NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
A Three Row Cylindrical Roller Slewing Bearing is an extra-large, heavy-duty precision bearing that adopts an independent layout of three rows of rollers (two rows of axial rollers + one row of radial rollers). The inner or outer ring integrates a full-tooth or segmented tooth structure, which can bear axial loads, radial loads, and ultra-large overturning moments respectively. It is a core component of the slewing bearing drive system in giant rotating equipment.
As an experienced slewing bearing manufacturer , NEWBEE Transmission’s Three Row Cylindrical Roller Slewing Bearings, relying on the load-sharing design, have a 60% higher load-carrying capacity than double-row bearings. Moreover, by strengthening the slewing bearing seal system, they are suitable for extreme working conditions such as high dust and high humidity. As a technical benchmark in the slewing bearing china manufacturing field, they are widely used in heavy machinery fields with strict requirements for heavy-load limits and transmission stability.
Load-Sharing Super Load-Carrying Capacity : The three rows of rollers in Three Row Cylindrical Roller Slewing Bearings have their own functions—two rows of axial rollers bear bidirectional axial forces (with a total capacity of up to 8×10⁴kN), and one row of radial rollers bear radial forces (up to 3×10⁴kN). The upper limit of overturning moment bearing exceeds 2×10⁶N·m. A single set of bearings can replace the traditional combined bearing group, greatly simplifying the structure of the slewing bearing drive system. As a professional slewing bearing manufacturer , NEWBEE Transmission increases the impact resistance of the product by an additional 25% by optimizing the roller diameter ratio. Extreme Structural Stability : Made of 42CrMo alloy structural steel through integral forging, Three Row Cylindrical Roller Slewing Bearings undergo integral quenching (raceway hardness HRC 58-62) and ultra-precision grinding, with their deformation resistance 40% higher than that of ordinary bearings. The gear ring undergoes carburizing and quenching (carburized layer depth 3-8mm), ensuring no plastic deformation on the tooth surface during the slewing bearing drive process.
Precise Transmission Performance : The gear ring meshing accuracy of Three Row Cylindrical Roller Slewing Bearings reaches GB Class 4 (equivalent to ISO Class 4), and the backlash of the slewing bearing drive is controlled within 0.1-0.2mm, making them suitable for high-precision servo drives. Thanks to NEWBEE Transmission’s precision machining process, the raceway tolerance is ≤0.03mm, ensuring no jamming and low vibration during rotation.
Multiple Sealing Protection : Innovative adoption of a combined slewing bearing seal design of "three-layer skeleton oil seal + labyrinth dust cover + oil slinger" results in a protection level of IP66, which can resist erosion from dust, muddy water, and salt spray. As a leading enterprise in slewing bearing china , NEWBEE Transmission can customize metal sealing structures, suitable for extreme temperatures ranging from -50℃ to 150℃. Full-Scenario Customization Capability : Three Row Cylindrical Roller Slewing Bearings support internal tooth/external tooth/toothless structures, and the inner and outer rings can integrate temperature/vibration sensor interfaces (to monitor the slewing bearing drive status). As an experienced slewing bearing manufacturer , NEWBEE Transmission can provide non-standard customization with an outer diameter of 2-15m to meet the needs of giant equipment.
With the load-sharing advantage and the weather resistance of the slewing bearing seal , Three Row Cylindrical Roller Slewing Bearings are widely used in the following fields:
Heavy Construction Machinery : Turntables of thousand-ton crawler cranes and upper bodies of large excavators. The load-sharing design of Three Row Cylindrical Roller Slewing Bearings ensures no deviation of the slewing bearing drive during heavy-load hoisting, and the slewing bearing seal resists construction site dust.
Giant Port Machinery : Extra-large container quay cranes and rotating platforms of ship unloaders. Three Row Cylindrical Roller Slewing Bearings can bear instantaneous impact loads, and the high precision of the slewing bearing drive ensures container positioning, which is a landmark application of slewing bearing china in the port field.
New Energy Equipment : Yaw systems of MW-class wind turbines and large photovoltaic tracking brackets. NEWBEE Transmission’s Three Row Cylindrical Roller Slewing Bearings adopt a slewing bearing seal dust-proof design, adapting to complex outdoor climates and ensuring continuous operation of the slewing bearing drive .
Mining and Metallurgy : Rotating platforms of mining crushing stations and rotating frames of metallurgical rolling mills. The high rigidity of Three Row Cylindrical Roller Slewing Bearings and the wear resistance of the slewing bearing seal adapt to high-dust and high-impact working conditions.
