7 - Skate - Hobby
Skate Bearings - Question 7
What are the Abec grades of bearings available. How different are the grades?
You don’t need anything higher than ABEC 1 for skating applications. The precision grade only tells us how close the tolerances are (ie, how close the bearing is to the stated size). There are many other factors relating to the quality of a bearing that will have more impact on your skating experience than the ABEC Grade of the bearing. But if you are still curious - here are the grades...
From Lowest to Highest
- ABEC 1 Approximately equal to ISO P0
- ABEC 3 Approximately equal to ISO P6
- ABEC 5 Approximately equal to ISO P5
- ABEC 7 Approximately equal to ISO P4
- ABEC 9 Approximately equal to ISO P2
There are a number of factors covered by the ABEC grades, but to give you an idea we will just examine one of these factors - the eccentricity (out of roundness) of the track in the inner ring. For an ABEC 1 (lowest grade) bearing, the maximum eccentricity allowable is 0.0075 mm (0.000295"). This is quite precise - more than precise enough for skates and skateboards. The figures for other grades are
- ABEC3: 0.005 mm (0.000197")
- ABEC5: 0.0035 mm (0.000138")
- ABEC7: 0.0025 mm (0.000098")
- ABEC9: 0.0012 mm (0.000047")
You can purchase online at Hobby and Engineering Supplies Online.
For a huge range of bearings online please visit the Bearing Shop Online website.
The Small Parts and Bearings website has a much larger range of engineering supplies.
For the best range of miniature and small bearings please try the Miniature Bearings Australia website. Miniature Bearings Australia also list a large variety of miniature engineering products.
Extra information for Hobby - Skate
Hobby and Engineering Supplies offers 3245 products in 322 categories including spare parts for remote control cars, assortment kits, kites, styrene, depron, ceramic and ceramic hybrid bearings, bearings, tools, belts and adhesives - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.
Using the links throughout this site you will find extensive information including catalogues, technical data, and other product specific information. We sell our products worldwide through our online store and our overseas freight rates are competitive for fully traceable courier delivery.
Hobby and Engineering Supplies is part of MBA Group offering a select range from the MBA Group catalogue.
Hobby and Engineering Supplies products are not authorised for sale into the USA or Canada due to the reluctance of Australian insurers to provide product liability insurance into those two countries.
Information on this website is Copyright Hobby and Engineering Supplies 1997. All rights reserved.