing 

QIBR double-row different-diameter ball slewing bearing 021 series can adopt high-temperature sealing strips and other materials to improve the bearing capacity and service life.

2. Improve rotation accuracy of the bearing

The production of QIBR double-row different-diameter ball slewing bearing 021 series adopts advanced processing equipment and processes, such as machining center and precision heat treatment, to improve the geometric accuracy of inner and outer rings, reduce machining errors, and thus improve the rotation accuracy and stability of bearings.

3. Reduce the need for bearing maintenance and replacement

QIBR double-row different-diameter ball slewing bearing 021 series is designed with seals and lubricating oil holes. The seals can prevent contaminants from entering the bearing and reduce grease leakage; the lubricating holes are convenient for grease filling, the service life is extended, and the cost of maintenance and replacement is reduced.

4. Personalized design

QIBR double-row different-diameter ball slewing bearing 021 series can provide personalized size solutions for different occasions to meet special applications. This not only enriches the standards of bearings, but also provides effective guidance for manufacturers to meet the personalized needs of users.

In summary, by optimizing materials, manufacturing precision, personalized design and other measures, the performance of QIBR double-row different-diameter ball slewing bearing 021 series can be significantly improved to meet increasingly demanding application requirements.

Main application areas of QIBR double-row different-diameter ball slewing bearing 021 series

Machine tool industry

QIBR double-row different-diameter ball slewing bearing 021 series is used for machining centers, CNC machine tools, etc., to withstand high loads and high precision requirements.

Engineering machinery

QIBR double-row different-diameter ball slewing bearing 021 series provides stable rotation support for excavators, cranes and bulldozers.

Wind power generation

QIBR double-row different-diameter ball slewing bearing 021 series is used for the rotating part of the blade to withstand strong wind loads.

Construction equipment

QIBR double-row different-diameter ball slewing bearing 021 series is used for tower cranes, elevators, etc. to ensure the smooth operation and efficient operation of the equipment.