International buyers - please read the "International Shipping" section of our listing prior to making your purchase for information on transit times. Please DO NOT select the ECONOMY shipping option if you cannot accept the possible transit times. 

Los compradores internacionales - por favor lea la sección "Envío internacional" de nuestra lista antes de hacer su compra para obtener información sobre los tiempos de tránsito. Por favor, no seleccione la opción de envío ECONOMÍA si usted no puede aceptar los posibles tiempos de tránsito.

Les acheteurs internationaux - s'il vous plaît lisez la section «Frais de port international» de notre liste avant de faire votre achat pour des informations sur les temps de transit. S'il vous plaît NE PAS sélectionner l'option d'expédition ECONOMY si vous ne pouvez pas accepter les temps de transit

 

shipping-code:1.50:.1:.1:.1
5 x 10 x 4mm FLANGED
Metal Shielded
Bearing
 
MF105ZZ

This is a Big Ball Bearings MF105ZZ 5x10x4mm FLANGED Metal Shielded Bearing. Big Ball Bearings offers the best warranty in the business - a full 120 days - so you know they are excellent quality bearings.  This warranty is administered through the retailer (so we will handle any warranty issues for you) The statistics on these bearings, as well as a quick guide on how to choose the right bearings are listed below.  All items are new, still sealed in the factory packaging with full factory warranty. I accept paypal, and VISA/MASTERCARD/Discover.   Click here to view the other bearings and radio control items we have for sale in our eBay store.  If you purchase more than one of my items I will be happy to package them together to save you money on shipping. Good Luck!
 

 
Features:

High Carbon Chrome Steel Construction (Gcr15) For High Durability

Non-Contact Double Metal Shielding Offering Extremely Low Friction  for High Performance, while providing a seal to keep debris out of the bearing.

Inner Bore Diameter Tolerances Accurate to within +/- 0.0002"

Outer Diameter Tolerances Accurate to within +/- 0.0003" 

Rated for Maximum RPM up to 60,000 RPM

Maximum Outer Ring Radial Runout 0.0004"

Maximum Inner Ring Radial Runout 0.0002"

 

WHAT YOU NEED TO KNOW ABOUT BEARINGS:

TYPES OF SEALS:

There are three main types of seals used in Hobby Sized Bearings - Metal Shields, Rubber Seals, and Teflon Seals. The basic function of the seal is twofold - to keep contaminants out and to keep the lubricant in. The three types of seals differ in their sealing ability, how freely they let the bearing spin, and of course cost.

Sealing ability refers to the ability of the seal to keep debris and contaminants out of the inner workings of the bearings. The better the seal, the less often you have to clean your bearings to keep them running smoothly. Failure to clean your bearings when needed will shorten their lifespan. If you want bearings that need very little maintenance, rubber sealed bearings require very little to no attention as they offer the tightest seal.. Metal shielded bearings require the most maintenance.

How Freely the Seal lets the bearing spin is directly related to the performance of the bearings. A rubber sealed bearing offers lower performance than the other types of seals because the rubber seal is actually in contact with the inner workings of the bearing, which results in higher friction as the balls rub against the rubber seals. Metal Shields, Teflon, and Polyamide Seals are "non-contact" as they are held in place away from the inner workings of the bearing. They let the bearing spin easier and offer noticeably higher performance.

Cost is always important in our hobby, and the type of seal does affect the cost of the bearing. The Chart below shows a comparison of the cost of the various bearings. Metal Shielded bearings are the least expensive, while PolyAmide sealed bearings are the most expensive (except for ceramic bearings which can cost you up to $400 for a set).

Ratings   1=Excellent   2=Very Good   3=Good   4=Fair
  Sealing Ability Allows for Bearing to Spin Freely Affordability
Metal Shields 3 1 1
Rubber Sealed Bearings (Contact) 1 3 2
Teflon Sealed Bearings 1 1 3
PolyAmide Sealed Bearings 1 1 4

SEAL COLOR: Seal Color is unrelated to bearing quality or performance. It is only used by companies to help build name recognition.

