Bearing Shop Online - an MBA business


Frequently Asked Questions

Ordering FAQ Index
Products FAQ Index

If your question is not answered here, please contact us by e-mail.


If you receive a confirmation stating that items have been backordered, please check the "estimated shipping date" on the confirmation. We may send a partial shipment of the items available from stock at our discretion. In this case there will be no additional freight charge when the remainder of the backorder is shipped.

All orders require payment up front. Cancellation of backordered items prior to delivery may not be possible once the order is underway. Please choose carefully if your items are not available from stock.

Bank Details

If you are choosing the "EFT Payment" option, you will be sent a final confirmation when your order has been checked and processed. This final confirmation shows our bank details in the lower left corner.

Additional information on bank details is in our General Information PDF.

Bearing Precision

If you are new to bearings or have been caught up in all the ABEC hype related to skate and fishing reel bearings, you may like to check our Skate Bearing FAQ sheet on this subject. 

For the engineer our technical pages contain a lot of information about bearings including a tables of tolerances.


Cages(Bearing Retainers)

The purpose of a bearing’s cage is to hold and separate the rolling elements (balls) of the bearing.

The most common types of cage used for miniature ball bearings are the two piece steel ribbon and the one piece steel crown types. These cages are usually made out of a variety of grades of steel depending upon the manufacturer. Cages may be made from Brass, SAE52100 Chrome Steel or Stainless Steels AISI302, AISI410 or AISI430.

Larger bearings (over 10mm bore size) usually utilise a two piece steel riveted cage allowing for higher loads, and more vibration and acceleration stresses to be placed on the bearings.

High speed applications require bearings with a crown type retainer manufactured from various types of synthetic materials including NYLON, DELRIN®, ACETAL RESINS, PHENOLIC LAMINATES, PEEK®, GLASS RE-INFORCED POLYAMIDE, TORLON®

Bearing Shop Online carries a wide range of bearings with high speed cages and increased internal clearance. Please note however that "High Speed" is only a relative term. "High Speed" for a 10mm bearing is not the same as "High Speed" for a 4mm bearing. "High Speed" for a skating application is not the same as "High Speed" for a dental handpiece. 

DELRIN® and PEEK® are registered trademarks of DuPont.
TORLON® is a registered trademark of BP Amoco Polymers.

See also
Cages Page on Website

Cages Info Sheet


The most up to date catalogue is our online store with 29834 items shown. Due to the number of items available we don’t produce a full hardcopy catalogue. We do have several concise hardcopy catalogues available to purchase for specific categories. You can find them at Hardcopy Catalogues. The information in hardcopy catalogues can become out of date quite quickly.

We also have a large selection of PDF Catalogues (by category) available to download for free. These PDF catalogues will alsways be more up to date than the hardcopy catalogues.

We don’t provide engineering information other than general product specifications. We will tell you what material a product is made from but we don’t provide specifications or characteristics for the material. We may tell you the tolerance range for a product but we don’t discuss fits. We may provide limited engineering data such as temperature ranges, hardness etc but we will not discuss suitability for your application.

Certificates of Conformance and RoHS Certificates

If certificates of conformance are required please contact us prior to placing your order. The nature of a Certificate of Conformance is to certify that the product supplied with the certificate matches the product specifications. We can't provide a valid certificate after the goods have been sent. It is not valid to provide a dowloadable certificate of conformance, as this is contrary to the concept of confirming the conformance of the goods supplied. See the Certificates Page.

General Information PDF with Documentation Information

Cleanliness in Bearing Handling

See our Downloadable Cleanliness PDF

Collection of Orders

You may select to collect your order from our warehouse when you checkout from the online store. There is no charge for collection so long as your order meets the $5.00 minimum. Orders under $5.00 will be rounded up to $5.00 by application of a handling fee.

See our General Information PDF for Collection Information

Clearances (Radial Play)

The radial play or clearance of a bearing is equal to the total radial displacement, in the median plane perpendicular to the bearing axis of the inner ring in relation to the outer ring, under the effect of a small measuring force.

Clearance has nothing to do with the quality of a bearing but if badly chosen or unfavourably influenced during mounting, it can adversely affect the operation and reduce the working life of a bearing.

For more information on bearing clearance please see the

Delivery Times

Additional information on delivery notification & insurance is in our General Information PDF.

"The available" times shown on our product pages are the usual amount of time before a product will be available to despatch after you order it. See also "Shipping Times". 

