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Single Row Ball Bearings - 4 mm x 9 mm x 4 mm
S684A-ZZ-MC3

MBA

Additional resources:
Tolerances
Standard Bearings PDF Catalogue
Shafting
Price:
$6.86 AUD
$6.86 AUD
Each
Qty: 29 available now
Order 50 or more for $6.17 AUD Each
You may order more than the quantity available. One delivery will be made when all items are ready unless you select for partial delivery at checkout. Backorders for more than the stock quantity are expected before Apr 16, 2025

Base Category: Bearings - Single Row Ball

Top Level Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless

Product Details:

ID (d): 4.000mm
+ 0.000 / - 0.0075

Stainless Steel AISI 440C
  • OD (D): 9.000mm
    + 0.000 / - 0.0075
  • Width (B): 4.000mm
    + 0.000 / - 0.125
  • Precision Grade: Abec 1
  • Closure Type: ZZ
  • Bearing Type: Radial

Brand: MBA
Country of Origin: JP

Alternative Parts Include: DD-L940-ZZ, DDL940-ZZ, 684AZZMC3, 684H-ZZ, 684A-ZZ-MC3, TGT2858, TGT1641, ULZ409X, RD11706, RD8278, 1329, SUL40CHH, SSL940-ZZ, SS-L940-ZZ, SS4-9-ZZ, W638-4-ZZ, W618-4-2Z, S684-2Z, S684-ZZ, S684SS, S684A-ZZMC3, BNT1329, Shimano, GRW, Origin, MPB, ADR, 684ABASIC

We offer equivalents to many brands including Anderton, Barden, Berg, Designatronics, EZO, ISC, Koyo, Myonic, NMB, Nordex, NSK, Ondrives, Reid Industrial, RMB, SDP-SI, Seeger, SKF, and more.

Used for Fishing Reel Parts, RC Helicopter Parts. Brands: Shimano, Align, Century, Hirobo, Mikado. Models: Chronarch 100SF, Trex 600 CF, Ninja Pro 30/46 All, Pro Master Upgrade, Sceadu 30 Evolution, Sceadu 50 Evolution, Logo 10, Logo 10 3D Version, Logo 14, Logo 14 Carbon, Logo 20.
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SHIPPING

Shipping Policy

Insurance, Brands & Related Information

PICK UP

Pick up is available from our Coopers Plains warehouse after your order is ready. Please refer to your ready notification email, and bring it with you to collect your parcel.

PDF CATALOGUES

You may freely download the following catalogues to review and compare products. To help you select the most readily available items, rows are colour coded and marked according to the key at the bottom of each page.

Part numbers from these catalogues can be checked in the online store. If they don't appear in the store, please email us for more information about the part.

Ball Lock Pins

Balls

Bearing Material Selection and Benefits

Bearings - Ceramic

Bearings - Corrosion Resistant

Bearings - Economy

Bearings - High Speed

Bearings - Plastic

Bearings - Radial - Master List

Bearings - Standard Range

Bearings - Super Precision

Bearings - Thrust

Bushes - Metallic & Plastic

Bushes - Sintered Bronze

Bushes - Solid Bronze

Circlips

Clevis Pins

Dowel Pins

Hammer Drive Pins

Key Steel

Knobs

Leveling Mounts

O-Rings

Pins

Poly Vee Belts and Pulleys

Push On & Push In Rings

Rod and Tube

Roll Pins

Screws

Shaft Collars

Shim Sheet

Shoulder Screws

Snap Rings

Socket Set Screws

Spring Steel Strip

Springs

Taper Pins

Thumbs Screws and Nuts

Timing Belts

Timing Pulley Stock

Timing Pulleys

Vibration Mounts - Bobbins and Buffers

Washers - Disc Spring

Washers - Precision Shim

Washers - Wave

Washers and Spacers

CROSS REFERENCES

We provide equivalents to many brands including Berg - Designatronics - Nordex - NSK - Oilite - Ondrives - Reid Industrial - SDP-SI - SKF. The following PDF cross references contain hundreds of thousands of part conversions.

ADR and SKF

Anderton Circlips

Barden Bearings

Designatronics SDP-SI

Essentra

Flocast Bronze Bushes

K&S Metals

Miniature Precision Bearings

Miscellaneous Brands

Misumi

NSK and NTN Bearings

Nordex

Ondrives

Reid Supply

SDP-SI

Seeger Circlips

Sintered Bronze

Small Parts Inc

Timing Belts & Pulleys

Latest News

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  • Free Push-In & Push-On Rings Catalogue

    Free Push-In & Push-On Rings Catalogue

    Download the Free MBA Push-In & Push-On Rings Catalogue For fast & secure, light duty fastening on shafts (external) or in bores(internal). No need for a groove. Available in carbon...

    Free Push-In & Push-On Rings Catalogue

    Download the Free MBA Push-In & Push-On Rings Catalogue For fast & secure, light duty fastening on shafts (external) or in bores(internal). No need for a groove. Available in carbon...

  • Mail Order Information

    Mail Order Information

    Yes, we still offer mail order. All mail orders are processed by our parent company Miniature Bearings Australia.  The MBA mail order form can be downloaded or printed from this...

    Mail Order Information

    Yes, we still offer mail order. All mail orders are processed by our parent company Miniature Bearings Australia.  The MBA mail order form can be downloaded or printed from this...

  • Free Shim, Foil & Sheet Catalogue

    Free Shim, Foil & Sheet Catalogue

    Download the Shim & Sheet Catalogue The MBA Shim Sheet Catalogue includes shim, sheet and foil sizes from 0.005mm (0.0002 inches), all the way up to 25mm (0.984 inches) plastic...

    Free Shim, Foil & Sheet Catalogue

    Download the Shim & Sheet Catalogue The MBA Shim Sheet Catalogue includes shim, sheet and foil sizes from 0.005mm (0.0002 inches), all the way up to 25mm (0.984 inches) plastic...

  • Stainless Steel Retaining Rings Information

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    Download the Stainless Steel Retaining Rings Information Sheet The highest quality stainless steel we offer for some circlips, snap rings and spiral rings is PH 15-7 Mo, which offers high...

    Stainless Steel Retaining Rings Information

    Download the Stainless Steel Retaining Rings Information Sheet The highest quality stainless steel we offer for some circlips, snap rings and spiral rings is PH 15-7 Mo, which offers high...

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If you can't find what you need on our site, another source for Bearings - Single Row Ball may be found in the Small Parts & Bearings website.