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 Four Point Contact Ball Slewing Bearing is a heavy-duty rolling bearing that integrates high load-carrying capacity and high precision. Its balls fit into the V-shaped raceways of the rings in a four-point contact manner, and the outer ring adopts a split-type modular structure. It can simultaneously bear radial loads, axial loads, and overturning moments, serving as a core component in the precision transmission systems of heavy-duty equipment. As a professional slewing bearing manufacturer and a representative enterprise of slewing bearing china, NEWBEE Transmission’s Four Point Contact Ball Slewing Bearing, relying on the optimized "ball-raceway" full-contact design, has a 35% higher load-carrying capacity than traditional slewing bearings under the same volume. Meanwhile, its rotation accuracy reaches P4/P5 grade, making it widely used in industrial scenarios with strict requirements for rigidity, stability, and space efficiency, which fully demonstrates the R&D capabilities of slewing bearing manufacturers.
1. Superior Composite Load-Carrying Capacity: The four-point contact structure and widened raceway design of the Four Point Contact Ball Slewing Bearing enable it to simultaneously bear radial, axial, and moment loads. A single bearing can replace a combination of multiple bearings, greatly simplifying the equipment’s transmission structure. By optimizing the ball diameter and arrangement density, NEWBEE Transmission has increased the product’s rated dynamic load by 30% compared to the industry average. Moreover, it adapts to different slewing bearing drive requirements, making it a rare product among slewing bearing manufacturers that can handle multiple load types.
2.Extreme Precision Rotation Performance: This bearing has a rotation accuracy of P5/P4 grade, with radial runout ≤ 0.008mm and end face runout ≤ 0.01mm, making it suitable for high-precision positioning scenarios (such as CNC turntables and aerospace equipment). Relying on imported German precision grinding equipment, NEWBEE Transmission controls the ring raceway tolerance at the micron level, ensuring smooth transmission during the slewing bearing drive process. This also represents a technological breakthrough of slewing bearing china enterprises in the high-precision field.
3.Flexible Modular Structure Design: The split outer ring design allows the Four Point Contact Ball Slewing Bearing to fine-tune the preload during installation, reducing cumulative assembly errors. Equipped with an integrated cage structure, it can prevent ball deviation and further improve the operational stability of the slewing bearing drive system. At the same time, the modular design eliminates the need for overall equipment disassembly during later maintenance, significantly reducing operation and maintenance costs, which meets the core pursuit of "maintainability" by slewing bearing manufacturers.
4.Low Maintenance and Long Service Life Advantages: NEWBEE Transmission equips the Four Point Contact Ball Slewing Bearing with a multi-layer slewing bearing seal, which can effectively block the intrusion of impurities such as dust and moisture. Combined with a special lubrication process (grease lubrication interval extended to 500-800 hours), the service life of the bearing is extended to 1.2 times that of traditional products. The collaborative "seal-lubrication" design reduces maintenance frequency, which is a key innovation for slewing bearing manufacturers to improve product cost-effectiveness.
5.Strong Environmental Adaptability: The bearing rings are made of 42CrMo, 50Mn, or C45 alloy steel (with a raceway hardness of HRC 55-62 after quenching), and the balls are made of GCr15 high-carbon chromium steel. After anti-rust treatment, they can adapt to complex working conditions such as humidity and dust. For high-temperature scenarios, NEWBEE Transmission can customize high-temperature tempered rings and temperature-resistant grease (-30℃~120℃), fully demonstrating the scenario-specific customization capabilities of slewing bearing china enterprises.
With the advantages of composite load-carrying capacity and high precision, Four Point Contact Ball Slewing Bearings, as core products of slewing bearing manufacturers, are widely used in the following fields:
Industrial Machinery Field: Heavy-duty CNC machine tools (CNC turntables, rotary axes of boring and milling machines) rely on high rigidity and precise slewing bearing drive to meet stability requirements during heavy cutting. Positioners of automated welding robots and large warehouse rotary platforms can bear instantaneous impact loads without affecting transmission accuracy, adapting to the dual requirements of "heavy load + precision" from slewing bearing manufacturers.
