SKF ConCentra Y-Bearing

Specifications

How to choose Bearing units

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

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

   This product: Shaft diameter d 25~60 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

The inner ring is wide and symmetrical on both sides, and the serrated contact surfaces allow the inner ring to expand when the mounting collar is tightened, achieving a concentric fit. Noise, vibration, and fretting corrosion are suppressed, and it resists loosening even under high speed and heavy loads. Standard seals with additional sheet steel flingers are fitted on both sides. Available for metric shaft sizes 25 to 60 mm and inch sizes 1 to 2 11/16 inches.

FAQ

Q. What type of shaft is the SKF ConCentra Y-Bearing YSP 2 mounted on?

A. ConCentra locking technology provides a precise concentric fit on the shaft. Compatible shaft diameters are 25 to 60 mm for metric sizes and 1 to 2 11/16 inches for inch sizes.

Q. What features does the SKF ConCentra Y-Bearing YSP 2 have regarding resistance to loosening?

A. The inner ring is wide and symmetrical on both sides, and the contact surfaces are serrated. Tightening the mounting collar expands the inner ring to achieve a concentric fit, so it resists loosening even under high speed and heavy loads. It also suppresses noise, vibration, and fretting corrosion.

Q. What are the seal and lubrication specifications of the SKF ConCentra Y-Bearing YSP 2?

A. It has standard seals with additional sheet steel flingers on both sides. It has two grease holes.

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 7
  Found on: https://azuma-eg.com/catalogue/