SKF Energy Efficient (E2) Y-bearing
YAR 2 / YET 2 / YSP 2 (E2) / SKF (Official website) / Listed on page 19 of the document
An energy-saving Y-bearing with more than 50% lower friction moment than standard products. Lower operating temperature is expected to extend grease life and bearing life.
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Specifications
| Friction Moment Reduction Rate | 50 or more % |
|---|---|
| Operating temperature reduction range | 30 °C |
How to choose Bearing units
Points to check when selecting, with the values for this product (SKF Energy Efficient (E2) Y-bearing).
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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.
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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.
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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.
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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.
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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.
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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.
Description
Combining new contact seals and a low-friction grease, this performance class reduces friction moment by more than 50% compared with standard Y-bearings of the same dimensions. Operating temperature is up to 30 °C lower than standard products, and under normal conditions the bearing can run without re-lubrication. It is dimensionally interchangeable with standard products and can be used to improve conveyors, industrial fans and textile machinery.
Features
- Friction moment reduced by more than 50%
- Operating temperature reduced by up to 30 °C
- Contact seals and steel plate flingers (YAR 2 and YSP 2)
- Dimensionally interchangeable with standard products
Applications
- Conveyors
- Industrial fans
- Textile machinery
FAQ
- Q. Can the SKF Energy Efficient (E2) Y-bearing (YAR 2 / YET 2 / YSP 2 (E2)) replace standard products without changing dimensions?
- A. Yes, it is dimensionally interchangeable with standard products.
- Q. How much friction can the SKF Energy Efficient (E2) Y-bearing (YAR 2 / YET 2 / YSP 2 (E2)) reduce?
- A. It reduces friction moment by more than 50% compared with standard Y-bearings of the same dimensions.
- Q. How does the operating temperature change when using the SKF Energy Efficient (E2) Y-bearing (YAR 2 / YET 2 / YSP 2 (E2))?
- A. Operating temperature is up to 30 °C lower than standard products. Under normal conditions, it can run without re-lubrication.
- Q. What applications is the SKF Energy Efficient (E2) Y-bearing (YAR 2 / YET 2 / YSP 2 (E2)) suited for?
- A. It can be used to improve conveyors, industrial fans, textile machinery and similar applications.
- Q. What is the configuration of the seals and flingers on the SKF Energy Efficient (E2) Y-bearing (YAR 2 / YET 2 / YSP 2 (E2))?
- A. It uses new contact seals and a low-friction grease. The YAR 2 and YSP 2 are fitted with contact seals and steel plate flingers.
Written by AI based on the content of the source documents.
Source documents
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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 19
Found on: https://azuma-eg.com/catalogue/
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