China factory Sr188-Zzee Inch Ball Bearings with Extended Inner Ring ABEC-5 wholesaler

Product Description

Type No. Metric Type Bore Size: 1.50mm up to 12mm
Inch Type Bore Size: 0.0781″ up to 0.75″ 
Flanged Metric Type Bore Size: 1.50mm up to 12mm
Flanged Inch Type Bore Size: 0.0781″ up to 0.75″ 
Materials Inner/Outer Race AISI440C, AISI420
Balls AISI440C, AISI420, Si3N4 Ceramic
Retainer Rivet Cage, Crown Cage, Nylon Cage
Seals/Shields ZZ, ZZS, TTS, 2RS, 2RU
Precision ABEC-1, ABEC-3, ABEC-5, ABEC-7
Vibration & Noise Z1, Z1V1, Z2V1, Z2V2, Z3V3
Lubrication SRL,PS2, B325, SRI#2,  M28, Oil Lube, Dried, etc..

We mainly focuses on stainless steel small-sized ball bearings with full ranges. We’re especially good at the production of Extra-thin bearings, Bearings with flange, Hybrid Ceramic ball bearings, Non-standard bearings and Bearings with Teflon seals.

After decade of experiences to understand bearings and the needs of our clients, we spent much time and achieved enough capability for customized bearings, and continuously develop brilliant solutions for end-users. 

Applications: 
1). fishing equipments
2). hobby models
3). remote radio control products
4). power transmissions
5). medical instruments
6). office appliances, and more…

Q1: Can I get a free sample?
A1: We provide samples free in freight collected. For special samples requirement, please contact us for more details. 
Q2: How could I pay?
A2: We prefer T/T or L/C at sight. If you prefer other payment terms, please contact us freely.
Q3: What is your brand and packing way? Can you produce my brand and packing?
A3: Our brand is SGC and our own packing materials. We can make your brand. For more details, please contact us.
Q4: What is the delivery lead time?
A4: It depends on the order quantities. The mass production lead time is about 45-60 days after receipt of the deposit. 
Q5: Are you manufacturer or  trading company?
A5: We are manufacturer and exporter. We provide all kinds of OEM services for clients around the world.
Q6: Where is your main market?
A6: We export to the North America, Mexico, Australia, South-east Asia, Europe, U.A.E., Turkey, and other countries.

Our Services
1. Professional QC and QA team to make sure all products qualified before shipping.
2. Competitive price.
3 .Standard package to ensure the safe transportation.
4. Professional service.

Why choose us?
1. Production
    Qualified production, competitive price, professional service. 
2. Quality
    All products are inspected 100% before shipment by relative testing equipments.

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Aligning: Non-Aligning Bearing
Separated: Unseparated
Rows Number: Single
Load Direction: Radial Bearing
Materials of Races: AISI440c
Materials of Balls: AISI440c
Samples:
US$ 0/Set
1 Set(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

shielded bearing

Are shielded bearings corrosion-resistant?

Shielded bearings can provide some level of corrosion resistance, but their resistance to corrosion depends on various factors such as the bearing materials, the type of shield used, and the operating conditions. Here’s a detailed explanation of the corrosion resistance of shielded bearings:

1. Bearing materials: The choice of materials used in the construction of shielded bearings can significantly impact their corrosion resistance. Common materials for shielded bearings include stainless steel, chrome steel, and ceramics. Stainless steel bearings are particularly known for their corrosion resistance due to the presence of chromium, which forms a passive oxide layer on the surface, protecting the bearing from corrosive elements. Chrome steel bearings, on the other hand, are less corrosion-resistant and may require additional measures for corrosion protection.

2. Shield type: Shielded bearings are equipped with shields that provide a barrier between the bearing’s internal components and the external environment. Shields can be made of various materials, including metal or non-metallic materials. Metal shields, such as steel or stainless steel, can offer better corrosion resistance compared to non-metallic shields, such as rubber or plastic. Metal shields provide a physical barrier against moisture, contaminants, and corrosive agents, reducing the likelihood of corrosion.

3. Operating conditions: The operating conditions in which shielded bearings are used can influence their corrosion resistance. Factors such as temperature, humidity, exposure to chemicals or corrosive substances, and the presence of water or moisture can contribute to corrosion. In environments with high humidity or exposure to corrosive substances, additional measures, such as proper sealing or the use of corrosion-resistant coatings, may be necessary to enhance the corrosion resistance of shielded bearings.

4. Maintenance and lubrication: Regular maintenance and proper lubrication of shielded bearings can contribute to their corrosion resistance. Lubricants can act as a protective barrier between the bearing surfaces and the surrounding environment, helping to prevent direct contact with corrosive agents. It’s important to use lubricants that are compatible with the bearing materials and provide adequate corrosion protection. Regular inspection and re-lubrication, as recommended by the bearing manufacturer, can help detect and mitigate any corrosion-related issues.

