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SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing)

超高低温用Y-軸受 / SKF (Official website) / Listed on page 25 of the document

Insert-type Y-bearing for use in extreme temperature ranges. Same design as the standard YAR 2-2F series, available in VA201 and VA228 types.

Last verified: (date the content was verified against the source document)

SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing) on page 25 of SKF "SKF 転がり軸受カタログ 15 エンジニアリング製品 15A センサー軸受ユニット"
Source: SKF「SKF 転がり軸受カタログ 15 エンジニアリング製品 15A センサー軸受ユニット」page 25
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Specifications

Operating Temperature Range -30~+250 °C
Permissible misalignment 20~30 分角

How to choose Bearing units

Points to check when selecting, with the values for this product (SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing)).

  1. 1. Match shaft diameter and dimensional system (metric/inch)

    Bearing units are offered in separate metric and inch series, and they are not interchangeable even when their appearance is similar. Listed products cover metric sizes of 3 to 150 mm and inch sizes of 1 to 4 in. First determine the shaft diameter and dimensional system, then select from the corresponding series.

  2. 2. Check the rated load against the operating conditions

    The basic dynamic load rating Cr is used for rolling fatigue life calculations, and the basic static load rating C0r is used for evaluating stationary or shock loads. Listed Cr values range from 7.28 to 793 kN, and there are heavy-load products, such as half-ring types, with increased static load ratings.

  3. 3. Select a specification suited to the operating temperature

    Standard greases and rubber seals deteriorate at high temperatures. High-temperature specifications are available in types with different upper temperature limits; for example, VA201 is rated at 130 to 250°C and VA228 at 260 to 350°C. In addition to the ambient temperature, check the permissible seal temperature and the sealed grease.

  4. 4. Choose the shaft fixing method for the application

    Set-screw type is easy to install but requires control of the tightening torque. The method that fixes the bearing with a tapered bore and adapter sleeve provides a secure connection to the shaft and suits applications with reversing rotation or vibration. Check it together with the recommended shaft tolerance grade.

  5. 5. Verify the permissible rotational speed

    Bearing units have an upper limit on usable rotational speed depending on seal friction and the fixing method. The permissible speeds of listed products range widely from 6 to 12000 r/min, and low-speed heavy-load and high-speed units have very different characteristics. Confirm that the operating speed has sufficient margin.

  6. 6. Allow for shaft tilt during installation

    This product: Permissible misalignment 20~30 分角

    In the spherical-fit design, the unit can absorb shaft tilt during installation up to a certain angle. However, in structures that allow regreasing, the permissible angle may be smaller. Listed products include an example of 2°. Check the permissible misalignment according to the accuracy of the base or frame.

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

About Bearing units and all products

Description

Equipped with shields and flingers on both sides to prevent ingress of solid contaminants. Radial internal clearance is twice that of C5 for deep groove ball bearings of the same dimensions.

Features

  • Shields and flingers on both sides
  • Corrosion resistance through manganese phosphate treatment

Applications

  • Conveyors in high- and low-temperature environments
  • Industrial machinery

FAQ

Q. What are the operating temperature range and permissible misalignment of the SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing)?
A. The operating temperature range is -30 to +250 °C. The permissible misalignment is 20 to 30 minutes of arc.
Q. What applications is the SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing) suited for?
A. It is intended for use in conveyors and industrial machinery in high- and low-temperature environments. It is an insert-type Y-bearing designed for extreme temperature ranges.
Q. What are the dust protection performance and corrosion resistance of the SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing)?
A. It has shields and flingers on both sides to prevent the ingress of solid contaminants. It also offers corrosion resistance through manganese phosphate treatment.
Q. What are the types and design basis of the SKF Ultra-High/Low Temperature Y-Bearing (Insert Bearing)?
A. VA201 and VA228 types are available. The design is the same as the standard YAR 2-2F series. Radial internal clearance is twice that of C5 for deep groove ball bearings of the same dimensions.

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

Source documents

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