Aerospace Field: For large aircraft electro-optical pod systems, the runout tolerance of ≤ 0.008mm ensures the measurement accuracy of electro-optical equipment. For rotary frames of ground simulation equipment and steering mechanisms of satellite antennas, the low-vibration characteristic is suitable for the operation of precision instruments. As a slewing bearing china enterprise, NEWBEE Transmission’s such products have passed aerospace-grade load tests.
New Energy Equipment Field: For yaw systems of wind power equipment, the multi-layer slewing bearing seal can resist outdoor sand and rain erosion. For heavy-duty handling robotic arms of photovoltaic modules, the composite load-carrying capacity adapts to the grabbing and rotating actions of modules. NEWBEE Transmission’s such bearings are among the few products of slewing bearing manufacturers that can be used in complex outdoor environments for a long time.
Construction Machinery Field: For rotary platforms of crawler cranes and rotating mechanisms of concrete pump trucks, the split structure facilitates on-site installation and commissioning. In addition, the slewing bearing drive can be designed with internal gears, external gears, or no gears according to equipment requirements, flexibly adapting to different transmission schemes, which highlights the customization capabilities of slewing bearing china enterprises.
The price of Four Point Contact Ball Slewing Bearings is affected by the following factors. As a slewing bearing manufacturer, NEWBEE Transmission can provide a transparent quotation plan:
1. Material Selection: The price of Four Point Contact Ball Slewing Bearings made of 42CrMo alloy steel is 15%-20% higher than that of products made of ordinary 50Mn steel. This is because 42CrMo has higher hardness and better fatigue resistance after quenching, making it suitable for heavy-load and high-frequency working conditions. If corrosion resistance is required, stainless steel materials (e.g., 440C) can be used, which will increase the price by another 25%-30%, making it suitable for humid or coastal outdoor scenarios.
2.Precision Grade: Due to the strict grinding precision requirements (raceway tolerance ≤ 0.003mm), the price of P4-grade Four Point Contact Ball Slewing Bearings is 20%-25% higher than that of P5-grade ones, making them suitable for ultra-high-precision scenarios such as aerospace and precision machine tools. For ordinary heavy-load scenarios (e.g., construction machinery), P5-grade bearings are sufficient to meet requirements with higher cost-effectiveness. This is also a common strategy for slewing bearing manufacturers to match requirements for different customers.
3. Specification and Size: The price of small and medium-sized Four Point Contact Ball Slewing Bearings with an inner diameter of 100-300mm (e.g., 010.20.200, 010.25.315) is relatively affordable. For large-sized products with an inner diameter > 500mm or an outer diameter > 3000mm, the price increases stepwise with the increase in size due to higher processing difficulty (requiring large-scale grinding equipment), with an increase rate of up to 50%-80%. As a slewing bearing china enterprise, NEWBEE Transmission can reduce the cost of some large-sized products through large-scale production.
4.Customization Requirements: The price of products requiring additional configuration of IP65 protection class slewing bearing seal, high-temperature grease (-30℃~120℃), or surface anti-corrosion coating will increase by 15%-25%. For special slewing bearing drive requirements (e.g., non-standard gear module and number of teeth), the price will increase by 20%-30% due to the need for re-designing tooling. For specific quotations, you can contact NEWBEE Transmission to obtain a customized plan.
1. Size Matching: The inner diameter of Four Point Contact Ball Slewing Bearings ranges from 80mm to 10,000mm. When purchasing, it is necessary to accurately measure the inner diameter (d), outer diameter (D), and width (B) of the equipment installation position to avoid assembly failures caused by size deviations. As a slewing bearing manufacturer, NEWBEE Transmission provides a full range of standard models (010 gearless series, 011/012 external gear series, 013/014 internal gear series) and non-standard customization services to adapt to the installation requirements of different slewing bearing drive systems.
2. Precision Requirements: For ultra-high-precision scenarios (e.g., aircraft electro-optical pods, CNC turntables), P4-grade Four Point Contact Ball Slewing Bearings should be selected to ensure rotation accuracy. For ordinary heavy-load scenarios (e.g., rotary platforms of construction machinery), P5-grade bearings are sufficient to balance performance and cost. NEWBEE Transmission can provide precision inspection reports, and as a slewing bearing china enterprise, it ensures the consistency of product precision.
