Product Description

Japan original THK RA16013UUCCO Cross roller bearing

Detailed parameters for more models

Oil diameter Nominal model d D dp B a b r min ds(max) Dh(min) Cr(KN) Cor(KN) kg
50 RA 5008 50 66 57 8 2 0.8 0.5 53.5 60.5 5.1 7.19 0.08
60 RA 6008 60 76 67 8 2 0.8 0.5 63.5 70.5 5.68 8.68 0.09
70 RA 7008 70 86 77 8 2 0.8 0.5 73.5 80.5 5.98 9.8 0.1
80 RA 8008 80 96 87 8 2 0.8 0.5 83.5 90.5 6.37 11.3 0.11
90 RA 9008 90 106 97 8 2 0.8 0.5 93.5 100.5 6.76 12.4 0.12
100 RA 10008 100 116 107 8 2 0.8 0.5 103.5 110.5 7.15 13.9 0.14
110 RA 11008 110 126 117 8 2 0.8 0.5 113.5 120.5 7.45 15 0.15
120 RA 12008 120 136 127 8 2 0.8 0.5 123.5 130.5 7.84 16.5 0.17
130 RA 13008 130 146 137 8 2 0.8 0.5 133.5 140.5 7.94 17.6 0.18
140 RA 14008 140 156 147 8 2 0.8 0.5 143.5 150.5 8.33 19.1 0.19
150 RA 15008 150 166 157 8 2 0.8 0.5 153.5 160.5 8.82 20.6 0.2
160 RA 16013 160 186 172 13 2.5 1.6 0.8 165 179 23.3 44.9 0.59
170 RA 17013 170 196 182 13 2.5 1.6 0.8 175 189 23.5 46.5 0.64
180 RA 18013 180 206 192 13 2.5 1.6 0.8 185 199 24.5 49.8 0.68
190 RA 19013 190 216 202 13 2.5 1.6 0.8 195 209 24.9 51.5 0.69
200 RA 20013 200 226 212 13 2.5 1.6 0.8 205 219 25.8 54.7 0.71

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Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Axial Bearing
Samples:
US$ 0.1/Piece
1 Piece(Min.Order)

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Customization:
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cross roller bearing

Are there specific maintenance practices that can extend the life of cross roller bearings?

Implementing proper maintenance practices is essential for extending the life of cross roller bearings. Regular maintenance helps prevent premature wear, minimize downtime, and ensure optimal performance. Here are specific maintenance practices that can contribute to extending the life of cross roller bearings:

  • Regular Inspection:
  • Perform regular inspections of cross roller bearings to detect any signs of wear, damage, or abnormal operating conditions. Visual inspections can identify visible damage, such as cracks, pitting, or corrosion. Additionally, monitoring noise, vibration, and temperature levels during operation can help identify potential issues early on.

  • Lubrication:
  • Proper lubrication is crucial for the smooth operation and longevity of cross roller bearings. Follow the manufacturer’s recommendations regarding the type and quantity of lubricant to use. Establish a regular lubrication schedule and ensure that the bearings are adequately lubricated. Monitor the lubricant condition and replenish or replace it as needed to maintain optimal lubrication levels.

  • Contamination Control:
  • Preventing contamination is essential for the longevity of cross roller bearings. Implement measures to control and minimize the ingress of contaminants, such as dust, dirt, or moisture. Use appropriate sealing or shielding mechanisms to protect the bearing from external particles. Clean the surrounding area regularly and ensure that the bearing housing and mounting surfaces are free from debris.

  • Proper Mounting:
  • Ensure proper mounting and alignment of cross roller bearings to avoid unnecessary stress or misalignment that can lead to premature wear. Follow the manufacturer’s guidelines for mounting procedures, including the use of suitable tools and torque values. Ensure that the mounting surfaces are clean, flat, and perpendicular to minimize stress concentrations.

