Product Description

Please see details for  slewing ring bearing
162.45.2240.890.11.1503
162.45.2240.891.41.1503
162.45.2366.890.11.1503
162.45.2366.891.41.1503
if you need more details, please feel free to contact us for designing and producing

Why choose CZPT slewing bearings
Who we are?
We (HangZhou CZPT special heavy-duty and large bearing manufacturing CO., LTD) are a professional
bearing manufacturer in the world, established in 2000, specializing in slewing bearings, slewing drives
and special bearings, with design, production, sales, marketing and service from OD200mm to 8000mm.
For 18 years experiences, our bearings have flied to more than 50 countries.

Our technical team:
We have 60 employees, with 6 experienced engineers and professional technicists.
All our bearings are designed by CAD-programs, made according to customers’ special demands.
Our technical team can also verify safety & reliability depending on the load case and the strength of raceway
as well as gear and bolt connections.

Manufacturing:
Equipped with advanced manufacturing equipments and test instruments, all bearings are of uniform marking
and packing with superior quality, reasonable prices and perfect services.

Quality:
We have been certificated by ISO9001:2008, and we are also aligned to international quality standards
from application consulting and engineering to productions, examinations, documentations and dispatch.
We will prepare additional test reports if customers need.

Detailed description of these types slewing bearings

Single row 4 point contact ball slewing bearings
     This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
     This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter slewing bearings
     This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Triple row cylindrical roller slewing bearings
     This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
     This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.

Main Types:
Single row ball slewing ring bearings
Double row ball slewing ring bearings
Crossed roller slewing ring bearing
Three row cylindrical roller slewing bearings
BALL & ROLLER combined slewing bearings
Flanged slewing ring bearing
Gear Type:
Slewing bearings with external gear
Slewing bearings with internal gear
Slew bearings without gear
Flange type:
Slewing bearings with external flange and internal gear
Slew rings with internal flange and external gear
Slew bearings with external and internal flange

About CZPT bearings
1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 60
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate
All CZPT slew rings can betested by the 3 rd party inspection organization if customer requires, such as BV, CCS, SGS, LR, ABS and so on. All swing bearings inspection reports will be supplied to customers, including raw material certificate, heat treatment certificate, UT&PT and so on.
6. Annual Exportation: 8 million USD
7. Warranty Period: All CZPT slewing ring bearings have a warranty period of 18 months, for some special working condition, warranty period can be lengthened to 3-4 years.
8. Production Time: All CZPT slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.

Production Process of CZPT slewing bearings
All CZPT slewing ring bearings are forged rings with material steel 50Mn or 42CrMo, slewing rings are machined by CNC lathe, slew bearings raceway are quenched via medium-frequency hardening with hardness 55-60HRC, turntable bearings are drilled holes by CNC drilling machine, slew gears are machined by hobbing machine with gear quenched if required, swing bearings then are grinded by grinding machine with higher precision.

LYHY Slewing Bearing Packing 
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers  demand to be packed;

LYHY slewing ring bearings can be packed by different ways.
If bearing diameter is less than 2300mm, slewing rings will be usually packed by square plywood case.
If bearing diameter is more than 2300mm, slewing rings can be packed by square plywood case, round plywood case, or steel tripod. Every package way can be totally kept goods safely.

Transportation:
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

Bearing with external gear
 

161.16.0400.890.11.1503 161.16.0400.891.21.1503 161.16.0450.890.11.1503
161.16.0450.891.21.1503 161.16.0560.890.11.1503 161.16.0560.891.21.1503
161.16.0630.890.11.1503 161.16.0630.891.21.1503 161.20.0450.890.11.1503
161.20.0450.891.21.1503 161.20.0560.890.11.1503 161.20.0560.891.21.1503
161.20.0630.890.11.1503 161.20.0630.891.21.1503 161.20.571.890.11.1503
161.20.571.891.21.1503 161.25.0764.890.11.1503 161.25.0764.891.21.1503
161.25. 0571 .890.11.1503 161.25. 0571 .891.21.1503 161.25.0980.890.11.1503
161.25.0980.891.21.1503 161.25.1077.890.11.1503 161.25.1077.891.21.1503
161.25.1120.890.11.1503 161.25.1120.891.21.1503 161.25.1180.890.11.1503
161.25.1180.891.21.1503 161.25.1250.890.11.1503 161.25.1250.891.21.1503
161.25.1320.890.11.1503 161.25.1320.891.21.1503 161.28.1400.890.11.1503
161.28.1400.891.21.1503 161.28.1500.890.11.1503 161.28.1500.891.21.1503
161.28.1600.890.11.1503 161.28.1600.891.21.1503 161.28.1700.890.11.1503
161.28.1700.891.21.1503 161.36.1700.890.11.1503 161.36.1700.891.41.1503
161.36.1800.890.11.1503 161.36.1800.891.41.1503 161.36.1900.890.11.1503
161.36.1900.891.41.1503 161.36.2000.890.11.1503 161.36.2000.891.41.1503
161.40.2000.890.11.1503 161.40.2000.891.41.1503 161.40.2128.890.11.1503
161.40.2128.891.41.1503 161.40.2240.890.11.1503 161.40.2240.891.41.1503
161.40.2368.890.11.1503 161.40.2368.891.41.1503 161.45.2240.890.11.1503
161.45.2240.891.41.1503 161.45.2366.890.11.1503 161.45.2366.891.41.1503
161.45.2510.890.11.1503 161.45.2510.891.41.1503 161.45.2654.890.11.1503
161.45.2654.891.41.1503 161.50.2800.891.41.1503 161.50.2660.891.41.1503
161.50.2800.891.41.1503 161.50.3000.891.41.1503  

