Product Description

Welcome to HangZhou XIHU (WEST LAKE) DIS. FLIGHT SEIKO MACHINERY CO.,LTD !
We offer a wide variety of precision machining capabilities including high quality precision machined parts,
Mechanical assemblies,and cutom fabrication for automobile,textile machinery,construction machinery etc.
Our manufacturing and process capabilities are ISO9000 Certified.
 

Flexible thin section bearing realizes the extremely thin bearing section, and also realizes the miniaturization and lightweight of the products. The variety of products expands its application range. It is generally divided into rubber seal-rs, iron seal-zz, plane, iron card-k, copper card-m.

 

Characteristic of flexible thin section bearing

Designation

Size

Shoulder dimension

Basic Load rating

Quality

Model

d

D

Dpw

B

rmin

ds  Dh

Cr
kN

Cor
kN

Kg

RU28

10 52 27.3 8 0.3 24 29.5 29 24 0.12

RU42

20 70 41.5 12 0.6 37 47 7.35 8.35 0.29

RU66

35 95 66 15 0.6 59 74 17.5 22.3 0.62

RU85

55 120 85 15 0.6 79 93 20.3 29.5 1

RU124(G)
RU124X

80 165 124 22 1 114 134 33.1 50.9 2.6

RU148(G)
RU148X

90 210 148 25 1.5 133 162 49.1 76.8 4.9

RU178(G)
RU178X

115 240 178 28 1.5 161 195 80.3 135 6.8

RU228(G)
RU228X

160 295 227.5 35 2 208 246 104 173 11.4
RU297(G)
RU297X
210 380 297.3 40 2.5 272 320 156 281 21.3
RU445(G)
RU445X
350 540 445.4 45 2.5 417 473 222 473 3504

Custom size requirement are also available

 

Our advantage:
1.The original 100% factory, more than 10 years’ production experience
2.Produce and process products according to your drawings and requirement.
3.All kinds of surface treatment available,such as anodizing,power coating,painting,polishing and etc.
4.Our professional R&D and QC team can strictily control the product quality to meet your requirement.
5.Our products are of high quality at cheap price,and delivered on time.
 

Manufacturing strength & Vehicle processing line

1.Professional operators

2.Adopting advanced CNC machine tools in Japan

3.Totally enclosed production workshop

4.Experienced managers

5.Digital control production line

6.Advanced level of technology

 

 

Production Detection

1.Complete testing facilities

2.Perfect measurement methods

3.Perfect production detection methods

4.Strong QC team,conduct comprehensive quality control
 

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Standard or Nonstandard: Customized
Sealing Gland: Customized
Rolling-Element Number: Customized
Roller Type: Customized
Material: Customized
Type: Customized
Samples:
US$ 0/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

cross roller bearing

What are the challenges and solutions for managing complex loads and rotational accuracy in cross roller bearings?

Managing complex loads and maintaining rotational accuracy are crucial challenges in cross roller bearings. These bearings often encounter demanding operating conditions that require effective solutions to ensure optimal performance.

  • Challenges:
  • 1. Complex Loads: Cross roller bearings may experience a combination of radial, axial, and moment loads. These loads can vary in magnitude, direction, and frequency, posing challenges in distributing the loads evenly across the bearing structure and minimizing stress concentrations.

    2. Rotational Accuracy: Maintaining precise rotational accuracy is essential in applications where accurate positioning, motion control, and alignment are critical. Factors such as manufacturing tolerances, bearing clearance, and external disturbances can affect the rotational accuracy of cross roller bearings.

  • Solutions:
  • 1. Optimized Bearing Design: Cross roller bearings are designed with specific load capacities and rigidity to handle complex loads. Manufacturers optimize the bearing’s internal geometry, material selection, and heat treatment processes to enhance load distribution and minimize stress concentrations. This enables the bearing to withstand varying loads and maintain structural integrity.

    2. Precision Manufacturing: Achieving high rotational accuracy starts with precision manufacturing processes. Tight manufacturing tolerances and stringent quality control measures help ensure consistent dimensions and geometries of the bearing components. This minimizes variations and deviations that can impact rotational accuracy.

    3. Preload and Clearance Adjustment: Proper preload and clearance adjustment are crucial for managing complex loads and maintaining rotational accuracy. Preload, achieved through controlled axial displacement or the use of spacers, eliminates internal clearance and enhances rigidity, reducing the effects of external forces. Careful adjustment of clearance ensures smooth operation while minimizing excessive play and maintaining accuracy.

    4. Lubrication: Lubrication plays a vital role in managing complex loads and rotational accuracy. Appropriate lubrication reduces friction, minimizes wear, and dissipates heat generated during operation. The selection of the right lubricant, based on operating conditions and load requirements, ensures smooth rotation and helps maintain accuracy over extended periods.

    5. Sealing and Contamination Control: Proper sealing and contamination control measures are essential for protecting cross roller bearings from external contaminants such as dust, dirt, and moisture. Seals and shields prevent ingress of harmful particles, maintaining the integrity of the bearing surfaces and minimizing wear that can affect rotational accuracy.

    6. Mounting and Alignment: Accurate mounting and alignment of cross roller bearings are critical for achieving optimal performance. Careful attention should be given to the mounting surfaces, ensuring flatness and perpendicularity, to minimize misalignment and stress concentrations that can impact load distribution and rotational accuracy.