  • Load and Speed Considerations:
  • Be mindful of the recommended load and speed limits specified by the bearing manufacturer. Avoid exceeding these limits as it can accelerate wear and decrease the bearing’s lifespan. If operating conditions change, such as increased load or speed, consult the manufacturer for guidance on appropriate bearing selection or additional maintenance measures.

  • Periodic Reassessment:
  • Periodically reassess the operating conditions and performance of cross roller bearings. As equipment and usage patterns may change over time, it is essential to periodically review the bearing’s performance and consider reevaluating maintenance practices. This can help identify potential improvements or adjustments to ensure continued reliability and longevity.

  • Training and Documentation:
  • Provide training to personnel responsible for the maintenance and operation of equipment that utilizes cross roller bearings. Ensure they are familiar with proper maintenance procedures and understand the importance of adhering to maintenance schedules. Maintain documentation of maintenance activities, including inspection reports, lubrication records, and any interventions or replacements performed.

By implementing these specific maintenance practices, it is possible to extend the life of cross roller bearings, optimize their performance, and minimize the risk of premature failures. Regular inspections, proper lubrication, contamination control, proper mounting, considering load and speed limits, periodic reassessment, and training and documentation are all key aspects of effective maintenance for cross roller bearings.

cross roller bearing

How do cross roller bearings improve the functionality of industrial machinery like CNC machines?

Cross roller bearings play a significant role in improving the functionality of industrial machinery, particularly CNC (Computer Numerical Control) machines. These precision bearings offer several advantages that enhance the performance and capabilities of CNC machines:

  • Precision Positioning:
  • Cross roller bearings are known for their exceptional positioning accuracy. They have a unique design that allows for point contact between the rollers and raceways, resulting in minimal elastic deformation and reduced clearance. This enables CNC machines to achieve highly precise positioning and motion control. The low friction characteristics of cross roller bearings also contribute to smoother and more accurate movements, ensuring precise machining and tight tolerances.

  • Rigidity and Stability:
  • Cross roller bearings exhibit high rigidity and stability due to their compact design and the elimination of clearance. This is crucial in CNC machines, where maintaining stability and rigidity during machining operations is essential. The high rigidity of cross roller bearings helps minimize vibrations, deflections, and deformations, ensuring precise and repeatable machining results. It enhances the overall stability of the machine, enabling it to handle high cutting forces and maintain dimensional accuracy even during heavy-duty operations.

  • Load Capacity:
  • Cross roller bearings have a unique structure that allows them to support high loads in all directions, including radial, axial, and moment loads. This makes them suitable for handling the heavy loads encountered in CNC machines. The ability of cross roller bearings to distribute and carry loads evenly helps prevent premature wear and prolong the service life of the machine. It also allows CNC machines to handle a wide range of machining tasks, from light-duty precision work to heavy-duty milling and cutting operations.

  • Compact Design:
  • Cross roller bearings have a compact and space-saving design. This is advantageous in CNC machines, where space can be limited, especially in multi-axis configurations. The compact design of cross roller bearings allows for efficient use of available space, enabling CNC machines to have a smaller footprint while maintaining high functionality and performance. It also facilitates easier integration of the bearings into the machine structure, simplifying assembly and reducing overall weight.

  • High-Speed Capability:
  • Cross roller bearings are capable of operating at high speeds due to their low friction characteristics and optimized design. This is crucial in CNC machines, where high-speed machining and rapid positioning are often required to improve productivity. The low friction of cross roller bearings minimizes heat generation and allows for smooth and efficient operation at high rotational speeds. It ensures that CNC machines can achieve fast and accurate movements, reducing cycle times and increasing overall machining efficiency.

  • Long Service Life:
  • The robust construction and high-quality materials used in cross roller bearings contribute to their long service life. CNC machines often operate in demanding environments and undergo continuous use. The durability and reliability of cross roller bearings help minimize downtime and maintenance requirements, ensuring uninterrupted operation of the CNC machine. The extended service life of cross roller bearings also leads to cost savings by reducing the need for frequent bearing replacements.

