SWBTEC
Precision Turntable Bearing View Specs & Photos
The Slewbearingtec adopts P4 or P2 ultra-high rotation precision standard, and the radial and axial runout are strictly controlled within 0.005mm. With the unique pre-tightening negative clearance design, it provides excellent anti-overturning moment rigidity and bidirectional axial and radial composite load support capacity for high-precision numerical control rotary table and industrial robot joints, supporting bulk procurement.
P4/P2
Accuracy class
58-62HRC
Raceway hardness
cross roller
Structure
precision turntable bearing features
Micron-level Rotation Accuracy Eliminates Rotation Cumulative Error
The use of ultra-fine grinding process to ensure that the bearing runout accuracy to achieve P4 or even P2 standards. For example, the radial runout error of the model with an outer diameter of 300mm is less than 0.007mm. Compared with ordinary turntable bearings, the rotation positioning accuracy is improved by 3 times, which effectively eliminates the accumulated rotation error and meets the high-precision processing requirements of the five-axis linkage machining center.
High rigidity negative clearance design ensures equipment stability
All factory products are subject to strict pre-tightening treatment, the implementation of micro-negative clearance assembly. This design eliminates the internal clearance of the bearing and improves the overall rigidity by more than 45%. When bearing cantilever load or large eccentric moment, the bearing deformation is very small, which ensures the stability of the equipment under heavy cutting conditions.
Composite load bearing capacity lifting rated dynamic load
The unique raceway design (such as YRT three-row rollers or crossed cylindrical rollers) allows a single bearing to simultaneously withstand radial forces, bidirectional axial forces and overturning moments. Compared with the traditional combination bearing scheme, the rated dynamic load is increased by 20%, and the structure height is reduced by 30%, which greatly simplifies the mechanical structure design.
Temperature rise control to extend grease life
By optimizing the contact geometry between the roller and the raceway and the design of the cage, the starting friction torque is reduced by 15%. Under the continuous operation condition of 200 revolutions per minute, the temperature rise is controlled within 15 degrees Celsius, which effectively prevents the loss of accuracy caused by thermal expansion and prolongs the service life of the grease.
Convenient integrated mounting hole design
The inner and outer rings are prefabricated with standard mounting holes and threaded holes, and no additional flanges or bearing seats are required for fixing. This integrated design reduces the installation coaxiality error to less than 0.01mm, while shortening the assembly man-hours by 40%, greatly reducing the customer’s installation cost and technical threshold.
Heat treatment process to enhance anti-fatigue spalling
Made of high-purity bearing steel, after the overall quenching and cryogenic treatment process, the surface hardness of the raceway is stable at 58 to 62HRC. The effective hardening layer depth is greater than 1.5mm, and the anti-fatigue spalling ability is significantly enhanced. Under standard load, the theoretical value of L10 fatigue life can reach more than 30000 hours.
precision turntable bearing Detailed specifications table
| Model Specifications | Inner diameter (mm) | Outer diameter (mm) | Height (mm) | Axial runout accuracy (μm) | Radial runout accuracy (μm) | Axial rated static load (kN) | Overturning moment stiffness (kN·m/mrad) |
| YRT-50 | 50 | 126 | 30 | 3 | 5 | 158 | 2.5 |
| YRT-80 | 80 | 146 | 35 | 3 | 5 | 225 | 6.0 |
| YRT-100 | 100 | 185 | 38 | 3 | 5 | 315 | 11.5 |
| YRT-200 | 200 | 300 | 45 | 4 | 7 | 810 | 65.0 |
| RB-15025 | 150 | 210 | 25 | 6 | 8 | 125 | 8.5 |
| RB-40040 | 400 | 510 | 40 | 10 | 15 | 480 | 120.0 |
precision turntable bearing Applicable Crowd
CNC machine tool R & D manufacturer
It is suitable for engineers who develop five-axis linkage machining center, CNC grinding machine turntable and precision indexing plate. The product can directly respond to the harsh requirements of high rigidity and high rotation accuracy of the machine tool turntable, solve the problem of heavy cutting vibration and positioning error, and improve the overall processing level of the machine tool.