Military and Special Equipment : Large radar bases and shipborne cranes. The low-vibration slewing bearing drive of Three Row Cylindrical Roller Slewing Bearings and the anti-corrosion design of the slewing bearing seal meet the requirements of harsh environments.
The price of Three Row Cylindrical Roller Slewing Bearings is affected by the following factors. As a leading enterprise in slewing bearing china , NEWBEE Transmission can provide cost-effective solutions:
Materials and Processes : The price of products made of 42CrMo forged steel is 40%-50% higher than that of ordinary cast steel. Products using vacuum degassing + ultrasonic flaw detection processes have an additional 20% price increase, which are especially suitable for scenarios with extremely high requirements for the stability of the slewing bearing drive .
Specification and Size : The price of products with an outer diameter of 5-8m is relatively controllable. For products with an outer diameter >10m, due to the limitations of processing equipment, the price increases exponentially with the size. Large-scale production by slewing bearing manufacturers can reduce costs.
Precision Grade : Three Row Cylindrical Roller Slewing Bearings with GB Class 4 precision have a 25%-35% higher price than those with GB Class 5 due to the high meshing accuracy of the slewing bearing drive , making them suitable for precision heavy-duty equipment.
Customization Requirements : Products with IP67-class slewing bearing seal , slewing bearing drive integrated with encoders, or special anti-corrosion coatings have a price increase of 30%-50%. For quotations, you can contact NEWBEE Transmission to obtain factory-direct supply solutions from slewing bearing china .
Load Matching : Select products with corresponding rated loads according to axial/radial loads and overturning moments. As a professional slewing bearing manufacturer , NEWBEE Transmission can provide slewing bearing drive load simulation software to assist in selection.
Environmental Adaptation : For marine environments, priority should be given to products with stainless steel slewing bearing seal . For high-temperature scenarios, customized bearings with high-temperature tempering treatment are required. As a technology leader in slewing bearing china , NEWBEE Transmission can provide full-scenario solutions.
Supplier Qualifications : Choose slewing bearing manufacturers like NEWBEE Transmission that have full-process capabilities including forging, heat treatment, and precision machining. They should provide material reports and slewing bearing drive test data to ensure reliability.
Cost Control : Compare quotations from different slewing bearing manufacturers . The factory-direct supply model of slewing bearing china (such as NEWBEE Transmission) can reduce intermediate links and lower procurement costs by 15%-20%.
NEWBEE Transmission is a leading slewing bearing manufacturer in China and a benchmark enterprise in slewing bearing china , with more than 20 years of experience in the Three Row Cylindrical Roller Slewing Bearing field. Its products cover outer diameters from 2m to 15m, support full-tooth/segmented tooth structures, and can customize special slewing bearing seal (such as metal dust covers) and slewing bearing drive gear rings (module 3-12mm). Relying on 3000-ton forging equipment, imported German CNC grinders, and ISO 9001/14001 systems, NEWBEE Transmission's Three Row Cylindrical Roller Slewing Bearings have passed 100% non-destructive testing. The accuracy of the slewing bearing drive and the performance of the slewing bearing seal meet international standards, and they are widely used in heavy machinery, ports, and other fields. As an export-oriented enterprise in slewing bearing china , its products are sold to Europe and America and are well recognized. For detailed parameters or slewing bearing drive test reports, you can contact the technical team directly.
When installing, bolts should be tightened step by step in a diagonal order (the preload is 75% of the bolt yield strength) to avoid local stress affecting the accuracy of the slewing bearing drive . It is recommended to use special tools provided by NEWBEE Transmission. Before the first operation, inject special extreme-pressure grease (the filling amount is 1/3 of the internal space) and replenish it every 200 hours of operation; in harsh environments, the interval should be shortened to 100 hours. At the same time, check the integrity of the slewing bearing seal . Regularly inspect the gear ring gap (normal value 0.1-0.2mm) of the slewing bearing drive and the sealing performance of the slewing bearing seal . If abnormalities are found, stop the machine immediately for inspection to avoid raceway damage.
For the latest price of Three Row Cylindrical Roller Slewing Bearings, customized solutions for slewing bearing drive , or technical information about slewing bearing seal , please contact NEWBEE Transmission, a high-quality supplier of slewing bearing china :
Email: paul@newbeetrans.com
Official Website: www.newbeetrans.com
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sales@newbeetrans.com
+8615090185276