Spherical Roller Bearings for Vibration Applications

Specifications

How to choose Rolling Bearings

Points to check when selecting, with the values for this product (Spherical Roller Bearings for Vibration Applications).

1. 1. Bore and housing bore dimensions

   This product: Inner diameter d 150～240 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 1 460～3 100 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 1 760～4 000 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

   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.

About Rolling Bearings and all products

Description

Large spherical roller bearings with bore diameters of 150 to 240 mm and outside diameters of 320 to 500 mm. Available in cylindrical and tapered bore designations, with permissible acceleration under oil lubrication and calculation factors provided. SKF Explorer bearings.

FAQ

Q. What applications are spherical roller bearings for vibration applications (series 22330 and others) suited for?

A. They are spherical roller bearings designed for applications subject to vibration. They are intended for use in vibrating machinery and large industrial machinery.

Q. What are the inner and outer diameter ranges and the mass of spherical roller bearings for vibration applications?

A. The bore diameter d ranges from 150 to 240 mm and the outside diameter D ranges from 320 to 500 mm. The mass ranges from 43.5 to 155 kg.

Q. Are there bore shape options for spherical roller bearings for vibration applications?

A. Both cylindrical and tapered bores are available. Check the designation list in the product information to confirm which designations are offered.

Q. What are the load ratings and reference speeds of spherical roller bearings for vibration applications?

A. The basic dynamic load rating Cr is 1 460 to 3 100 kN, and the basic static load rating C0r is 1 760 to 4 000 kN. The reference speed is 950 to 1 600 r/min.

Q. Can spherical roller bearings for vibration applications be used with oil lubrication?

A. Permissible acceleration and calculation factors for oil lubrication are provided. These are SKF Explorer bearings.

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

Source documents

• Catalog SKF 球面ころ軸受 (製品データ表 8章抜粋) 78 pages Open page 61
  Found on: https://azuma-eg.com/catalogue/