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Y-Bearing for Agricultural Applications

YARAG 2 / YELAG 2 / YSPAG 2 / SKF (Official website) / Listed on page 16 of the document

Y-bearing designed for harsh agricultural machinery such as combines and balers. Features 5-lip seals on both sides and VT307 grease fill to extend service life and improve resistance to wet environments. Dimensionally interchangeable with standard Y-bearings and requires no re-greasing.

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Y-Bearing for Agricultural Applications on page 16 of SKF "SKF 転がり軸受カタログ 2 Y-軸受 (インサート軸受)"
Source: SKF「SKF 転がり軸受カタログ 2 Y-軸受 (インサート軸受)」page 16
A reduced image of the relevant page is quoted from the document. Copyright belongs to SKF.Request removal

Specifications

Shaft diameter d 20~50 mm
Shaft diameter (inch series) 1~1 15/16 インチ
Sealed Grease VT307

How to choose Bearing units

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

  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

Agricultural Y-bearing with patented 5-lip seals on both sides and a lifetime grease fill. Available with three locking methods: set screw type (YARAG 2), eccentric locking collar type (YELAG 2), and SKF ConCentra locking type (YSPAG 2). Accommodates metric shaft sizes of 20 to 50 mm and inch shaft sizes of 1 to 1 15/16 in. Dimensionally interchangeable with standard Y-bearings, enabling upgrades of existing machinery.

Features

  • 5-lip seals fitted on both sides
  • VT307 grease fill, no re-greasing required
  • Long service life in wet environments
  • Three locking methods
  • Dimensionally interchangeable with standard Y-bearings

Applications

  • Agricultural machinery
  • Combines
  • Balers
  • Harvesters
  • Disc harrows

FAQ

Q. Which agricultural machines can the YARAG 2 / YELAG 2 / YSPAG 2 Y-bearings for agricultural applications be used on?
A. They are designed for harsh agricultural machinery such as combines and balers. Listed applications include agricultural machinery, combines, balers, harvesters, and disc harrows.
Q. What shaft sizes and grease do the YARAG 2 / YELAG 2 / YSPAG 2 support?
A. Metric shaft diameters d of 20 to 50 mm and inch shaft sizes of 1 to 1 15/16 in are supported. The sealed grease is VT307.
Q. What types of locking methods are available for the YARAG 2 / YELAG 2 / YSPAG 2?
A. There are three types: set screw type (YARAG 2), eccentric locking collar type (YELAG 2), and SKF ConCentra locking type (YSPAG 2).
Q. Can the YARAG 2 / YELAG 2 / YSPAG 2 replace existing standard Y-bearings?
A. Yes. They are dimensionally interchangeable with standard Y-bearings and can be used to upgrade existing machinery.
Q. Do the YARAG 2 / YELAG 2 / YSPAG 2 require re-greasing, and can they be used in wet environments?
A. No re-greasing is required, as they are filled with VT307 grease. Together with the 5-lip seals on both sides, they are designed for long service life even in wet environments.

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

Source documents

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