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440 Stainless Steel Self Aligning Ball Bearings
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440 Stainless Steel Self Aligning Ball Bearings

Material 440 Stainless Steel
Bearing Type Flanged Bearing
Inner Diameter (ID) 3mm - 9mm (depending on series and model)
Outer Diameter (OD) 6mm - 24mm (depending on series and model)
Width (W) 2mm - 7mm (depending on series and model)
Load Rating High radial and axial load capacity
Friction Coefficient Low friction for smooth rotation
Temperature Range -20°C to +120°C
Lubrication Type Pre-lubricated or greased (depending on model)
Seals Open, shielded, or sealed options
Flange Diameter 30mm - 100mm (depending on model)

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The 440 Stainless Steel Bearings Flange Series are designed for applications where stability, alignment, and robust load capacity are critical. These bearings are made from 440 stainless steel, offering excellent corrosion resistance and durability. The flange design provides additional support and a secure mounting mechanism, making them ideal for heavy-duty applications that require high precision, high load capacity, and resistance to harsh environments.

The flange configuration allows for easy mounting and ensures that the bearing stays in place during operation, making it a versatile solution for industrial machinery, automotive applications, and other sectors where reliability is essential.

 

 

 

 

 

 

 

 

Bearing
Number		 Bore
(mm)		 Outside
Diameter
(mm)		 Width
(mm)		 Flange Dimensions
(mm)		 Basic Load Rating
lbs
open enclosed
d D Df B B1 C1      C2 Dynamic
   Cr
SMF63 3 6 7.2 2 2.5 0.6 0.6 35 14
SF683 3 7 8.1 2 3 0.5 0.8 66 29
SMF83 3 8 9.2 2.5 – 0.6 一 64 24
SF693 3 8 9.5 3 4 0.7 0.9 64 24
SMF93 3 9 10.2* 2.5 4 0.6 0.8 99 42
SF603 3 9 10.5 3 0.7 99 42
SF623 3 10 11.5 4 4 1 1 99 42
SMF74 4 7 8.2 2 2.5 0.6 0.6 58 25
SMF84 4 8 9.2 2 3 0.6 0.6 88 33
SF684 4 9 10.3 2.5 4 0.6 1 99 42
SMF104 4 10 11.2* 3 4 0.6 0.8 99 42
SF694 4 11 12.5 4 4 1 1 123 57
SF604 4 12 13.5 4 4 1 1 167 77
SF624 4 13 15 5 5 1 1 224 108
SF634 4 16 18 5 5 1 1 300 140
SMF85 5 8 9.2 2 2.5 0.6 0.6 62 31
SMF95 5 9 10.2 2.5 3 0.6 0.6 112 46
SMF105 5 10 11.6 3 4 0.6 0.8 115 55
SMF115 5 11 12.6 4 – 0.8 123 57
SF685 5 11 12.5 3 5 0.8 1 123 57
SF695 5 13 15 4 4 1 1 187 90
SF605 5 14 16 5 5 1 1 229 110
SF625 5 16 18 5 5 1 1 300 140
SF635 5 19 22 6 6 1.5 1.5 400 190
SMF106 6 10 11.2 2.5 3 0.6 0.6 123 57
SMF126 6 12 13.2* 3 4 0.6 0.8 187 82
SF686 6 13 15 3.5 5 1 1.1 187 90
SF696 6 15 17 5 5 1.2 1.2 300 140
SF606 6 17 19 6 6 1.2 1.2 300 140
SF626 6 19 22 6 6 1.5 1.5 400 190
SMF117 7 11 12.2 2.5 3 0.6 0.6 101 46
SMF137 7 13 14.2° 3 4 0.6 0.8 198 88
SF687 7 14 16 3.5 5 1 1.1 202 103
SF697 7 17 19 5 5 1.2 1.2 235 120
SF607 7 19 22 6 6 1.5 1.5 385 180
SF627 7 22 25 7 7 1.5 1.5 580 290
SMF128 8 12 13.2° 2.5 3.5 0.6 0.8 115 57
SMF148 8 14 15.6 3.5 4 0.8 0.8 198 88
SF688 8 16 18 4 5 1 1.1 310 160
SF698 8 19 22 6 6 1.5 1.5 285 145
SF608 8 22 25 7 7 1.5 1.5 580 290
SF689 9 17 19 4 5 1 1.1 310 143
SF699 9 20 23 6 6 1.5 1.5 528 231
SF609 9 24 27 7 7 1.5 1.5 580 280

 

Key Features of 440 Stainless Steel Bearings Flange Series

  1. Flanged Design for Easy Mounting
    • The flange series features an integrated flange that makes it easy to mount the bearing securely, ensuring alignment and preventing axial movement during operation.
  2. Superior Corrosion Resistance
    • Manufactured from 440 stainless steel, these bearings provide excellent resistance to rust, corrosion, and oxidation, making them suitable for use in moisture-rich or chemically aggressive environments.
  3. High Load Capacity
    • Designed to handle both radial and axial loads, the Flange Series bearings offer a high load-bearing capacity, ensuring reliable performance in demanding applications.
  4. Low Friction for Smooth Operation
    • With a low-friction design, these bearings offer smooth and efficient operation, helping to reduce energy consumption and extend the lifespan of machinery.
  5. Durability and Longevity
    • Built to withstand the stresses of high-speed and heavy-duty operations, these bearings are durable and require minimal maintenance, offering long-lasting service in a wide range of industrial settings.
  6. Versatile Applications
    • The flange series bearings are highly versatile and can be used in numerous applications, including automotive, robotics, agricultural machinery, and more.

