Product Description
| Type No. | Metric Type | Bore Size: 1.50mm up to 12mm |
| Inch Type | Bore Size: 0.0781″ up to 0.75″Â | |
| Flanged Metric Type | Bore Size: 1.50mm up to 12mm | |
| Flanged Inch Type | Bore Size: 0.0781″ up to 0.75″Â | |
| 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.Â
Applications:Â
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.Â
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.Â
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.Â
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) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Are shielded bearings suitable for high-speed applications?
Yes, shielded bearings can be suitable for high-speed applications, but their suitability depends on various factors such as the bearing design, materials, and operating conditions. Here’s a detailed explanation of the suitability of shielded bearings for high-speed applications:
Shielded bearings are designed to accommodate a wide range of operating speeds, including high-speed applications. However, it’s important to consider the following factors when determining the suitability of shielded bearings for high-speed use:
- Bearing design: The design of the shielded bearing plays a significant role in its ability to handle high speeds. Factors such as the type of rolling elements (balls or rollers), cage design, and internal clearances affect the bearing’s ability to minimize friction, reduce heat generation, and maintain stability at high speeds. Manufacturers provide specific speed ratings for their shielded bearings, indicating the maximum recommended rotational speed. It’s important to select a shielded bearing with a speed rating that exceeds or matches the operating speed requirements of the application.
- Bearing materials: The materials used in shielded bearings can impact their performance at high speeds. High-quality materials with excellent hardness, dimensional stability, and low friction coefficients are preferred for high-speed applications. Common bearing materials include steel, stainless steel, and ceramics. Ceramic bearings, in particular, are known for their high-speed capabilities due to their low density and superior hardness. Consider choosing a bearing material that is well-suited for the anticipated speed and operating conditions.
- Lubrication: Proper lubrication is critical for high-speed applications. Lubrication helps reduce friction, dissipate heat, and minimize wear between the bearing components. It’s important to select a lubricant that is specifically recommended for high-speed applications and provides adequate lubrication under the anticipated speed and temperature conditions. The lubrication quantity and method should also be optimized to ensure sufficient lubrication without causing excessive drag or overheating.
- Temperature control: High-speed applications can generate significant heat due to increased friction. Adequate temperature control measures, such as proper ventilation, cooling systems, or selecting bearings with heat-resistant materials, may be necessary to prevent excessive temperature rise and potential bearing damage or failure.
- Application-specific considerations: High-speed applications may involve additional factors that need to be considered. For example, the presence of external forces, vibration, or misalignments can affect the performance and stability of the shielded bearing at high speeds. It’s important to evaluate these factors and choose a bearing design that can withstand the specific demands of the application.
By considering these factors and selecting shielded bearings with suitable designs, materials, lubrication, and temperature control measures, you can ensure their reliability and performance in high-speed applications.
What materials are shielded bearings commonly made of?
Shielded bearings are commonly made from various materials to suit different application requirements. Here’s a detailed explanation of the materials that are commonly used to manufacture shielded bearings:
- Steel: Steel is the most commonly used material for manufacturing shielded bearings. High-quality bearing steel, such as chrome steel (52100), is known for its excellent hardness, wear resistance, and load-carrying capacity. Steel bearings are suitable for a wide range of applications and offer good overall performance.
- Stainless Steel: Stainless steel bearings are often used in applications where corrosion resistance is required. The stainless steel used in bearings is typically AISI 440C or similar grades, which contain high levels of chromium and provide excellent resistance to rust and corrosion. Stainless steel bearings are commonly used in industries such as food processing, medical equipment, marine, and chemical.
- Ceramics: Ceramic bearings are gaining popularity due to their exceptional properties. The rolling elements and raceways in ceramic bearings are made from advanced ceramic materials, such as silicon nitride (Si3N4) or zirconia (ZrO2). Ceramic bearings offer advantages like high stiffness, low friction, high temperature resistance, and resistance to corrosion and electrical insulation. They are often used in high-speed applications, high-temperature environments, and industries such as aerospace and semiconductor manufacturing.
- Plastic: Plastic bearings are used in applications that require lightweight, low friction, and resistance to chemicals or moisture. Common plastic materials used for shielded bearings include polyamide (nylon), acetal (POM), and polytetrafluoroethylene (PTFE). Plastic bearings are commonly found in industries such as electronics, automotive, and conveyor systems.
- Hybrid: Hybrid bearings combine the advantages of different materials, typically featuring ceramic rolling elements and steel raceways. These bearings provide benefits such as reduced friction, increased speed capability, improved temperature resistance, and extended service life. Hybrid bearings are used in applications where a balance between performance, reliability, and cost is desired.
The choice of material for shielded bearings depends on factors such as the application requirements, operating conditions (such as load, speed, temperature, and environment), and cost considerations. It’s important to select the appropriate bearing material to ensure optimal performance, reliability, and longevity in a given application.
When sourcing shielded bearings, ensure that the material specifications and properties meet the specific requirements of your application. Consult with bearing manufacturers or suppliers to determine the most suitable material for your needs.
How to properly install a shielded bearing?
Proper installation of a shielded bearing is essential to ensure its optimal performance and longevity. Here’s a detailed explanation of the steps involved in properly installing a shielded bearing:
- Prepare the work area: Start by ensuring that the work area is clean and free from dust, dirt, and other contaminants. This helps minimize the risk of introducing particles into the bearing during installation.
- Inspect the bearing: Before installation, inspect the shielded bearing for any signs of damage or defects. Check the shields for dents, deformations, or loosening. If any issues are found, replace the bearing with a new one to ensure proper functioning.
- Handle the bearing with care: Handle the shielded bearing with clean hands or gloves to prevent the transfer of contaminants. Avoid dropping or impacting the bearing, as it can cause damage to the shields or internal components.
- Align the bearing: Position the shielded bearing in the correct orientation and align it with the shaft or housing. Ensure that the bearing fits securely and accurately into the designated location.
- Apply a suitable lubricant: Before installation, apply an appropriate lubricant to the bearing’s internal components. The lubricant helps reduce friction and wear during operation. Follow the manufacturer’s recommendations for the type and amount of lubricant to be used.
- Install the bearing: Gently press the shielded bearing onto the shaft or into the housing using a suitable installation tool. Apply even pressure to ensure the bearing seats properly. Avoid excessive force, as it can damage the shields or distort the bearing’s internal components.
- Verify the proper fit: After installation, check the bearing to ensure that it is seated correctly and securely. Rotate the bearing by hand to confirm smooth movement and proper alignment.
- Secure the bearing: If applicable, install any locking devices, such as retaining rings or locknuts, to secure the shielded bearing in place. Follow the manufacturer’s instructions for the specific locking mechanism being used.
- Perform final checks: Once the bearing is installed, inspect it again for any signs of damage or misalignment. Ensure that the shields are securely in place and provide adequate coverage to the rolling elements and raceways.
- Document the installation: Keep a record of the bearing installation, including the date, part number, and any relevant details. This information can be useful for future maintenance or replacement purposes.
It’s important to note that the installation process may vary depending on the specific application, bearing type, and manufacturer’s recommendations. Always refer to the manufacturer’s instructions and guidelines for the proper installation of the shielded bearing.
By following these steps and taking the necessary precautions, you can ensure the proper installation of a shielded bearing, promoting its performance, reliability, and service life.
editor by CX 2024-03-03