6801-2RS

Single Row Ball Bearings - 12x21x5 mm Unflanged - Chrome Steel SAE 52100 Bearing

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  • Single Row Ball Bearings - 12x21x5 mm - Chrome Steel SAE 52100
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MBA

Store: Minibearings - Miniature Bearings Australia - Online, Pick-Up, Retail, Distributors, Wholesale Additional resources:
Tolerances
Standard Bearings PDF Catalogue
Shafting
Price:
$4.77 AUD
$4.77 AUD
Each
Qty: 74 available now
Order 50 or more for $4.29 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 Sep 26, 2025

Base Category: Bearings - Single Row Ball

Top Level Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel

Product Details

ID (d): 12.000mm
+ 0.000 / - 0.0075
(12.000mm is 0.472 in.)

Chrome Steel SAE 52100
  • OD (D): 21.000mm
    + 0.000 / - 0.010
    (21.000mm is 0.827 in.)
  • Width (B): 5.000mm
    + 0.000 / - 0.125
    (5.000mm is 0.197 in.)
  • Precision Grade: Abec 1
  • Closure Type: 2RS
  • Bearing Type: Radial

Brand: MBA
Country of Origin: JP

Product Compliance and Data

Similar to

  • FESTO 237955
  • ALTPART
  • 5972K276
  • WIB 61801-2RSR
  • WIB 61801-RSR
  • Sealed 6801 / 5
  • NTN 6801LLU
  • 618012RSR
  • 61801RSR
  • 6801-2RS
  • 6801DDU
  • 6801-DDU
  • 68012RS
  • 6801RS
  • 6801-RS
  • 6801BASIC

Used for

  • RC Car Parts
  • RC Nitro Engine Parts
  • BMT - 1-10 Gas - Bearing 12-21-5mm
  • BMT - 1-8 Gas - Bearing 12-21-5mm
  • BMT - 891 Austin - Bearing 12-21-5mm
  • BMT - 931 4012 SA-AD - Bearing 12-21-5mm
  • BMT - 931 Austin QCFE - Bearing 12-21-5mm
  • Crono - 4WD 3 Diff 1-8 - Bearing 12-21-5mm
  • HPI - Proceed - Bearing 12-21-5mm
  • Kyosho - Evolva - Bearing 12-21-5mm
  • Kyosho - Evolva 2005 - Bearing 12-21-5mm
  • Kyosho - Fantom 2001 - Bearing 12-21-5mm
  • Mugen - MRX-3 1/8 Scale - Bearing 12-21-5mm
  • Mugen - MRX-4 - Bearing 12-21-5mm
  • Mugen - MRX-4R - Bearing 12-21-5mm
  • Mugen - Sport 1/8 Gas - Bearing 12-21-5mm
  • Mugen - Sting 1/8 Gas - Bearing 12-21-5mm
  • Multiplex - Tecnago 1/5 Scale - Bearing 12-21-5mm
  • NEO - 1-10 Scale Attack 4WD - Bearing 12-21-5mm
  • NEO - 1-8 Gas - Bearing 12-21-5mm
  • Ofna - Colt 1/8 Gas - Bearing 12-21-5mm
  • Picco - Integra 1/8 Gas - Bearing 12-21-5mm
  • Picco - Shepherd Speed 1/8 - Bearing 12-21-5mm
  • Serpent - 9000 - Rear A-le Inner Newer Models Bearing 12-21-5mm
  • Serpent - 950 - Bearing 12-21-5mm
  • Serpent - 950R - Bearing 12-21-5mm
  • Serpent - 950R With Front Wheel Upgrade - Bearing 12-21-5mm
  • Serpent - 950R With STE Ten and Front Wheel UP - Bearing 12-21-5mm
  • Serpent - 950R With Steering and Tensioner - Bearing 12-21-5mm
  • Serpent - Excel 1/8 4WD - R-A-le Inner Bearing 12-21-5mm
  • Serpent - Excel 1/8 Gas - Bearing 12-21-5mm
  • Serpent - Impact 10 Pro 2 - Bearing 12-21-5mm
  • Serpent - Impact-10 - Bearing 12-21-5mm
  • Serpent - Sprint 6000 Gas - Bearing 12-21-5mm
  • Serpent - Vector - Bearing 12-21-5mm
  • Serpent - Vector Spec 2000 - Bearing 12-21-5mm
  • Serpent - Veteq - Bearing 12-21-5mm
  • Serpent - XL900 MkII - Diff Bearing 12-21-5mm
  • Tamiya - Nitro Thunder NDF-01 - Bearing 12-21-5mm
  • Tamiya - Nitro Thunder XB RTR - Bearing 12-21-5mm
  • RCV - 120SP - 15 - Bearing 12-21-5mm

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.
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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

Information, Catalogues, and News

View all
  • Free Circlips & E-Clips Catalogue

    Free Circlips & E-Clips Catalogue

    Download the MBA Circlips & E-Clips PDF Catalogue August 2025 Update *** 2025.3 *** The MBA Circlips & E-Clips catalogue lists a full range of E-Clips, Internal Circlips, and External...

    Free Circlips & E-Clips Catalogue

    Download the MBA Circlips & E-Clips PDF Catalogue August 2025 Update *** 2025.3 *** The MBA Circlips & E-Clips catalogue lists a full range of E-Clips, Internal Circlips, and External...

  • Free Wave Washers Catalogue

    Free Wave Washers Catalogue

    Download the Wave Spring Washers PDF Catalogue August 2025 Update *** 2025.3 *** The MBA Wave Washers catalogue includes 2 (curved), 3 and 4 wave types in carbon spring steel...

    Free Wave Washers Catalogue

    Download the Wave Spring Washers PDF Catalogue August 2025 Update *** 2025.3 *** The MBA Wave Washers catalogue includes 2 (curved), 3 and 4 wave types in carbon spring steel...

  • Free Taper Pins Catalogue

    Free Taper Pins Catalogue

    Download the MBA Taper Pins Catalogue *** UPDATE 2025.2 *** August 2025 The Taper Pins Catalogue is available to download from the link above. The catalogue includes imperial - inch...

    Free Taper Pins Catalogue

    Download the MBA Taper Pins Catalogue *** UPDATE 2025.2 *** August 2025 The Taper Pins Catalogue is available to download from the link above. The catalogue includes imperial - inch...

  • Free Springs & Wire Catalogue

    Free Springs & Wire Catalogue

    Download the MBA Springs Catalogue PDF *** UPDATE 2025.2 *** August 2025 The MBA springs catalogue can be downloaded in PDF format. The catalogue includes imperial and metric springs from...

    Free Springs & Wire Catalogue

    Download the MBA Springs Catalogue PDF *** UPDATE 2025.2 *** August 2025 The MBA springs catalogue can be downloaded in PDF format. The catalogue includes imperial and metric springs from...

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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.