While shielded bearings can offer a certain level of corrosion resistance, it’s important to note that they may not be suitable for highly corrosive environments or applications where corrosion resistance is of utmost importance. In such cases, alternative bearing options, such as sealed or corrosion-resistant bearings, may be more appropriate.

When selecting shielded bearings for applications where corrosion resistance is a concern, it’s recommended to consult with the bearing manufacturer for specific recommendations and to consider factors such as the bearing materials, shield type, and the anticipated operating conditions.

shielded bearing

How do shielded bearings handle radial and axial loads?

Shielded bearings are designed to handle both radial and axial loads, although the specific load capacities may vary depending on the bearing design and size. Here’s a detailed explanation of how shielded bearings handle radial and axial loads:

Radial Loads: Radial loads are forces that act perpendicular to the bearing’s axis, causing it to rotate. Shielded bearings can handle radial loads by distributing the load evenly across the rolling elements, races, and the bearing’s internal structure. The rolling elements, typically balls or rollers, transmit the load from the outer race to the inner race. The races are the ring-like structures that contain the rolling elements and guide their movement. The distribution of the load helps prevent localized stress and ensures that the bearing can support the applied radial load without excessive deformation or premature failure.

The load-carrying capacity of a shielded bearing under radial loads depends on various factors, such as the bearing’s size, design, materials, and the number and size of the rolling elements. Manufacturers provide load ratings for shielded bearings, which indicate the maximum radial load that the bearing can sustain under specific operating conditions. It’s crucial to consider these load ratings and ensure that the applied radial load falls within the recommended limits to prevent bearing failure.

Axial Loads: Axial loads are forces that act parallel to the bearing’s axis, causing it to move in the axial direction. Shielded bearings can handle axial loads to some extent, but their capacity to resist axial loads is generally lower compared to their radial load capacity. The ability of a shielded bearing to handle axial loads depends on its design, including the type of rolling elements and the presence of additional features such as cages or thrust washers.

In applications with predominantly axial loads, specialized bearing designs like thrust bearings or angular contact bearings may be more suitable. These bearings are specifically engineered to handle higher axial loads and provide enhanced axial load-carrying capabilities.

It’s important to note that the load-carrying capacities of shielded bearings may also be influenced by factors such as the speed of rotation, operating temperature, lubrication, and the presence of any external forces or moments acting on the bearing. Therefore, it’s crucial to consult the manufacturer’s specifications and guidelines to determine the appropriate bearing type and size for a given load application.

By understanding the load requirements of your application and selecting the appropriate shielded bearing with sufficient load capacity, you can ensure reliable and efficient operation while minimizing the risk of premature failure or damage to the bearing.

shielded bearing

What are the advantages of using shielded bearings?

Shielded bearings offer several advantages over other types of bearings. Here’s a detailed explanation of the advantages of using shielded bearings:

  • Contamination Protection: One of the main advantages of shielded bearings is their ability to provide protection against contamination. The shields act as a physical barrier, preventing dust, dirt, moisture, and other contaminants from entering the bearing. This helps maintain the cleanliness of the internal components, reducing the risk of premature wear, damage, or failure.
  • Lubrication Retention: Shielded bearings also help retain lubrication within the bearing. The shields help to contain the lubricant and prevent it from escaping or being contaminated by external factors. This ensures that the rolling elements and raceways are adequately lubricated, reducing friction and wear, and promoting smoother operation and extended bearing life.
  • Simplicity and Cost-Effectiveness: Shielded bearings are relatively simple in design, consisting of an outer shield and an inner ring with rolling elements. This simplicity makes them easy to install and maintain. Additionally, shielded bearings tend to be more cost-effective compared to other bearing types, making them suitable for a wide range of applications.
  • Space-Saving: Shielded bearings have a compact design and do not require additional sealing components. This makes them space-saving and allows for more efficient use of available space in various applications and systems.
  • Speed and Temperature Capability: Shielded bearings are capable of operating at high speeds and handling moderate temperature variations. They are designed to provide stable performance and low friction even under demanding operating conditions.
  • Versatility: Shielded bearings are available in a variety of sizes, configurations, and materials to suit different application requirements. They can be used in a wide range of industries and systems, including automotive, industrial machinery, appliances, and more.
  • Easy Replacement: In the event of bearing failure or maintenance requirements, shielded bearings are relatively easy to replace. The shields can be removed to access the internal components for inspection, lubrication, or replacement, simplifying the maintenance process.

It’s important to note that while shielded bearings offer advantages in terms of contamination protection and lubrication retention, they may not provide the same level of sealing effectiveness as sealed bearings or other specialized bearing types. The choice of bearing type should be based on the specific requirements and operating conditions of the application.

By leveraging the advantages of shielded bearings, you can enhance the performance, reliability, and service life of rotating equipment and systems.

China factory Sr188-Zzee Inch Ball Bearings with Extended Inner Ring ABEC-5   wholesalerChina factory Sr188-Zzee Inch Ball Bearings with Extended Inner Ring ABEC-5   wholesaler
editor by CX 2024-02-27

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