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HMMBW

2PCS 6903 Ceramic Bearing 17x30x7mm 6903-2RS Si3N4 Ceramic Ball Bearing ABEC-5

  • Based on 76 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, Jun 29
Order within 17 hours and 50 minutes
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Features

  • Dimensions: 17mm(ID.) x 30mm(OD.) x 7mm(T.)
  • 6903 Si3N4 Ceramic Bearing for Bicycle
  • Type: Deep groove radial ball bearings
  • Quality: Premium ABEC-5 quality
  • Balls Material: Black Si3N4 Ceramic/Cage: Nylon Cage/Rings: Steel ABEC-5

Description

This 6903-2RS 17x30x7-millimeter sealed ball bearing has deep groove geometry for high speeds and supporting both radial and axial loads. Its premium steel construction makes it resistant to corrosion and high temperatures and it conforms to ABEC 5 precision standard for performance within a narrow range of variation. The rubber seals on both sides of the bearing keep lubricant in and contaminants out. The silicon nitride ceramic balls provide high durability, low density, high shock tolerance, and resistance to heat and fracturing.

Brand: HMMBW


Material: Si3N4+Bearing Steel


Bearing Number: 6903 2RS


Bearing Type: Ball Bearing


UPC:


Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 5.87 x 3.46 x 0.24 inches; 1.13 ounces


Item model number ‏ : ‎ 6903


Date First Available ‏ : ‎ August 27, 2017


Manufacturer ‏ : ‎ Shanghai


Best Sellers Rank: #162,405 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1,232 in Deep-Groove Ball Bearings


#1,232 in Deep-Groove Ball Bearings:


Customer Reviews: 4.1 4.1 out of 5 stars 76 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Prefect Replacement
Perfect replacement for my boy's SunRingle hubs. They spin really nice and got my son back on the trails shredding the gnar without the stock squeaky bearings.
Reviewed in the United States on April 16, 2024 by Kevin
    • Decent bearings
Low price on a good product
Reviewed in the United States on March 4, 2022 by Jamie Bell
    • Good quality so far, no play.
Worked great in my Zipp 404 177 wheels!
Reviewed in the United States on June 26, 2020 by Brittany Miller
    • Don’t spin like a ceramic bearing should
They don’t spin like you would expect a ceramic bearing to. They have resistance in them. The picture shows them with blue seals and the ones I got were with black seals. Makes me think I got the wrong ones…
Reviewed in the United States on November 15, 2022 by Amazon Customer
    • Perfect!
Perfect!
Reviewed in the United States on March 28, 2020 by TOM
    • Fits native propel drive
Smooth rolling, exact fit for native propel
Reviewed in the United States on July 3, 2019 by Angela
    • Inconsistent quality.
I took a chance to see if these bearings would be decent for the price. I ordered two. One was fairly snug laterally and spun with a bit of normal resistance. The other was extremely loose laterally and spun with no resistance. The "loose" feeling bearing felt like a worn out bearing with no grease. I returned them immediately with no return issues. ... show more
Reviewed in the United States on April 17, 2020 by R. Bault
    • Looks like good bearings
The internal diameter is 16.5 mm, not 17. Unable to install to my bike front hub.
Reviewed in the United States on September 30, 2023 by Mikhail Y Sverdlov

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