Bearing with internal gear

162.16.0400.890.11.1503 162.16.0400.891.21.1503 162.16.0450.890.11.1503
162.16.0450.891.21.1503 162.16.0560.890.11.1503 162.16.0560.891.21.1503
162.16.0630.890.11.1503 162.16.0630.891.21.1503 162.20.0450.890.11.1503
162.20.0450.891.21.1503 162.20.0560.890.11.1503 162.20.0560.891.21.1503
162.20.0630.890.11.1503 162.20.0630.891.21.1503 162.20.571.890.11.1503
162.20.571.891.21.1503 162.25.0764.890.11.1503 162.25.0764.891.21.1503
162.25. 0571 .890.11.1503 162.25. 0571 .891.21.1503 162.25.0980.890.11.1503
162.25.0980.891.21.1503 162.25.1077.890.11.1503 162.25.1077.891.21.1503
162.25.1120.890.11.1503 162.25.1120.891.21.1503 162.25.1180.890.11.1503
162.25.1180.891.21.1503 162.25.1250.890.11.1503 162.25.1250.891.21.1503
162.25.1320.890.11.1503 162.25.1320.891.21.1503 162.28.1400.890.11.1503
162.28.1400.891.21.1503 162.28.1500.890.11.1503 162.28.1500.891.21.1503
162.28.1600.890.11.1503 162.28.1600.891.21.1503 162.28.1700.890.11.1503
162.28.1700.891.21.1503 162.36.1700.890.11.1503 162.36.1700.891.41.1503
162.36.1800.890.11.1503 162.36.1800.891.41.1503 162.36.1900.890.11.1503
162.36.1900.891.41.1503 162.36.2000.890.11.1503 162.36.2000.891.41.1503
162.40.2000.890.11.1503 162.40.2000.891.41.1503 162.40.2128.890.11.1503
162.40.2128.891.41.1503 162.40.2240.890.11.1503 162.40.2240.891.41.1503
162.40.2368.890.11.1503 162.40.2368.891.41.1503 162.45.2240.890.11.1503
162.45.2240.891.41.1503 162.45.2366.890.11.1503 162.45.2366.891.41.1503
162.45.2510.890.11.1503 162.45.2510.891.41.1503 162.45.2654.890.11.1503
162.45.2654.891.41.1503 162.50.2800.891.41.1503 162.50.2660.891.41.1503
162.50.2800.891.41.1503 162.50.3000.891.41.1503  

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Standard or Nonstandard: Standard
Feature: Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: Bearing Steel
Samples:
US$ 2500/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

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

Can you explain the role of preloading in optimizing the performance of cross roller bearings?

Preloading plays a crucial role in optimizing the performance of cross roller bearings. It involves applying a controlled axial force to the bearing to eliminate internal clearance and ensure proper contact between the rolling elements and raceways. Preloading offers several benefits that enhance the performance of cross roller bearings:

  • Increased Stiffness:
  • Preloading significantly increases the stiffness of the bearing system. By eliminating internal clearance, it minimizes the play or deflection between the rolling elements and raceways. This increased stiffness improves the rigidity of the bearing, allowing it to resist deformations and maintain precise positioning and alignment. The increased stiffness is particularly advantageous in applications that require high precision and stability, such as machine tools or robotic systems.

  • Reduced Elastic Deformation:
  • Preloading helps reduce elastic deformation within the bearing under load. When a load is applied to a bearing, elastic deformation can occur, resulting in a temporary change in the internal clearance. This can lead to inaccuracies in positioning and decreased performance. By applying preloading, the bearing is already under some initial load, reducing the elastic deformation when additional loads are applied. This minimizes the change in internal clearance, enhancing the accuracy and repeatability of the bearing system.

  • Improved Axial and Radial Stiffness:
  • Preloading enhances both the axial and radial stiffness of cross roller bearings. It improves the resistance to both axial and radial loads, ensuring better load distribution and load-carrying capacity. The increased stiffness helps to maintain the integrity of the bearing structure and minimize deflections or deformations, even under high loads or dynamic operating conditions. This results in improved performance, reduced vibration, and enhanced overall system stability.

