4X9X4 Bearing 684ZZ

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  • 684-ZZ-Bearing
  • 4X9X4 Bearing 684ZZ
  • 4X9X4 Bearing 684ZZ

Temporarily Out of stock


4X9X4 Bearing 684ZZ

Bearing Specifications

 Inside Diameter (ID) 4 mm
 Outside Diameter (OD) 9 mm
 Thickness (TH) 4 mm
 Race Material AISI52100 Bearing Steel
 Ball Material AISI52100 Bearing Steel
 Retainer Material AISI52100 Bearing Steel
 Enclosure Material Metal Shields


We only sell premium industrial grade bearings with most being ABEC-3 or better, not hobby quality bearings that others sell.  Our bearings are used in such products as museum art reproduction printers, underwater propulsion systems, hotrod manufacturers, military wind tunnel testing, commercial printers and world-class competition model aircraft. We have partnered with several manufacturers for over twenty years to produce bearings to meet or exceed our customers exacting requirements.


Did not workout? No Problem! We offer a 30 Day Money Back Guarantee.


Fast, Fast, Fast! Get your order to us by 3:00pm Eastern Time (M-F) and we will normally ship it the same day!

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Call us: (720) 480-5879

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1 Review

  • 3
    OK, but should be sealed

    Posted by Andrew Henrichs on 15th Jan 2020

    They are OK. They fit pretty well. I wish this size was available with rubber seals. RCs operate in dusty and wet environments. Unsealed bearing don't last long.

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