MATERIALS:

There are two major types of materials used in the construction of Hobby Sized bearings - Chrome Steel and Stainless Steel. Both are excellent bearing materials. The main differences between the two are corrosion resistance and cost. Chrome Steel is slightly less expensive than Stainless Steel and will function very well under ordinary use (on or off-road), and under extreme use if properly maintained. If you are running in extreme conditions such as mud, water, or snow, Stainless Steel Bearings will require less maintenance. If you keep your bearings properly lubricated, you will not be able to tell the difference.

TOLERANCES:

Tolerances refer to how closely the moving parts fit together. There is an incorrect assumption about tolerances that started with the Skateboarding crowd that the tighter the tolerance, the better the bearing and the higher performance you will get out of those bearings. This is true to a point - the tolerances on a bearing needs to be tight enough to prevent "wobble" and other performance reducing problems. As tolerances become too tight, however, friction inside the bearing starts to increase and the performance will begin to suffer. You need lubrication and enough space for the bearing to spin freely. The Tolerances in a bearing are described by an ABEC or ISO number. The Higher the ABEC number, the tighter the tolerances. Bearings must reach a certain tolerance level (such as a width to achieve and ABEC rating. We have found that ABEC-1 bearings work well for light use, but ABEC-3 bearings are the best for hard use or racing. We have found that ABEC-5 bearings offer slower lap times. Make sure you ask your seller what for the ratings on their bearings - if they don't know or won't tell you, they are probably selling the cheaper ABEC-1 or even non-ABEC rated bearings.

WARRANTY:

The warranty that covers the bearings is usually a good indicator of the bearing quality. A manufacturer won't want to offer a long warranty if they have inferior bearings. A warranty should replace a bearing in the case of premature failure. If you buy your bearings from an individual working out of their basement or company that does not offer a warranty you may end up with low quality bearings and no recourse for correcting the problem. Always ask what warranty is offered on your bearings.

GENERAL GUIDELINES FOR CHOOSING BEARINGS:

Metal Shielded Bearings: Metal Shielded bearings offer excellent performance at a budget price. They work very well for on-road racers as they offer excellent performance and are easily maintained to keep them at peak performance. If used in an off-road application, exposed bearings such as wheel bearings will need to be cleaned on a regular basis to keep them running smoothly. (Inexpensive tools are available that makes cleaning easy) These are also excellent bearings in high-temperature applications such as Clutch Bells in Nitro Vehicles.

Rubber Sealed Bearings: Rubber Sealed Bearings are a nice choice for people who want bearings they can install and not have to worry about cleaning or maintaining them. They are also recommended for running in wet or extremely dirt conditions. Because of the performance loss involved with this kind of seal, they work best for sport use, and amateur racing.

Teflon Sealed Bearings: Teflon Sealed Bearings are an excellent choice for racers as they offer a combination of high performance and low maintenance. They work very well for both on-road and off-road applications.

PolyAmide Sealed Bearings: This is a new type of Teflon Sealed Bearing. It offers all the performance of other Teflon Seal Bearings, but includes a Polyamide core seal which offers a sealing ability that rivals rubber sealed bearings for protection from debris. This improved seal also offers greater resistance to heat, and improved lateral strength. Their High performance makes them well suited for both Electric and Nitro Racing Applications, while their maintenance free operation makes them just at home bashing around the backyard.

 

This item is brand new, sealed in the factory packing, with full manufacturer's warranty.

  Click here for an easy way to search the other Radio Control and Gaming Items available in our Ebay Store.  

Click here to learn more about RCBOYZ

 

CONTACTING RCBoyz

 

If you have any questions about your order or the items we have for sale, please contact us:

 

Phone: (801) 355-7797 Monday-Friday 9:30am-4pm MST

 

 

Please note that we are closed on the weekends and holidays so E-mails and payments received after business hours will not be processed until the next business day. If you are not receiving responses to your E-mails, please check your E-mail spam filter settings or give us a call.  