"Shipping Times" represent the usual time in transit from when a parcel is despatched from us until it reaches you. Overseas customers may experience additional delays with customs processing.

"Usual Delivery" or "Usual Despatch Time" indicates how long, under normal circumstances, it will take for us to obtain and despatch the item. Our 29834 products come from many different factories throughout the world, so it is impossible for us to have real time availability displayed. You can use the links within the item page to e-mail us to check the availability. This is normally only a good idea if your timing is critical. Unfortunately checking first may also delay the final delivery by a few days whilst we check the stock status. Additionally, once we check the availability, there is nothing stopping the item selling out prior to your order being placed.

Please note that we NEVER quote a definite delivery time for any item as we have no control over our suppliers or freight companies. We do however have both automated and manual systems in place to follow up delayed deliveries with our suppliers and to keep you informed throughout the process. Once you place an order our automated system will keep you informed of any changes to the estimated delivery dates that we receive. If you receive an automated update, the new information will once again be our best estimate based on available information from our suppliers and/or freight forwarders.

Our policy is not to make promises that are beyond our control, but to keep our customers informed and to give our best estimates based on the information available. This may seem different to the way many suppliers do business. Many suppliers will promise you a delivery time and then hope for the best once you place your order. These suppliers know that your order will usually be supplied within their quoted time but if it isn’t, it will still be supplied before you realise that it is overdue, so you still think the supplier has done well. Occasionally you realise the item is overdue because you have an urgent need for the goods. You then have to chase the supplier. The supplier now realises that the goods are overdue and sets in motion procedures to chase their own suppliers. Does this sound familiar? Our policy and systems are a little different. Firstly, we don’t promise a delivery date - we advise you of the best estimate based on all available data at the time. Once you place your order you are placed into our automatic updates system. When our orders are placed with our suppliers we require their confirmation that the order has been received and processed within 2 days. Suppliers are followed up immediately until they confirm receipt of the order. This means you can be assured that our order for your goods has not been lost in the system. Our suppliers are then requested to inform us of any changes to the due dates for each item. Changes may be due to any number of factors such as sold stock, missing stock, incorrect stock, quality check failures or other reasons. As soon as we receive an update it is entered into our system and on the same day you will be sent an e-mail with the new estimate. Our system automatically starts following up all items a few days before they are due if we haven’t received a despatch advice from the supplier. Manual checks are also in place when items become overdue by more than a day. Once again, as soon as we receive an answer from our suppliers, you will be informed of the new details on the day we receive the answer.

Naturally we would like to supply everything by the original estimated date, but it is a fact of business that not everything will always go according to plan. Over 99% of our orders are supplied by the first estimated date, but due to the less than 1% that aren’t, our policy is not to make promises based on things we can’t control. We would rather keep you informed whenever a change occurs, and to keep the pressure on our suppliers for timely deliveries.

One of the drawbacks to doing business in this way is that some customers would rather hear their supplier promise them a delivery date so that when the delivery date isn’t kept they will have someone to blame. We prefer to believe that everyone from our suppliers to our freight forwarders are doing the best job possible and that if something goes wrong then the best course of action is to get the problem fixed rather than trying to pin the blame on someone. Our systems are in place to fix problems swiftly and communicate any changes to our customers.

Another drawback to doing business in this way is that it alerts customers when their order is going to be delayed, whilst many suppliers wouldn’t do so. If we hadn’t alerted our customer to the potential delay they may never have even noticed when the goods turn up a little late, and indeed this is the practice of many suppliers. However, we believe that our customers should be informed of potential delays as soon as we are in case they need to make alternative arrangements. Every now and then we have a customer become annoyed because we advise them of a delay. This is usually because they have made a promise to someone else that is beyond their control. If you would rather not receive automatic updates please ask our sales staff to deactivate updates for your account.

Dirty Environments - Bearings

If you want to run bearings in dirty environments, here are the facts ....

Steel bearings are not meant to be run in dirty, moist environments. Sure, bearings are included in equipment that gets dirty and moist, but that does not mean that they were ever designed for those conditions. 

Differing conditions call for different types of bearings. Each type has it’s own strengths and weaknesses. If you choose the most suitable bearing for the job you will get the best life expectancy.

If a bearing fails in the environment you place it, it does not necessarily mean that there is anything wrong with the bearing. All bearings have a life expectancy even under ideal operating conditions. 

