6703zz bearings

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

The 6703ZZ bearing is a miniature deep groove ball bearing with double-sided rubber seals, which are identified by the "ZZ" suffix in the part number. Here is a detailed introduction in English:

1. Design and Features:

• The 6703ZZ bearing is a single-row deep groove ball bearing with a compact design suitable for applications requiring high speeds and low friction.

• The "ZZ" designation indicates that the bearing has two rubber seals on both sides, which help to retain lubricant within the bearing and prevent contaminants from entering, thus extending the bearing's service life and reducing maintenance requirements.

2. Dimensions and Specifications:

• Inner Diameter (d): 17 mm

• Outer Diameter (D): 35 mm

• Width (B): 8 mm

• Dynamic Load Rating (Cr): 4.95 kN (Metric)

• Static Load Rating (C0r): 2.55 kN (Metric)

• Reference Speed: 34000 RPM (revolutions per minute)

• Limiting Speed: 24000 RPM (with lubrication)

• Mass: Approximately 0.03 kg

3. Performance:

• The 6703ZZ bearing is designed for low noise and vibration, making it suitable for applications where smooth operation is critical.

• The deep groove design allows for high-speed operation and the ability to handle both radial and axial loads.

4. Applications:

• These bearings are commonly used in a variety of applications due to their small size and high performance, including in electric motors, office equipment, household appliances, and precision instruments.

• They are also found in applications such as miniature electric motors, small pumps, and high-speed spindles where space is at a premium and reliability is essential.

5. Maintenance:

• The sealed design of the 6703ZZ bearing reduces the need for frequent maintenance, as the rubber seals protect the bearing from dirt and moisture.

• However, it's still important to ensure that the bearing is not overtightened or misaligned during installation, as this can damage the seals and reduce the bearing's lifespan.

6. Installation:

• When installing 6703ZZ bearings, it is recommended to use proper tools and techniques to avoid damaging the seals or the bearing races.

• The bearings should be cleaned and the mating surfaces should be free of contaminants before installation.

7. Variants:

• There are various variants of the 6703ZZ bearing, such as those with different materials, clearances, or with single-sided seals (e.g., 6703-Z).

The 6703ZZ bearing's combination of high speed capabilities, load ratings, and sealed protection make it a popular choice for a wide range of precision and high-speed applications where reliability and long service life are required.

For further details on this product please directly contact our sales department under shh@dmsw.com 

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