3. Environmental Adaptation: For humid and dusty environments, priority should be given to products with multi-layer slewing bearing seal or customized stainless steel materials. For high-temperature environments (e.g., metallurgical equipment), high-temperature tempered rings and temperature-resistant grease should be selected. For outdoor scenarios (e.g., wind power, photovoltaics), UV aging resistance treatment should also be considered. As a slewing bearing manufacturer, NEWBEE Transmission can optimize product configurations according to environmental parameters.
4. Supplier Qualifications: It is advisable to choose slewing bearing manufacturers like NEWBEE Transmission that have a complete production chain (from material smelting to finished product inspection). Such manufacturers can provide material inspection reports, load test data, and after-sales technical support, avoiding the purchase of inferior products. As a benchmark enterprise of slewing bearing china, NEWBEE Transmission has passed the ISO 13485 quality system certification, and 100% of its products have undergone load tests.
5. Price Rationality: When comparing quotations from different slewing bearing manufacturers, attention should be paid to the "performance-price ratio" rather than simply pursuing low prices. Relying on large-scale production and imported equipment, NEWBEE Transmission can reduce unit costs while ensuring the quality of Four Point Contact Ball Slewing Bearings, and at the same time provide long-term technical support to avoid excessive later maintenance costs.
NEWBEE Transmission is a professional manufacturer of Four Point Contact Ball Slewing Bearings. As a slewing bearing manufacturer and a representative enterprise of slewing bearing china, it has been deeply engaged in the slewing bearing field for more than ten years. Its products cover an inner diameter range of 80mm-10,000mm, including three major series: 010 (gearless), 011/012 (external gear), and 013/014 (internal gear). It can customize products with ultra-large sizes, special slewing bearing drive parameters (e.g., non-standard gears), or reinforced slewing bearing seal structures according to customer needs. Relying on imported German precision grinding equipment and fully automated assembly lines, NEWBEE Transmission controls the raceway tolerance of Four Point Contact Ball Slewing Bearings within ±0.002mm, and the gear precision meets the GB/T 10095.1-2008 Grade 6 standard. Combined with the ISO 13485 quality system, each product undergoes 100% load testing and slewing bearing seal tightness testing to ensure delivery quality. Currently, the products have been widely used in heavy-duty robots, precision machine tools, new energy equipment, and other fields, becoming a trusted choice of slewing bearing manufacturers for customers worldwide. For detailed parameters of Four Point Contact Ball Slewing Bearings, customized slewing bearing drive plans, or slewing bearing seal technical materials, you can contact the technical team of NEWBEE Transmission directly.
1. Installation Specifications: When installing a Four Point Contact Ball Slewing Bearing, the preload should be adjusted evenly through the bolts of the split outer ring, and the torque value should comply with the requirements in the product manual (e.g., the recommended torque for M24 bolts is 180-200N·m). Knocking on the rings or balls is strictly prohibited to avoid raceway damage. It is recommended to use a torque wrench to control the installation force to ensure the coaxiality of the slewing bearing drive system.
2.Lubrication Management: Special grease should be injected before operation, with the filling amount being 1/2-2/3 of the internal space of the bearing. For heavy-load scenarios (e.g., construction machinery), extreme pressure lithium-based grease is recommended; for high-temperature scenarios (> 80℃), polyurea grease is recommended. The lubrication interval should be strictly followed: supplementary lubrication every 500 hours under normal working conditions, and inspection and supplementary lubrication every 300 hours under harsh working conditions (dust, humidity) to avoid slewing bearing seal wear and internal component jamming due to insufficient lubrication.
3. Regular Inspection and Maintenance: During daily operation, the bearing temperature (normal temperature ≤ 80℃) and noise level should be monitored regularly. If there is a sudden temperature rise or abnormal vibration, the machine should be shut down immediately for inspection to avoid ring deformation or slewing bearing drive jamming due to overload. The integrity of the slewing bearing seal should be checked every 1000 hours. If damage to the seal lip or impurity intrusion is found, the seal should be replaced in a timely manner and internal impurities should be cleaned to extend the service life of the bearing.
For the latest price, customization plans, or technical materials of Four Point Contact Ball Slewing Bearings, please contact NEWBEE Transmission:
Email: paul@newbeetrans.com
Official Website: www.newbeetrans.com
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sales@newbeetrans.com
+8615090185276