Anything you do to a bearing that is not ideal will shorten the bearing life expectancy. This includes shock loads such as in skating, exposure to dirt such as with rc buggies, moisture, side loads, preloading, damage during fitting, extreme temperatures (hot or cold), loss of lubricant and more. When a bearing fails early, the chances of the failure being due to a manufacturing fault are almost zero, whilst the likelihood of the failure being due to one of the factors listed above are almost 100%.

Anything you do to help protect the bearing’s ideal operating environment will prolong the life. This can include using more suitable lubrication, using external seals, using a different integral sealing arrangement such as 2RS rubber seals instead of ZZ metal shields.

There are some bearings made from non standard materials that will be better suited to dirty and moist environments, but these are only available in a select range of sizes. These other materials have limitations in other areas such as speed and/or load carrying capabilities. Some of the non standard bearing materials listed on our web site which would be better suited to moisture include ACETAL (plastic), 316 and 304 STAINLESS STEEL, CERAMIC ZRO2, CERAMIC Si3N4.

ECO - Economy bearings

Most of our bearings are Japanese , US or German made. These bearings have an identifiable lubrication and can be traced back to a specific batch.

ECO bearings are Taiwanese made with a non specified lubricant.

Both types are made to Abec 1 precision, using similar types of steel, similar hardness and the same clearances. The main difference is that the ECO bearings may have lower quyality steels, lubricants and manufacturing processes. ECO bearings are the most cost effective choice for hobby applications including skating.

E-mail Response Times

E-mails are generally answered within 1-2 business hours, often quicker. If we can not answer your query fully within this time frame, our standard practice is to reply and let you know that the enquiry is going to take longer. We will also try to give you an indication of how long it should take to obtain an answer.

If you have sent us an e-mail but don’t seem to be getting a reply you may like to check the following...

We definitely respond to all enquiries we receive.

Engineering Advice

We don’t provide engineering advice or design services. The information we provide in relation to products is limited to the characteristics of the product and not general engineering information such as properties of the materials, determining fits, information relating to ratios and pitches etc. 


We will help you to determine if we have a product matching yours if you can provide us with enough information. We will also gladly help you to find products on our Online Catalogue pages. Please e-mail us for this type of assistance.

If you are unable to determine the suitability of a product or need assistance with calculations, we suggest you consult an engineer. 

Some useful engineering information can be found below...

Catalogues and Manuals

Engineering Links

Tips and Tricks

Fax Orders

Fax orders (fax: 07 3014 8764) are processed at the online price. Please ensure you include your full contact and payment details when faxing an order.

Finding Products

With 29834 individual products online you will need to have some idea of what you require. There are several ways to find a product using the handy search box at the top right of any of our pages.

If you know our part number you can type it (or part of it) into the search box. Don’t type anything else when searching for a part number or the search will automatically default to category search instead of part number search. You may leave any dots or dashes in the part number or remove them. It makes no difference to the search. If you get no results, try shortening the part number to look for partial matches.

You may also search for matches on other brand part numbers. The best way to do this is to type all or part of the other brand part number followed by the brand - eg, "688 NSK" (with or without the quotes). If the part number is shown in our cross reference of over 400,000 items you will be presented with the most relevant matches. If you don’t know the brand just search for the part number and after any matches from our own part number system are shown the search will then show matches from the most relevant cross reference matches.

If you have some idea of what the product is called but you don’t know part numbers, simply type into the search box what you think the item is called. The most relevant matches will be shown. The system even takes into consideration many American spellings and terminoligy, as well as alternative terms for the same item.

You can also browse all the product groups that begin with a particular letter by just typing that letter into the search box.

If you are having difficulty finding something please e-mail us. We usually respond within a few business hours.

Freight - General

Freight - Tracking and Shipping Times

"Usual Delivery" shown on our product pages is not the same as "Shipping Times". "Usual Delivery" represents the time that it would usually take to obtain and despatch the item. "Shipping Times" must be added to this.

Australian customers will be automatically provided with a tracking number when our freight manifest is produced between 3:30pm and 4:30pm each day.

Overseas tracking numbers are sent manually by our sales staff. If you don’t receive a tracking number please send us an e-mail.

If you don’t receive your parcel within the estimated shipping time shown in the shipping times table please e-mail us for a tracking number. Shipment tracking can be checked on the relevant courier web site.

You may optionally select Authority To Leave at checkout. Authority to leave means that you would like the delivery driver to leave the parcel if you are not available to sign for it. Insurance is only applicable up to the point of delivery. Once the driver has left the parcel, it is at your own risk. Be sure to contact us if you don’t receive a tracking number by the end of the day after receiving your invoice. Keep an eye on the tracking updates so that you know when the parcel has been left. If your parcel tracking says that it has been delivered but you can’t find it, you will need to contact us within 24 hours.