COMBINED SHIPPING

 

Save money on your orders with a combined shipping discount! We are more than happy to combine shipping on multiple purchases to save you money on shipping. We do require that all items must be paid for via a single payment. This makes it possible to match your items up for shipping, and eliminates the extra fees we get charged when separate payments are made -this allows us to pass the savings on to you. If separate payments are made, the full shipping charge for each item will apply. 

How can you get combined shippng?

1) Add all the items you want into your shopping cart. When you are finished shopping, go into the shopping cart (the cart icon is in the upper right hand corner of the ebay page) and click on the "Request Total from seller" link. Then wait for us to send you an invoice with combined shipping. Note: You may have to do this from the ebay US website (www.ebay.com). some international sites do not support that feature. Also, ebay's cell phone App currently ignores combined shipping - so you might have to pay from your computer or froma standard web browser on your cell phone.

2) Have eBay's system can do an automatic combination for you. EBay's system will charge you full shipping for the item with the most expensive shipping and add an additional amount for each item you add to the order. This works well if all items are heavy, or you only have a few items. If you are buying lots of small items, or items that are very different in size,  you will usually get a much better rate using either option #1 or option #3.  

3) You can click "Buy It Now" on all the items you want - but do not pay for them yet. When ebay asks you to pay, instead just continue shopping. When you have agreed to buy all the items you want, click on the "Request Total from Seller" link on one of the order pages, and wai for us to send you a combined invoice.

We offer combined shipping as a courtesy to our buyers - please help us to continue offering these discounts by adhering to the instructions above.

WHEN MAKING PAYMENT

We accept Paypal (Ebay Payments), Visa, Mastercard, Discover, and American Express. You must include your shipping address with your payment. If you have special instructions, please contact us before making payment. Please do not use Paypal's "Notes" section on the payment to make special handling requests. We do reserve the right to restrict  payment types or to require verification of identity to help prevent fraud.  Payment must be received within 4 days. After 4 days have passed items will be released to other buyers. 

DOMESTIC SHIPPING

Most packages will arrive within 3-14 days. We ship quickly, but have no control over what the carrier does with the package once it leaves our hands. If you need guaranteed delivery by a specific date, please E-mail us for a shipping quote that includes a guaranteed delivery date (such as Express Mail, or UPS 2 & 3 day delivery services).  Shipments to P.O. Boxes may incur additional charges (because we normally ship our heavy items vis UPS or FedEx).

INTERNATIONAL SHIPPING

***NOTE: The US Postal Service raised their international rates for small items by 30-50%.  We do offer an ECONOMY service as a less expensive alternative - but please see below about tracking and possible transit times BEFORE selecting ECONOMY. **

***THE CANADIAN POST is still having issues with long deliveries (Mainly having to do with backlogs of up to 40 days at Customs). Please DO NOT use Economy shipping if you live in Canada***


 

We like to keep our items available to buyers across the globe. Please familiarize yourself with the following terms for international shipping before bidding. This will help us keep our items available to international buyers. If you cannot abide by these terms, please do not make this purchase.

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 P.O. Box, APO/FPO, ALASKA, HAWAII, and US POSSESSIONS SHIPMENTS

Flammable items such as paints (non-water based or flammable), fuels, and similar items cannot be shipped to these addresses due to hazardous materials restrictions. Additional shipping charges may apply to shipments going to these locations because heavy items we ship via UPS/FEDEX ground within the continental US - a method that cannot be used to these locations.  We strongly suggest that you request Priority Mail shipping to APO/FPO addresses as first class mail to these locations can be slow.

Insurance

The listed shipping and handling charges include insurance against loss or damage for all items (foreign and domestic).

Sales Tax

Buyers in Utah pay 6.85% sales tax as required by state law.

All Trademarks are the property of their respective holders.

 

 

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