SKF Stainless Steel Y-Bearing

Specifications

How to choose Bearing units

Points to check when selecting, with the values for this product (SKF Stainless Steel Y-Bearing).

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

   This product: Shaft diameter d 20~50 mm

   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

   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

Raceways, rolling elements, metal seal components, and set screws are manufactured from stainless steel. YAR 2..-2RF/HV features multi-seals and food-grade grease. Dynamic load capacity is lower than that of same-size bearings made from high-purity carbon chromium steel. Available in metric sizes 20 to 50 mm and inch sizes 3/4 to 1 15/16 inch.

FAQ

Q. What applications and environments is the SKF Stainless Steel Y-Bearing suited for?

A. It is a Y-bearing for the food industry. Raceways, rolling elements, metal seal components, and set screws are made of stainless steel, and it uses food-grade grease and food-compliant seals.

Q. What is the shaft diameter range and size system of the SKF Stainless Steel Y-Bearing?

A. In metric sizes, it covers shaft bore d 20 to 50 mm, and in inch sizes, it covers 3/4 to 1 15/16 inch.

Q. What are the features of YAR 2..-2RF/HV, and how does its dynamic load capacity differ?

A. YAR 2..-2RF/HV features multi-seals and food-grade grease. Its dynamic load capacity is lower than that of same-size bearings made from high-purity carbon chromium steel.

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

Source documents

• Catalog SKF 転がり軸受カタログ 2 Y-軸受 (インサート軸受) 54 pages Open page 6
  Found on: https://azuma-eg.com/catalogue/