  • Elimination of Clearance-Related Issues:
  • Preloading eliminates clearance-related issues that can affect the performance of cross roller bearings. Internal clearance in bearings can lead to backlash, which is undesirable in applications requiring precise motion control. Backlash can result in inaccuracies, positioning errors, and reduced responsiveness. By applying preloading, the clearance is eliminated, ensuring immediate and precise response to input forces or motion commands. This is crucial in applications such as robotics, where precise positioning and control are critical.

  • Enhanced System Rigidity:
  • By optimizing the stiffness and eliminating clearance, preloading enhances the overall rigidity of the bearing system. This increased rigidity improves the system’s ability to resist external disturbances, such as vibrations or shocks. It helps maintain the desired positioning and alignment of components, ensuring stability and accuracy. The enhanced system rigidity contributes to improved overall performance and reliability of the application.

  • Compensation for Wear:
  • Over time, normal wear and tear can lead to a slight increase in internal clearance in bearings. By applying preloading, the initial clearance is reduced, compensating for any potential wear. This helps to maintain the desired performance and accuracy of the bearing system even as it ages. Preloading can extend the effective service life of cross roller bearings by compensating for wear-related changes in internal clearance.

In summary, preloading plays a vital role in optimizing the performance of cross roller bearings. It increases stiffness, reduces elastic deformation, improves axial and radial stiffness, eliminates clearance-related issues, enhances system rigidity, and compensates for wear. By applying preloading, the bearing system achieves higher precision, better load distribution, improved stability, and increased reliability. It is essential to carefully determine and apply the appropriate preloading force based on the specific application requirements to achieve the desired performance benefits.

cross roller bearing

What advantages do cross roller bearings offer compared to other bearing types?

Cross roller bearings offer several advantages compared to other bearing types. Their unique design and configuration provide distinct benefits, making them preferred choices in various applications. Here are the advantages of cross roller bearings over other bearing types:

  • High Load Capacity:
  • Cross roller bearings can handle both radial and axial loads simultaneously, allowing them to support high load capacities. The arrangement of cylindrical rollers in a cross pattern enables efficient load distribution, resulting in improved load-carrying capacity compared to other bearing types. This makes cross roller bearings suitable for applications that require high load-carrying capability without sacrificing precision.

  • Space-Saving Design:
  • One of the significant advantages of cross roller bearings is their compact and space-saving design. The arrangement of rollers at right angles to each other and the thin-walled rings contribute to a slim profile. This compact design allows for efficient use of available space in applications where installation space is limited. Cross roller bearings are particularly advantageous in equipment and machinery where size and weight reduction are crucial factors.

  • High Rigidity:
  • Compared to other bearing types, cross roller bearings offer exceptional rigidity. The cross arrangement of rollers and the preloading of the bearing contribute to increased stiffness and resistance to deformation. This high rigidity ensures precise positioning and minimizes deflection under load, making cross roller bearings suitable for applications that demand high accuracy and stability, such as precision machining, robotics, and optical instruments.

  • Precision and Accuracy:
  • Cross roller bearings are known for their excellent rotational accuracy and precise motion control. The arrangement of rollers and the low-friction design result in minimal clearance and backlash, enabling precise positioning and smooth operation. This makes cross roller bearings ideal for applications that require high precision, such as machine tools, robotics, and scientific instruments.

  • Moment Load Capability:
  • Due to their unique design, cross roller bearings offer exceptional moment load-carrying capability. They can handle both radial and axial moments, making them suitable for applications with complex loads. The ability to withstand moments enables cross roller bearings to support rotational movements and resist forces acting perpendicular to the bearing axis. This makes them advantageous in applications such as robotics, rotary tables, and indexing heads.

  • Reduced Friction and Wear:
  • Cross roller bearings exhibit low friction and wear characteristics. The rolling motion of cylindrical rollers reduces sliding friction, resulting in improved efficiency and reduced heat generation. Additionally, the use of high-quality materials and advanced lubrication techniques further minimizes friction and wear, contributing to extended bearing life and reduced maintenance requirements.

In summary, cross roller bearings offer distinct advantages compared to other bearing types. Their high load capacity, space-saving design, high rigidity, precision and accuracy, moment load capability, as well as reduced friction and wear make them preferred choices in various applications. Whether it’s in robotics, machine tools, medical equipment, or scientific instruments, the unique performance characteristics of cross roller bearings contribute to enhanced performance, reliability, and efficiency in numerous industrial sectors.

China best Inner Gear Teeth Slewing Ring Bearing 162.45.2240 Cross Roller Swing Bearing 162.45.2366   bearing airChina best Inner Gear Teeth Slewing Ring Bearing 162.45.2240 Cross Roller Swing Bearing 162.45.2366   bearing air
editor by CX 2024-04-03