Industrial robot and automation integrator
Technical leaders for industrial robot joints, collaborative robot bases and wafer transfer robots. The compact structure and strong torque carrying capacity of the precision turntable bearing are perfectly adapted to the working conditions where the robot joint space is limited and needs to bear complex torque, ensuring the repeated positioning accuracy of the action.
Precision measurement and testing equipment manufacturers
Designers for coordinate measuring machines, optical detection turntables and radar bases. The extremely low runout error and smooth friction torque of the bearing are used to ensure the stability of data acquisition during the rotation of the measuring instrument and eliminate the interference of mechanical jitter on the measurement results.
Medical Device Engineering Department
It is suitable for the procurement and research and development of CT scanners, MRI equipment and rotating parts of surgical robots. The low noise and vibration-free operation characteristics of these bearings, as well as the high reliability of life performance, meet the strict standards of medical equipment for safety and quiet environment.
precision turntable bearing materials
The core rings (inner ring and outer ring) of the precision turntable bearing are made of high purity GCr15 bearing steel or 42CrMo alloy structural steel. The purity of the material is extremely high, and the content of sulfur and phosphorus impurities is controlled below 0.02%. The rolling element is strictly selected from GCr15 high carbon chromium bearing steel, and after precision sorting, the diameter difference is controlled within 0.001mm. The cage is made of high-strength reinforced nylon or precision brass material, which has good self-lubricating performance and low friction coefficient, ensuring no deformation or fracture under high-speed operation.precision turntable bearing life and after-sales service
Pre-sales and after-sales service commitment
We provide complete technical support, including 3D model download and load check calculation services. All products sold are provided with unique serial number traceability and 12 months warranty service. If there is a non-human quality problem, promise to provide a technical analysis report within 24 hours after receiving the feedback, and provide free maintenance or replacement plan to ensure that the production line does not stop.
Expected service life and maintenance
Based on the L10 life calculation standard, under rated load and good lubrication conditions, the expected operating life of this precision rotary table bearing exceeds 30000 hours. It is recommended to check the pre-tightening force every 2000 hours of operation and supplement it with lithium-based extreme pressure grease of the specified brand. Regular maintenance can prevent the raceway fretting wear caused by lubrication depletion, and ensure that the accuracy is maintained at more than 90% of the factory standard for a long time.
factory and certificate
certificate
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Precision Turntable Bearing View Specs & Photos
The Slewbearingtec adopts P4 or P2 ultra-high rotation precision standard, and the radial and axial runout are strictly controlled within 0.005mm. With the unique pre-tightening negative clearance design, it provides excellent anti-overturning moment rigidity and bidirectional axial and radial composite load support capacity for high-precision numerical control rotary table and industrial robot joints, supporting bulk procurement.
Accuracy class
P4/P2
Raceway hardness
58-62HRC
Structure
cross roller
precision turntable bearing features
Micron-level Rotation Accuracy Eliminates Rotation Cumulative Error
The use of ultra-fine grinding process to ensure that the bearing runout accuracy to achieve P4 or even P2 standards. For example, the radial runout error of the model with an outer diameter of 300mm is less than 0.007mm. Compared with ordinary turntable bearings, the rotation positioning accuracy is improved by 3 times, which effectively eliminates the accumulated rotation error and meets the high-precision processing requirements of the five-axis linkage machining center.
High rigidity negative clearance design ensures equipment stability
All factory products are subject to strict pre-tightening treatment, the implementation of micro-negative clearance assembly. This design eliminates the internal clearance of the bearing and improves the overall rigidity by more than 45%. When bearing cantilever load or large eccentric moment, the bearing deformation is very small, which ensures the stability of the equipment under heavy cutting conditions.
Composite load bearing capacity lifting rated dynamic load
The unique raceway design (such as YRT three-row rollers or crossed cylindrical rollers) allows a single bearing to simultaneously withstand radial forces, bidirectional axial forces and overturning moments. Compared with the traditional combination bearing scheme, the rated dynamic load is increased by 20%, and the structure height is reduced by 30%, which greatly simplifies the mechanical structure design.