In summary, cross roller bearings improve the functionality of industrial machinery like CNC machines by providing precision positioning, rigidity and stability, high load capacity, a compact design, high-speed capability, and long service life. These advantages enable CNC machines to achieve highly accurate and repeatable machining, handle heavy loads, operate at high speeds, and maintain stability during demanding operations. By incorporating cross roller bearings into CNC machines, manufacturers can enhance productivity, improve machining quality, and achieve greater efficiency in their manufacturing processes.

cross roller bearing

What are cross roller bearings and how are they used in various industrial applications?

Cross roller bearings are specialized types of roller bearings that utilize cylindrical rollers arranged in a cross configuration between inner and outer rings. This unique design allows for high radial, axial, and moment load capacities while maintaining a compact and space-saving profile. Cross roller bearings are commonly used in various industrial applications where precision, rigidity, and load-carrying capacity are critical. Here’s a detailed explanation of cross roller bearings and their uses in different industrial sectors:

  • Robotics and Automation:
  • Cross roller bearings are extensively used in robotics and automation systems. These bearings provide high rigidity and precision, making them suitable for robotic joints, rotary tables, and linear motion systems. They can handle complex loads and moments, enabling smooth and accurate movement in robotic applications. Cross roller bearings are also preferred in industrial automation equipment such as pick-and-place machines, assembly systems, and semiconductor manufacturing equipment.

  • Machine Tools:
  • In machine tool applications, where high precision and rigidity are essential, cross roller bearings find wide usage. They are commonly employed in spindle units, rotary tables, and indexing heads of milling machines, lathes, and grinding machines. Cross roller bearings offer excellent rotational accuracy, enabling superior machining performance and surface finish. Their compact design allows for space optimization, making them suitable for machine tools with limited installation space.

  • Medical and Optical Equipment:
  • Cross roller bearings play a crucial role in medical and optical equipment that requires precise movement and stability. They are used in medical imaging devices, such as CT scanners and MRI machines, where the bearings support rotating components with high accuracy. Cross roller bearings are also found in optical instruments like telescopes, camera lenses, and precision measuring instruments, ensuring smooth rotation and precise positioning of optical components.

  • Aerospace and Defense:
  • In the aerospace and defense sectors, cross roller bearings are utilized in critical applications that demand high load capacity, rigidity, and reliability. They are used in aircraft landing gear systems, missile guidance systems, radar antennas, and satellite communication systems. Cross roller bearings are favored for their ability to accommodate both radial and axial loads, making them suitable for aerospace and defense applications with varying load requirements.

  • Industrial Robotics and Material Handling:
  • Cross roller bearings are integral components in industrial robotics and material handling equipment. They are commonly used in articulated robot arms, linear actuators, and conveyor systems. Cross roller bearings enable precise and smooth motion control, supporting heavy loads and withstanding dynamic forces. Their high stiffness and load capacity enhance the reliability and productivity of industrial robots and material handling systems.

  • Scientific and Research Instruments:
  • Cross roller bearings find applications in various scientific and research instruments that require precise positioning and smooth operation. They are used in electron microscopes, spectrometers, telescopes, and other scientific equipment. Cross roller bearings contribute to the stability and accuracy of these instruments, ensuring precise measurements and observations in research and scientific investigations.

In summary, cross roller bearings are specialized roller bearings that offer high load-carrying capacity, rigidity, and precision. They find diverse applications in industries such as robotics and automation, machine tools, medical and optical equipment, aerospace and defense, industrial robotics and material handling, as well as scientific and research instruments. The unique design and performance characteristics of cross roller bearings make them indispensable in industrial sectors that require precise motion control, high load capacity, and compact form factors.

China manufacturer Japan Original CZPT Ra16013uucco Cross Roller Bearing   ball bearingChina manufacturer Japan Original CZPT Ra16013uucco Cross Roller Bearing   ball bearing
editor by CX 2024-04-12