In summary, managing complex loads and rotational accuracy in cross roller bearings requires optimized bearing design, precision manufacturing, proper preload and clearance adjustment, appropriate lubrication, sealing and contamination control, as well as accurate mounting and alignment. By addressing these challenges and implementing effective solutions, cross roller bearings can deliver reliable and precise performance in a wide range of applications.

cross roller bearing

What considerations are important when selecting the appropriate size and material for a cross roller bearing?

When selecting the appropriate size and material for a cross roller bearing, several considerations are crucial to ensure optimal performance and longevity. The following factors should be taken into account:

  • Load Requirements:
  • Determine the expected load that the bearing will need to support. Consider both the magnitude and direction of the load, including radial, axial, and moment loads. Cross roller bearings are known for their high load capacity in all directions, but it is important to select a size and material that can handle the specific load requirements of the application.

  • Space Limitations:
  • Consider the available space for the bearing within the application. Cross roller bearings have a compact design, but it is essential to choose a size that fits within the allotted space while allowing for proper clearance and mounting considerations. Take into account the dimensions of the bearing, including inner and outer diameters, width, and overall profile.

  • Rotational Speed:
  • Determine the rotational speed at which the bearing will operate. Different materials and designs have specific limitations on rotational speed due to factors such as heat generation, lubrication requirements, and the potential for dynamic effects like centrifugal forces. Select a bearing size and material that can safely accommodate the anticipated rotational speed without compromising performance or causing premature wear.

  • Accuracy and Precision:
  • Consider the required level of accuracy and precision for the application. Cross roller bearings are known for their excellent positioning accuracy and low friction characteristics. However, different designs and materials may offer varying levels of precision. Determine the specific tolerance and precision requirements of the application and select a bearing that can meet those criteria.

  • Environmental Conditions:
  • Evaluate the environmental conditions in which the bearing will operate. Factors such as temperature, humidity, exposure to chemicals or corrosive substances, and the presence of contaminants can influence the choice of bearing material. Select a material that can withstand the specific environmental conditions of the application to ensure optimal performance and longevity.

  • Maintenance and Service Life:
  • Consider the desired maintenance requirements and service life expectations. Some bearing materials may require more frequent lubrication or maintenance than others. Additionally, different materials and designs have varying levels of durability and service life. Assess the maintenance capabilities and resources available and select a bearing that aligns with the desired maintenance schedule and service life requirements.

  • Budget and Cost:
  • Take into account the budget and cost considerations. Different bearing sizes and materials may have varying price points. Balance the desired performance and longevity with the available budget to select a bearing that offers the best value for the specific application.

By carefully considering these factors, it is possible to select the appropriate size and material for a cross roller bearing that meets the specific requirements of the application. Choosing the right bearing will help optimize performance, ensure reliability, and extend the service life of the bearing in the given application.

cross roller bearing

What factors should be considered when selecting a cross roller bearing for a specific application?

When selecting a cross roller bearing for a specific application, several factors need to be carefully considered. These factors ensure that the chosen bearing meets the requirements of the application in terms of performance, reliability, and longevity. Here are the key factors to consider when selecting a cross roller bearing:

  • Load Requirements:
  • First and foremost, the load requirements of the application must be assessed. Consider the magnitude and direction of the loads, including radial, axial, and moment loads. Determine the maximum load capacity needed and ensure that the selected cross roller bearing can handle the anticipated loads without excessive deflection or premature failure.

  • Precision and Accuracy:
  • If the application requires precise positioning or motion control, the level of required precision and accuracy should be evaluated. Cross roller bearings are known for their excellent rotational accuracy, but the specific requirements of the application should be matched with the bearing’s precision level. Consider factors such as the permissible deviation, repeatability, and smoothness of operation.

  • Space Limitations:
  • Assess the available installation space in the application. Cross roller bearings are compact and space-saving, making them suitable for applications with limited space. Measure the dimensions and ensure that the selected bearing can be accommodated without interference or compromising other components.

  • Environmental Conditions:
  • Consider the environmental conditions in which the cross roller bearing will operate. Evaluate factors such as temperature, humidity, dust, chemicals, and potential exposure to contaminants. Choose a bearing that is designed to withstand the specific environmental conditions to ensure optimal performance and longevity.

  • Speed and Acceleration:
  • Assess the required speed and acceleration parameters of the application. Cross roller bearings have speed limitations, and exceeding these limits can lead to increased friction, heat generation, and premature wear. Consider the rotational speed and acceleration requirements and select a bearing that can operate within the desired speed range without compromising performance or reliability.

  • Mounting and Integration:
  • Consider the mounting and integration aspects of the cross roller bearing. Evaluate the mounting method, available space for mounting components, and the overall system design. Ensure that the selected bearing can be easily integrated into the application with appropriate mounting options and compatibility with other system components.

  • Maintenance and Service Life:
  • Assess the maintenance requirements and expected service life of the cross roller bearing. Consider factors such as lubrication needs, accessibility for maintenance, and the desired operating lifespan. Choose a bearing that aligns with the maintenance capabilities and longevity expectations of the application.

  • Cost and Availability:
  • Evaluate the cost-effectiveness and availability of the cross roller bearing. Consider the budget constraints of the application and compare the pricing of different bearing options. Additionally, ensure that the selected bearing is readily available from reliable suppliers to avoid delays or difficulties in sourcing replacements or spare parts.

By carefully considering these factors, it is possible to select the most suitable cross roller bearing for a specific application. Taking into account the load requirements, precision needs, space limitations, environmental conditions, speed and acceleration parameters, mounting considerations, maintenance requirements, and cost-effectiveness ensures that the chosen bearing will deliver optimal performance, reliability, and longevity in the intended application.

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editor by CX 2024-02-16