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Single-Row Deep Groove Ball Bearings

単列深溝玉軸受 d 12–240 mm / SKF (Official website) / Listed on page 31 of the document

A series of single-row deep groove ball bearings with bore diameters of 12 to 240 mm. Basic load ratings, limiting speeds, mass and other data can be compared by bore, outside diameter and width.

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Single-Row Deep Groove Ball Bearings on page 31 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 31
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Specifications

Inner diameter d 12 to 240 mm
Outer diameter D 21 to 500 mm
Width B 5 to 95 mm
Basic dynamic load rating Cr 1.74 to 442 kN
Basic static load rating C0r 0.039 to 585 kN
Limiting speed (grease lubrication) 2,600 to 70,000 r/min

How to choose Rolling Bearings

Points to check when selecting, with the values for this product (Single-Row Deep Groove Ball Bearings).

  1. 1. Bore and housing bore dimensions

    This product: Inner diameter d 12 to 240 mm

    Select the bore diameter d to match the shaft seat, the outside diameter D to match the housing bore, and the width B to suit the installation space. Main dimensions are standardized in ISO and JIS dimension series, so interchangeable products can be found by boundary dimension designation. For tapered roller bearings, also check the assembled width T; for thrust bearings, also check the height H.

  2. 2. Dynamic load rating based on life calculation

    This product: Basic dynamic load rating Cr 1.74 to 442 kN

    The basic dynamic load rating Cr is the reference value for calculating rated life. Verify that the required life is met using the equivalent load during operation and the rotational speed. For ball bearings, life is proportional to the cube of the load ratio, so providing load margin greatly extends life.

  3. 3. Margin for static and shock loads

    This product: Basic static load rating C0r 0.039 to 585 kN

    The basic static load rating C0r is the allowable standard for permanent deformation generated at the rolling elements and raceways under stationary or low-speed conditions. For applications with oscillating motion or shock loads, confirm that a static safety factor against the maximum load is secured using C0r.

  4. 4. Operating speed and lubrication method

    This product: Limiting speed (grease lubrication) 2,600 to 70,000 r/min

    The limiting speed differs by lubrication method, and separate values are given for grease lubrication and oil lubrication. Confirm that the normal operating speed does not exceed the limiting value, and in high-speed ranges also consider cage material and precision grade. The reference speed can also be consulted as a thermal guideline.

  5. 5. Precision grade and internal clearance

    Precision grades (P0, P6, P5, etc.) indicate rotational accuracy and dimensional accuracy; for high-precision applications such as machine tool spindles, select higher grades. Internal clearance (C2, CN, C3, etc.) is selected to allow for changes caused by interference fit and temperature differences during operation.

  6. 6. Materials and lubrication suited to the environment

    For corrosive, high-temperature, vacuum, or clean environments, select specifications such as rings and rolling elements made of stainless steel or ceramics, or solid lubricants and fluorine grease for vacuum use. Check the operating temperature range, low dust generation, and whether food-grade grease registration applies against the application conditions.

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

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Description

A data sheet summarizing the main dimensions and ratings of single-row deep groove ball bearings with bore diameters from 12 mm to 240 mm. For each boundary dimension series number, it lists dimensions, dynamic and static load ratings, fatigue load limit, reference and limiting speeds, and mass. Some bearings are SKF Explorer bearings. The dimension tables also include mounting dimensions and calculation factors.

Features

  • Wide size range with bore diameters from 12 to 240 mm
  • Includes SKF Explorer bearings
  • Basic load ratings and fatigue load limits provided

FAQ

Q. What are the bore, outside diameter and width ranges for the single-row deep groove ball bearings, d 12–240 mm series?
A. Bore diameter d is 12 to 240 mm, outside diameter D is 21 to 500 mm, and width B is 5 to 95 mm.
Q. What are the load ratings and limiting speeds of the single-row deep groove ball bearings, d 12–240 mm?
A. Basic dynamic load rating Cr is 1.74 to 442 kN, basic static load rating C0r is 0.039 to 585 kN, and limiting speed (grease lubrication) is 2,600 to 70,000 r/min.
Q. Does the single-row deep groove ball bearings, d 12–240 mm series include SKF Explorer bearings?
A. Yes, some bearings are SKF Explorer bearings.
Q. What information is included in the data sheet for the single-row deep groove ball bearings, d 12–240 mm?
A. Dimensions, dynamic and static load ratings, fatigue load limit, reference and limiting speeds, and mass are listed for each boundary dimension series number. The dimension tables also include mounting dimensions and calculation factors.

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

Source documents

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