Temperature rise control to extend grease life
By optimizing the contact geometry between the roller and the raceway and the design of the cage, the starting friction torque is reduced by 15%. Under the continuous operation condition of 200 revolutions per minute, the temperature rise is controlled within 15 degrees Celsius, which effectively prevents the loss of accuracy caused by thermal expansion and prolongs the service life of the grease.
Convenient integrated mounting hole design
The inner and outer rings are prefabricated with standard mounting holes and threaded holes, and no additional flanges or bearing seats are required for fixing. This integrated design reduces the installation coaxiality error to less than 0.01mm, while shortening the assembly man-hours by 40%, greatly reducing the customer’s installation cost and technical threshold.
Heat treatment process to enhance anti-fatigue spalling
Made of high-purity bearing steel, after the overall quenching and cryogenic treatment process, the surface hardness of the raceway is stable at 58 to 62HRC. The effective hardening layer depth is greater than 1.5mm, and the anti-fatigue spalling ability is significantly enhanced. Under standard load, the theoretical value of L10 fatigue life can reach more than 30000 hours.
precision turntable bearing Detailed specifications table
| Model Specifications | Inner diameter (mm) | Outer diameter (mm) | Height (mm) | Axial runout accuracy (μm) | Radial runout accuracy (μm) | Axial rated static load (kN) | Overturning moment stiffness (kN·m/mrad) |
| YRT-50 | 50 | 126 | 30 | 3 | 5 | 158 | 2.5 |
| YRT-80 | 80 | 146 | 35 | 3 | 5 | 225 | 6.0 |
| YRT-100 | 100 | 185 | 38 | 3 | 5 | 315 | 11.5 |
| YRT-200 | 200 | 300 | 45 | 4 | 7 | 810 | 65.0 |
| RB-15025 | 150 | 210 | 25 | 6 | 8 | 125 | 8.5 |
| RB-40040 | 400 | 510 | 40 | 10 | 15 | 480 | 120.0 |
precision turntable bearing Applicable Crowd
CNC machine tool R & D manufacturer
It is suitable for engineers who develop five-axis linkage machining center, CNC grinding machine turntable and precision indexing plate. The product can directly respond to the harsh requirements of high rigidity and high rotation accuracy of the machine tool turntable, solve the problem of heavy cutting vibration and positioning error, and improve the overall processing level of the machine tool.
Industrial robot and automation integrator
Technical leaders for industrial robot joints, collaborative robot bases and wafer transfer robots. The compact structure and strong torque carrying capacity of the precision turntable bearing are perfectly adapted to the working conditions where the robot joint space is limited and needs to bear complex torque, ensuring the repeated positioning accuracy of the action.
Precision measurement and testing equipment manufacturers
Designers for coordinate measuring machines, optical detection turntables and radar bases. The extremely low runout error and smooth friction torque of the bearing are used to ensure the stability of data acquisition during the rotation of the measuring instrument and eliminate the interference of mechanical jitter on the measurement results.
Medical Device Engineering Department
It is suitable for the procurement and research and development of CT scanners, MRI equipment and rotating parts of surgical robots. The low noise and vibration-free operation characteristics of these bearings, as well as the high reliability of life performance, meet the strict standards of medical equipment for safety and quiet environment.
precision turntable bearing materials
The core rings (inner ring and outer ring) of the precision turntable bearing are made of high purity GCr15 bearing steel or 42CrMo alloy structural steel. The purity of the material is extremely high, and the content of sulfur and phosphorus impurities is controlled below 0.02%. The rolling element is strictly selected from GCr15 high carbon chromium bearing steel, and after precision sorting, the diameter difference is controlled within 0.001mm. The cage is made of high-strength reinforced nylon or precision brass material, which has good self-lubricating performance and low friction coefficient, ensuring no deformation or fracture under high-speed operation.precision turntable bearing life and after-sales service
Pre-sales and after-sales service commitment
Expected service life and maintenance
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