Applications of 440 Stainless Steel Bearings Flange Series

  1. Industrial Machinery
    • Perfect for use in industrial applications, including conveyors, mixers, gearboxes, and motors, where stability, alignment, and high load capacity are crucial.
  2. Automotive Industry
    • Commonly used in automotive applications such as wheel hubs, chassis, and suspension systems, where bearings need to withstand high loads and operate reliably under harsh conditions.
  3. Agricultural Machinery
    • Suitable for agricultural equipment such as tractors, harvesters, and irrigation systems, where reliability and durability are key in demanding environments.
  4. Robotics and Automation
    • The flange design provides additional stability, making it ideal for use in robotic systems, CNC machines, and automated equipment that require precise alignment and low-maintenance performance.
  5. Marine Applications
    • Resistant to corrosion, these bearings are ideal for use in marine environments, such as in boats, pumps, and winches, where exposure to saltwater and moisture is frequent.
  6. Food Processing
    • Used in food processing machinery where hygiene, corrosion resistance, and reliability are essential for operational efficiency and product safety.

1. Premium Quality Materials

We use top-grade ceramic materials like Zirconia (ZrO2) and Silicon Nitride (Si3N4) to ensure our bearings offer superior durability, wear resistance, and performance.

2. Tailored Solutions

Our team works closely with you to provide customized bearing solutions that perfectly meet the needs of your industry, whether in packaging, renewable energy, or other specialized fields.

3. Industry Expertise

With years of experience serving diverse industries, we understand the unique challenges of high-performance applications and consistently deliver reliable solutions.

4. Precision Engineering

Our ceramic bearings are manufactured with state-of-the-art technology to achieve unmatched precision and efficiency, ensuring smooth operation and extended lifespan.

5. Competitive Pricing

We combine high quality with cost-effective pricing, offering excellent value to our clients without compromising on performance.

6. Fast Delivery & Global Reach

Our streamlined logistics and global network ensure timely delivery, no matter where you are.

7. Exceptional Support

Our dedicated team is available to assist you every step of the way—from initial inquiry to after-sales service—ensuring a hassle-free experience.

1. What are ceramic bearings?

Ceramic bearings are bearings made from advanced ceramic materials such as Zirconia (ZrO2) or Silicon Nitride (Si3N4). They are known for their high strength, wear resistance, and ability to perform in extreme conditions.

2. What are the advantages of ceramic bearings over steel bearings?

Ceramic bearings offer several advantages, including:

  • Higher Durability: Resistant to wear, corrosion, and high temperatures.
  • Lighter Weight: Up to 40% lighter than steel bearings.
  • Non-Magnetic & Electrically Insulating: Ideal for sensitive applications.
  • Low Friction: Reduces energy loss and heat generation.

3. In which industries are ceramic bearings commonly used?

Ceramic bearings are widely used in:

  • Packaging equipment
  • Renewable energy (e.g., wind turbines)
  • Aerospace and automotive
  • Medical devices
  • Chemical processing
  • High-precision tools

4. Can ceramic bearings handle high temperatures?

Yes, ceramic bearings are highly resistant to heat and can operate in temperatures exceeding 1,000°C, depending on the material used.

5. Are ceramic bearings suitable for corrosive environments?

Absolutely! Ceramic bearings are non-reactive to most chemicals, making them ideal for use in highly corrosive environments.

6. What is the lifespan of ceramic bearings?

Ceramic bearings typically last much longer than steel bearings due to their wear resistance and durability. However, the exact lifespan depends on the operating conditions and maintenance practices.

7. How do I maintain ceramic bearings?

Ceramic bearings require minimal maintenance, but to ensure longevity:

  • Use the correct lubrication when necessary.
  • Keep them clean and free from contaminants.
  • Follow proper installation procedures.

8. Do you provide customized ceramic bearings?

Yes, we offer tailored ceramic bearing solutions to meet your specific application requirements. Contact us to discuss your needs.

9. What sizes and types of ceramic bearings do you offer?

We supply a wide range of sizes and configurations, including ball bearings, roller bearings, and hybrid bearings. Check our product catalog or contact us for more details.

10. How can I place an order or request a quote?

Simply visit our Contact Us page, fill out the inquiry form, or reach out to us directly via email or phone. Our team will respond promptly with the information you need.

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