No Minimum Order Value

We are more than happy to process any order however small or large. If you only require one oil seal or a small bearing that's no problem.

* Plus our carriage fees are only £1.50 for any UK order, shipped Royal Mail™ First Class service.

Naturally should you wish to upgrade to guaranteed next day carrier then you may do so.

BSI Accredited Company

Simply Bearings Ltd were awarded ISO 9000:2000 accreditation by BSI (The British Standards Institute) for their quality management procedures in January 2007

We adopt and maintain a strict quality regime and adhere to the guidelines set out in the standards.

Trade and Public Welcome

Yes both the trade and public are welcome to use our services.

Yes we offer the same level of service to both trade and public

Ball Grades & Materials

A Simple Explanation of Ball Grades.

  • The grade refers to the surface quality and precision of the ball,
  • The lower the number the better the ball quality. e.g. Grade 3 is the highest quality and grade 2000 is the lowest
  • Grade 100 is accepted as the industry standard ball grade.

    Please see Technical Specification in product listings for more info

    A Simple Explanation of Stainless.

  • Stainless steel balls will resist corrosion but are not as hard as the chrome steel balls.
  • 316 Stainless is suitable for food and marine applications and is not magnetic (can be magnetised eventually)
  • 420 is a cutlery grade, is harder and polishes up well, 440 is magnetic and is one of the hardest stainless grades.

    Most grades of Stainless are available (please enquire)



    • Watch a short video of how to select oil seals.

    The Most Commonly Asked Oil Seal Questions

    Question: What should my seal size be if my shaft diameter is x?

    Answer: The same size as the shaft diameter. This is because the manufacturers of the seals make allowance so that the seals will be a snug fit on a shaft.

    E.g. If you have a 25mm shaft then the seal's bore you require will be 25mm as would be marked on the seal
    In reality if you actually measured the bore of a new seal it will be nearer 24.2mm, this is the allowance that the manufacturers build into the seal.

    The same applies to the outside diameter, it should be the same diameter as the housing into which it will fit, again the manufacturer has taken into consideration any allowances to make the seal a good fit in its housing.

    Seal Width: is not always fixed to replacing like for like as there are some advantages to fitting narrower or wider seals where space permits it, these instances may be where a groove has become worn in the shaft and a wider or narrower seal will allow the sealing lip to run on a fresh piece of shaft. Or where the actual width is just not manufactured any longer or discontinued.

    The R21 style is a seal with a single sealing lip and is suited to applications like cranks and gearbox seals.

    The R23 style is a seal with one sealing lip and a dust lip and is suited to applications like wheel bearings and anywhere there is likely to be dust and moisture, the dust lip does not act as a seal but as protection to the sealing lip.

    Watch a short video showing how Ball Bearings are made