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Support Bearing for Precision Ball Screw SAC2562B

Model SAC2562B / SAC0000B系列 / JTEKT Corporation (Official website) / Listed on page 143 of the document

Thrust angular contact ball bearing for supporting precision ball screws, with bore 25 mm and outer diameter 62 mm. Contact angle 60°.

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Support Bearing for Precision Ball Screw SAC2562B on page 143 of JTEKT Corporation "精密転がり軸受 Precision Ball & Roller Bearings (CAT.NO.BA005JA-5DS)"
Source: JTEKT Corporation「精密転がり軸受 Precision Ball & Roller Bearings (CAT.NO.BA005JA-5DS)」page 143
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Specifications

Inner diameter d 25 mm
Outer diameter D 62 mm
Width B 15 mm
Basic dynamic load rating Ca (single unit) 4.9 kN
Permissible axial load (double-row combination) 38 kN
Limiting speed (grease lubrication) 4600 min-1
Limiting speed (oil lubrication) 6000 min-1
Mass 0.240 kg

SAC0000B系列 model comparison

Compare 2 models in the same series by specification.

Model Inner diameter d Outer diameter D Width B Limiting speed (grease lubrication) Limiting speed (oil lubrication) Mass Basic dynamic load rating Ca (single unit) Permissible axial load (double-row combination)
SAC1747B 17 mm 47 mm 15 mm 6300 min-1 8000 min-1 0.130 kg 3.7 kN 25.5 kN
SAC2562B This product 25 mm 62 mm 15 mm 4600 min-1 6000 min-1 0.240 kg 4.9 kN 38 kN

How to choose Rolling Bearings

Points to check when selecting, with the values for this product (SAC2562B).

  1. 1. Bore and housing bore dimensions

    This product: Inner diameter d 25 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

    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

    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) 4600 min-1

    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

Dedicated thrust angular contact ball bearing for precision ball screws. Excellent axial load capacity and rigidity in back-to-back duplex arrangement.

Features

  • High rigidity
  • Low torque
  • No preload adjustment required when used in combination

Applications

  • Machine tools
  • Precision ball screw support

FAQ

Q. How can the SAC2562B be used for ball screw support in machine tools?
A. It is a dedicated thrust angular contact ball bearing for precision ball screws, intended for machine tools and precision ball screw support. The contact angle is 60°.
Q. What are the dimensions and mass of the SAC2562B?
A. Bore diameter d 25 mm, outer diameter D 62 mm, width B 15 mm, mass 0.240 kg.
Q. What load and speed can the SAC2562B handle in a duplex arrangement?
A. The permissible axial load in a duplex arrangement is 38 kN. The limiting speed is 4600 min-1 with grease lubrication and 6000 min-1 with oil lubrication. The basic dynamic load rating Ca of a single bearing is 4.9 kN.
Q. Does the SAC2562B require preload adjustment when used in combination?
A. It is specified that no preload adjustment is required when used in combination. High rigidity and low torque are also key features.

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

Source documents

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