872DBS147y
- Бренд
- QIBR
- Alternative brand
- NSK
- Rolling element type
- Ball
- Measurement system
- Metric
- Weight
- 158 kg
- Outer diameter
- 1112 mm
- Inner diameter
- 872 mm
- Total width
- 75 mm
- External hole circle diameter
- 1078 mm
- Internal hole circle diameter
- 962 mm
- Number of mounting holes of the inner ring
- 30
- Number of mounting holes of the outer ring
- 30
- Hole diameter at outer ring
- 18 mm
- Hole diameter at inner ring
- 18 mm
- Distance at top outer ring/inner ring
- 13 mm
- Width of outer ring
- 65 mm
- Inner diameter of outer ring
- 1022 mm
- Outer diameter of inner ring
- 1018 mm
- Gear type
- Internal gear
- Module
- 10 mm
- Number of teeth
- 89
- Gear P.C.D
- 890 mm
- Tooth width
- 62 mm
- Tooth forces
- 122 kN
- Basic static load rating (axial)
- 2.64 kN
- Temperature
- -20 ℃ to +100 ℃
- Bearing type
- Four point contact ball slewing ring bearing
- Ring material
- 42CrMo or 50Mn
- Sealing material
- NBR
- Seal type
- Closed type
- Ball material
- AISI 52100
- Cage material
- Nylon
Укажите условия эксплуатации и необходимое количество.
Описание
The inner ring with toothed steps and a four-point contact structure is specifically designed for use in small and medium-sized cranes. This configuration ensures efficient load distribution and precise positioning, crucial for the reliable operation of crane machinery. The toothed steps on the inner ring facilitate smooth engagement and torque transmission, allowing for controlled movement and stability during crane operations.The four-point contact structure enhances the bearing's ability to withstand axial and radial loads simultaneously, optimizing performance in dynamic and heavy-duty applications. This design is tailored to meet the operational demands of crane systems, providing robustness and durability under varying load conditions.
QIBR - 872DBS147y Slewing Bearing Advantages and Applications
872DBS147y Slewing Bearing has high precision and strong vibration resistance. Inner diameter is 872 mm,Outer diameter is 1112 mm,Total width is 75 mm,Weight is 158 kg. It is suitable for bogies, subways, ore crushing equipment, concrete pump trucks, and rotary excavators, etc. and is the most widely used bearing in working conditions that require greater impact.
QIBR - 872DBS147y Slewing Bearing Characteristics
872DBS147y Slewing Bearing, adapts to harsh environments and has a long service life. 872DBS147y Slewing Bearing, can simultaneously withstand radial loads, axial loads and overturning moments, and is suitable for mechanical equipment that requires high stability.
872DBS147y Slewing Bearing Features and Advantages
Compact design: Compact structure, it can be installed in space-constrained environments, and has a wider range of applications.
High load capacity: It can withstand axial, radial and overturning moments at the same time, suitable for heavy-duty applications.
Superior precision: Maintain high precision during use and reduce errors in equipment operation.
High temperature and wear resistance: Made of high-temperature bearing steel, with good wear resistance and strength.
Application: Widely used in lifting machinery, engineering machinery, transportation machinery, mining machinery, metallurgical machinery, medical equipment, ships, warships, radar, wind power generation and other fields.
QIBR - 872DBS147y Slewing Bearing Optimization
Grease replacement: Replace grease with other greases such as SFK, Mobil, Krupp, etc. to optimize the working performance and use conditions of the bearing.
Coating optimization: Provide other coatings such as zinc plating or nickel plating to enhance corrosion resistance and wear resistance and extend its service life in harsh environments.
Process optimization: Optimize the bearing production process, increase the bearing operating temperature range, and improve the bearing accuracy and stability.
More customization: QIBR can optimize the bearing structure design according to customers’ drawings or equipment requirements to meet equipment needs.
QIBR - 872DBS147y Slewing support bearing quality control
Dimension measurement: Use a variety of professional high-precision instruments to measure multiple dimensions of the bearing, with the highest accuracy up to 0.01mm.
Rotation accuracy: Use a dial indicator to measure small flaws or deviations on the bearing surface, with a measurement accuracy of up to 0.01mm.
Hardness measurement: Use a Leeb hardness tester to measure the bearing surface hardness, with a measurement accuracy of ±6HLD.
Metallographic analysis: Use a professional metallographic microscope to analyze the internal metallographic structure of the metal.
Geometric tolerance: Use a roundness meter to measure the bearing geometry and relative position.
Noise monitoring: Use a vibration meter to monitor the vibration during operation and obtain noise data.
Особенности и преимущества
Inner ring with toothed steps, four-point contact structure, used for small and medium-sized cranes.
The outer ring has excellent mechanical performance, with high strength and toughness. After quenching and tempering (Q+T), it exhibits fatigue resistance, impact resistance, and excellent low-temperature impact toughness.
Загрузки
Показано 4 из 7
Анкета условий работы подшипника
Bearing Condition Questionnaire
Документы для дилеров
Agent Application Form
Каталог продукции
Slewing & Cross Roller Bearing Catalog
Каталог продукции
Bearing Unit Catalog
Показано 4 из 7
Другие модели серии DBS Internal Gear
Показать все
1014DBS101y
Inner diameter: 1014 mm · Outer diameter: 1300 mm · Total width: 100 mm

1074DBS101y
Inner diameter: 1074 mm · Outer diameter: 1400 mm · Total width: 96 mm

1078DBS101y
Inner diameter: 1078 mm · Outer diameter: 1377 mm · Total width: 130 mm

1080DBS113y
Inner diameter: 1080 mm · Outer diameter: 1300 mm · Total width: 110 mm