General Information PDF with Shipping Information

If you wish to sign for your parcel, but may not be available when the courier calls, consider using a Post Office Box as the delivery address. This is the next most secure option. PO Box delivery will be by Express Post if you select the Express option.


GST is a tax applicable to orders delivered to Australian addresses only. International orders will not be charged GST. When you checkout of the online store, the shopping cart will not add GST to your order unless you have selected an Australian delivery address. GST is still shown for other currencies in our Freight Rates page because we sometimes have orders from foreign guests working in Australia, and GST is still payable if the delivery is sent to an Australian destination regardless of the currency used to pay.


General Information PDF with Insurance & Delivery Information

Limiting Speed (Bearings)

Noise Levels (Bearings)

The noise levels of bearings depend essentially on the following factors

Some steps that can be taken in selection of bearings for low noise applications include

Non Standard Parts Quotations

If you find a product category that you are interested in but the particular size you require isn’t listed, we may be able to assist with having the item made. To have a special part quotation would require you to provide us with a drawing of the part required. Quantities must also be sufficient to be an economical production quantity. Economical production quantities vary with each product, but they can be anywhere from 100 to 100,000. Each case is determined on it’s own merits.

Order Confirmations

When you first place an online order you will receive and automatically generated acknowledgement receipt confirming that you have placed an order. During business hours your order is checked and processed. We will contact you if there are any problems. A final confirmation will be e-mailed to you to advise that the order has been accepted and processed.


All parcels are supplied in protective packaging. Items are wrapped in a combination of bubble wrap and/or sturdy boxes suitable to provide adequate protection. Long items such as allthread, rod and tubing are supplied in sturdy mailing tubes or attached to wooden backing.

Part Numbering

Why do we not always use the part number of the manufacturer? We offer products from so many different manufacturers that often we find groups of product overlapping or complementing each other. This enables us to offer a far greater range than most other suppliers. It is more consistent to generate our own part numbers consolidating all available items under a common system.

Phone Orders

Our store is based around online ordering as this greatly simplifies the ordering process and reduces the likelihood of errors. Our distributors have a direct line to us for urgent stock checking and urgent last minute orders. We strongly advise against ordering by phone. If you do need to order by phone please consider the following points...

Fax orders are processed at the online price. Please fax orders to 07 3014 8764. Please include your full contact and payment details when faxing an order.

Phoning for Information

Please refrain from phoning us for general or technical information. Our store is based around online communication. We prefer online orders and online enquiries. With 29834 items in the catalogue, you are not going to receive a quick answer by telephoning us. It is much more efficient to document your enquiry in a short e-mail. This gives us time to process your enquiry properly and provide the most accurate response.

Post Office Box Delivery

You may use your post office box instead of a street address.


Customer details are not shared with any third party. Customer payment details supplied via the secure server are stored in encrypted format until such time as the order is processed. Once the details are decrypted they are removed from the server completely.

See our Privacy page for more details.


All online customers are eligible for specials and discounts that are announced at the end of each year.

Faxed orders, e-mailed orders and mail orders can be placed at the published online prices.

Prototype Pricing

Some items in our store may seem to have high pricing for low quantities when compared to the price for 50 or 100 of the same item. This is not a mistake. These items are not stocked items and in order for us to obtain them for you we need to purchase large quantities. The idea here is that you should only buy these items in small quantities if you simply can not use a standard lower priced item. Only you can determine whether the price is justified with regards to the importance of the item to your job. If it is not terribly important, then you should look for a cheaper alternative. If it is very important, then the extra cost should be justified. We don’t want to get stuck with 99 (or more) of an item to supply just one, unless the customer buying one pays part of the cost of the other 99 that we have to buy.

If the item is important enough to pay the high price, then the premium you pay will help us bear some of the cost of the rest of the stock that we don’t need. If the item is not important enough to pay the high price then look for an alternative item or buy more to use as spares.
Pricing Example

If you purchase a prototype priced item and decide that the item is suitable for your application we will offer you the balance of the pack at a substantially reduced rate if you contact us within 2 months of the initial purchase. Just let us know the item and invoice number. Providing you are prepared to take the rest of the pack in full, we will offer it to you at the difference between the 100 price and the price you paid for the prototype item.

