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Open Type Deep Groove Ball Bearings

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Deep Groove Ball Bearings.jpg
Deep Groove Ball Bearings.jpg

China Factory Deep Groove Ball Bearings Suppliers | High-Quality Non-Separable Radial and Axial Load Bearings

Deep groove ball bearings are specialized, non-separable bearings characterized by their deep raceway grooves on both the inner and outer rings. Primarily designed for radial load applications, these bearings also exhibit versatile performance features similar to angular contact ball bearings, particularly when radial internal clearance is increased. This allows them to effectively accommodate combined radial and axial loads. In high-speed rotational scenarios where thrust ball bearings may falter, deep groove ball bearings stand out as an excellent solution for handling pure axial loads. As leading suppliers from China, our factory offers high-quality deep groove ball bearings tailored to meet diverse industrial demands
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    Product Details

    Bearings with Shields or Seals

    In addition to open-type base bearings, sealed bearings are available for applications where relubrication is difficult. Types include:
    🛡️
    Shielded Bearings: Designated Z, 2Z.
    🔄
    Non-contact Seals: Designated RZ, 2RZ.
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    Contact Seals: Designated RS1, 2RS1.

    These bearings are suitable for low-speed applications. They are pre-lubricated with an appropriate amount of grease during manufacturing and do not require cleaning or relubrication during installation. The grease provides rust prevention and sealing. These bearings are widely used in various machinery, especially in harsh environments where built-in sealing is required. The grease fill quantity depends on the bearing size and operating conditions, typically occupying 25% to 35% of the internal free space.

    Bearings with Snap Rings or Grooves

    Deep groove ball bearings with snap ring grooves or snap rings on the outer ring are available. These bearings simplify housing design by allowing the bearing to be axially secured in the housing using a snap ring. They are preferred when installation space is limited. The corresponding snap ring dimensions are listed in the bearing dimension tables.

    Low-Noise Bearings

    Low-noise bearings are available, such as:
    🔈
    Acceleration-level: Suffix codes Z1, Z2, Z3.
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    Ultra-low-noise: Suffix code Z4, ideal for air conditioner motors.
    📉
    Velocity-level: Suffix codes V1, V2, V3.
    Various combinations of deep groove ball bearings can be customized based on user requirements. Bearings are available in different tolerance classes and vibration groups.

    Dimensions

    The dimensions of the basic bearing types listed in the dimension tables conform to ISO 15:1981. The dimensions of snap ring grooves and snap rings comply with ISO 464:1976.

    Angular Misalignment

    Single-row deep groove ball bearings have limited ability to accommodate angular misalignment. The maximum permissible angular misalignment between the inner and outer rings depends on the operating radial clearance, bearing size, internal design, and the forces and moments acting on the bearing. Under normal operating conditions, it is approximately 2 to 10 arcminutes.

    It should be noted that angular misalignment during operation will significantly increase noise levels. Double-row deep groove ball bearings can only accommodate angular misalignment of up to 2 arcminutes. Greater misalignment will increase the load on the balls and raceways, potentially reducing bearing service life.

    Tolerances

    Standard deep groove ball bearings are manufactured to P0 tolerance class. Higher-precision bearings, such as P6, P5, P4, and P2, are also available for specialized high-accuracy requirements.

    Radial Internal Clearance

    Standard deep groove ball bearings are supplied with C0 group clearance. Bearings with greater or smaller clearances than the standard group are also available. Double-row deep groove ball bearings have standard radial internal clearance.

    Back-to-back or face-to-face paired bearings (Series 60, 62, and 63) are typically supplied in:

    • Small axial clearance (suffix code CA).
    • Light preload (suffix code GA).
    Frequently Asked Questions (FAQ)
    What are the main types of sealed deep groove ball bearings?
    The main types include shielded bearings (Z, 2Z), non-contact sealed bearings (RZ, 2RZ), and contact sealed bearings (RS1, 2RS1).
    Do sealed bearings require lubrication during installation?
    No, these bearings are pre-lubricated with grease during manufacturing and do not require cleaning or relubrication during installation.
    What is the advantage of using bearings with snap rings?
    Snap rings allow the bearing to be axially secured in the housing, simplifying the overall housing design and saving installation space.
    Which suffix codes identify ultra-low-noise bearings?
    Ultra-low-noise bearings are designated with the suffix code Z4, making them suitable for quiet applications like air conditioner motors.
    What is the standard tolerance and clearance for these bearings?
    Standard bearings are manufactured to P0 tolerance class and supplied with C0 group radial internal clearance.
    How does angular misalignment affect bearing life?
    Misalignment beyond the recommended limits (2-10 arcminutes for single-row) increases noise and load on the raceways, which can significantly reduce the bearing's service life.