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Deep Groove Ball Bearing

SKF (Official website) / Listed on page 125 of the document

A versatile, non-separable ball bearing suitable for high and ultra-high speeds. It accepts both radial and axial loads and requires little maintenance.

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Deep Groove Ball Bearing on page 125 of SKF "SKF 深溝玉軸受 製品カタログ(設計およびバリエーション)"
Source: SKF「SKF 深溝玉軸受 製品カタログ(設計およびバリエーション)」page 125
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How to choose Deep Groove Ball Bearings

Points to check when selecting, with the values for this product (Deep Groove Ball Bearing).

  1. 1. Main dimensions to suit shaft and housing

    Select the bore diameter d to match the shaft diameter, the outside diameter D to match the housing bore, and the width B to suit the installation space. The listed products cover a wide range of bore diameters from 0.6 to 1420 mm, and even at the same bore diameter there are dimension series with different outside diameters and widths. Since load capacity and mass change with the dimension series, confirm the three dimensions in combination.

  2. 2. Basic dynamic load rating for life calculation

    The basic dynamic load rating Cr is the reference value for calculating rolling fatigue life, and life is estimated from the ratio of the actual applied load to Cr. For high loads or when long life is required, select a bearing with a larger Cr. Bearings made of special materials may have lower ratings than steel bearings of the same dimensions, so confirm life under the operating conditions.

  3. 3. Check static and shock loads against static rating

    The basic static load rating C0r is the guideline load at which permanent deformation does not occur, applicable when stationary, rotating at low speed, or subjected to shock loads. For applications with oscillating motion or large loads while stopped, select with emphasis on the ratio to C0r (static safety factor) rather than the dynamic rating.

  4. 4. Internal clearance to suit fit and temperature

    Radial internal clearance decreases during operation due to interference fits and temperature differences between the inner and outer rings. Clearances larger than standard, such as C3, are used in applications where the inner ring tends to expand, such as motors or high-temperature environments. Clearance that is too small leads to heat generation and seizure, so determine the class from the fit and operating temperature.

  5. 5. Materials and lubrication suited to the environment

    Stainless steel or ceramics (silicon nitride, zirconia, silicon carbide) are used in water or chemical solutions, while solid lubricants such as graphite or fluorine-based solids and fluorine grease are used in high-temperature, vacuum or clean environments. Listed products have maximum operating temperatures of 250 to 350°C, so select the material and lubrication method based on temperature, atmosphere and dust-generation requirements.

  6. 6. Check speed limits and electrical corrosion countermeasures

    Confirm that the limiting speed and reference speed exceed the operating speed. In equipment where shaft current flows, such as inverter-driven motors, hybrid bearings with insulating-coated or ceramic balls can prevent electrolytic corrosion. Ceramic balls are lighter than steel balls, so the effect of centrifugal force is reduced even at high speeds.

This guide was written by AI based on the listed products' documents and specification items.

About Deep Groove Ball Bearings and all products

Description

Available in single-row and double-row designs. Single-row bearings can be selected as open or sealed types (with seals or shields). Variations include stainless steel, filling notch, and snap ring groove designs, and the cage, seal, and grease types can be selected according to the application.

Features

  • Supports loads in both radial and axial directions
  • Stable operating capacity from deep, continuous raceway grooves
  • Multiple sealing methods, including shields, non-contact seals, low-friction seals, and contact seals
  • Corrosion-resistant stainless steel bearings available
  • Filling notch bearings increase the number of balls to raise radial load capacity
  • Snap ring groove design simplifies axial location in the housing

FAQ

Q. Can deep groove ball bearings accept both radial and axial loads?
A. Yes, they support loads in both radial and axial directions.
Q. What sealing methods are available for SKF deep groove ball bearings?
A. Multiple sealing methods are available, including shields, non-contact seals, low-friction seals, and contact seals. Single-row sealed types can be selected with seals or shields.
Q. Does SKF offer stainless steel or filling notch deep groove ball bearings?
A. Yes, corrosion-resistant stainless steel bearings are available. Filling notch bearings increase the number of balls to raise radial load capacity.
Q. Are SKF deep groove ball bearings suitable for high-speed operation?
A. Yes, they are versatile non-separable ball bearings suitable for high and ultra-high speeds.
Q. What are the benefits of the snap ring groove type of SKF deep groove ball bearings?
A. The snap ring groove design simplifies axial location in the housing.

Written by AI based on the content of the source documents.

Source documents

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