Our price breaks are set at 5, 10, 50 and 100. If you require a prototype priced item in a quantity between these amounts we may be able to offer you a special price based on that quantity. For example, if the prototype 1-4 price for an item is $60.00, then you wouldn’t be expected to pay the full $60.00 each for 2, 3 or 4 of the item. Contact us with your requirement and we will work something out for you.

Quantity Pricing

Priced items usually show a small-quantity price and a bulk price. If the quantity you require is substantially larger than the bulk price, please e-mail us and we will check if we can offer a reduced rate for the quantity required. There is a simple link on each item page to contact us for this purpose. It is found below the last quantity price. Determining special prices may take some time as we may need to contact the factory before we can get back to you.

Quicker Delivery

Pre-order delivery times are usually based on our regular consolidated orders from each individual factory. If you require a particular item more quickly, deliveries can often be reduced to around 2 weeks with payment of an expediting charge, usually around A$80.00-A$100.00 (+GST). We will need to confirm each request for expediting by e-mail. Please e-mail us the part number and quantity required. Once we confirm that the item is available at the factory, and a price for expediting, you will need to confirm acceptance of the expediting charge in writing (e-mail, fax or the special instructions area on your online profile).

Important points to note


We are unable to supply free samples under any circumstances. Most items have a small order price available online. If there is only a bulk price showing, then we are unable to obtain small quantities.

Special Offers

Several hundred items are usually marked at special prices in our catalogue. If you’re hunting for a bargain please check the surplus specials here - SPECIALS and SURPLUS

Special Quotes

Some items listed in our store are unpriced. These items are either for reference only or are deleted items. You will find a link in the items page to send us an enquiry for such items, however please understand that most unpriced items will require a very large quantity to produce. You may enquire even if you only need a few, but it is not very likely that we will be able to offer small quantities. Sometimes we will offer an estimate rather than a firm quotation for these items. This is to give the customer an idea as to what to expect so that we don’t put our suppliers to a lot of unnecessary work quoting parts that the customer expected to be a lot cheaper. Please see clause 5 of our Terms and Conditions of Sale for more information on this process.  

Specially Quoted Items - How to Order

If we provide you with pricing for an item where no price is shown in the online store, or special pricing for large quantities, these items can still be added to your online order simply by using the Special Items order form. Simply enter the part number and pre GST price that we quote. The item is added to your cart and becomes eligible for all online discounts.

Stainless Steel Grades

We often get asked for the equivalents to various stainless steel grades. The most common grades we are asked for are:-

303 / 304 : Similar to 18-8 and A2
316 : Similar to 18-10 and A4

For more information on Stainless Steels see http://

There is also some additional materials information available using the Recommended Links to the left of every page.

Using the Online Store - Overview

Using the online store is simple.

If you are not a registered user you can do your shopping first and log in later, but your cart will not be saved if you unexpectedly close your browser. It is best to register first.

Do you have to pay by credit card? No (Payment Options)

The multiple currency options are provided for payments sent by wire transfer and can also be used as a guide for credit card payments. Card payments will be charged in A$ and your card provider will convert this to your own currency. This may not be exactly the same as the rate shown on our site but it should be close.

Can you pick up from us? Yes. During checkout you may select to collect from our warehouse. We will send you an e-mail when the goods are ready for collection from Online Only,
Queensland 4157

Technical Data Sheets

Technical Data Sheets

Basic Information Sheets

Shop at the Bearing Shop Online Online Store

The Small Parts and Bearings website has a much larger range of engineering supplies.

Hobby and Engineering Supplies lists a smaller range of products and only the most popular items in each range. They also list many additional hobby specific categories.

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.

Main Pages

Freight Rates
Terms and Conditions
Privacy Policy

Registered Australian Company: Small Parts & Bearings Pty Ltd (ABN 79 121 865 414) - Trading as Bearing Shop Online

Bearing Shop Online offers 29834 products in 495 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, corrosion resistant bearings - 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.

Bearing Shop Online is part of MBA Group offering a select range from the MBA Group catalogue.

Information on this website is Copyright Bearing Shop Online 1997. All rights reserved.

Freight Rates
Terms and Conditions
Privacy Policy

Registered Australian Company: Small Parts & Bearings Pty Ltd (ABN 79 121 865 414) - Trading as Bearing Shop Online

Bearing Shop Online offers 29834 products in 495 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, corrosion resistant bearings - 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.

Bearing Shop Online is part of MBA Group offering a select range from the MBA Group catalogue.

Information on this website is Copyright Bearing Shop Online 1997. All rights reserved.