Single Row Ball Bearings - 4.763x9.525x3.175 mm Unflanged - Chrome Steel SAE 52100 Bearing

R166-ZZS-ECO (PK-2)

Images are indicative only and may not represent the pack quantity or specific item details. Images should be used as a guide in conjunction with the product description.
  • Single Row Ball Bearings - 4.763x9.525x3.175 mm - Chrome Steel SAE 52100
1 4

ECO

Store Name: Small Parts & Bearings

Additional resources:
Tolerances
Standard Bearings PDF Catalogue
Shafting
Price:
$2.86 AUD
$2.86 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
 Qty: 38 packs (76 pcs) available now

Order 50 or more packs of 2 (100 pcs)
for $2.57 AUD per 2 pack
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 Jul 02, 2026

Base Category: Bearings - Single Row Ball

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

Product Details


Double shielded economy bearing

ID (d): 4.763mm
(4.763mm is 0.188 in.)

Chrome Steel SAE 52100
  • ID (d): 4.763mm
    (4.763mm is 0.188 in.)
  • O.D. (D): 9.525mm
    (9.525mm is 0.375 in.)
  • Width (B): 3.175mm
    (3.175mm is 0.125 in.)
  • Precision Grade: Economy
  • Closure Type: ZZS
  • Bearing Type: Radial

Brand: ECO
Country of Origin: TW

Product Compliance and Data

Similar to

  • Associated® 3977
  • Associated® 6599
  • Associated® 6906
  • Associated® 6906 / 6599
  • Associated® 6906 / 6599/7360
  • Associated® 7360
  • R166
  • R166BASIC

Used for

  • RC Car Parts
  • RC Helicopter Parts
  • Cobra® - Nemesis - Bearing
  • Custom Works® - Enforcer GBX - Bearing
  • Custom Works® - Enforcer GSX - Bearing
  • Custom Works® - Intimidator - Bearing
  • Custom Works® - Intimidator GBX RC - Bearing
  • Custom Works® - Intimidator Nitro GSX - Bearing
  • Duratrax® - Evader Buggy - Bearing
  • Duratrax® - Evader BX - Bearing
  • Duratrax® - Evader BX Nitro - Bearing
  • Duratrax® - Evader BX Pro RTR Electric - Bearing
  • Duratrax® - Evader ST - Bearing
  • Duratrax® - Evader ST Nitro - Bearing
  • Duratrax® - Evader ST Pro RTR - Bearing
  • Duratrax® - Hyper-10 - Bearing
  • Duratrax® - LXT Gas Conversion - Replacement Bearing
  • Duratrax® - RC10T Gas Conversion - Bearing
  • FSR - Bullet Electric - Bearing
  • FSR - Bullet Modified Losi - Bearing
  • HPI - RS4 Nitro Rush - Bearing
  • HPI - Rush Evo - Bearing
  • J Concepts - BJ4 - Bearing
  • Kyosho® - GP Ultima® RB RTR - Bearing
  • Kyosho® - Ultima® ST EP Sports - Bearing
  • Kyosho® - Ultima® ST GP Evolution Type R - Bearing
  • Kyosho® - Ultima® ST GP Sports - Bearing
  • Kyosho® - Ultima® ST Truck - Bearing
  • Kyosho® - Ultima® ST Truck With Steering - Bearing
  • Mugen® - MST-1 1/10 Gas Truck With Clutch - Bearing
  • Sport Werks® - Raven ST - Bearing
  • Team Associated® - B4 Factory Team - Bearing
  • Team Associated® - B4 RTR - Bearing
  • Team Associated® - B4 SE Electric Off Road - Bearing
  • Team Associated® - B4 Stealth Buggy - Bearing
  • Team Associated® - GT-2RS - Bearing
  • Team Associated® - Nitro TC3 - Bearing
  • Team Associated® - Nitro TC3 RTR - Bearing
  • Team Associated® - Nitro TC3 RTR Plus On Road - Bearing
  • Team Associated® - Nitro TC3 With Steering - Bearing
  • Team Associated® - RC10 - T3 1/10 - Centre Gear Bearing 3/16x3/8mm
  • Team Associated® - RC10 - T3 1/10 - Front Wheel Bearing 3-16-3-8mm
  • Team Associated® - RC10 - T3 1/10 - Gear Bearing 3-16-3-8mm
  • Team Associated® - RC10 - T3 1/10 - Rear Wheel Bearing 3-16-3-8mm
  • Team Associated® - RC10 Champion Series - Bearing
  • Team Associated® - RC10 Champion W-Stealth World Car - Bearing
  • Team Associated® - RC10 Championship Edition - Bearing
  • Team Associated® - RC10 Championship Edition With STE - Bearing
  • Team Associated® - RC10 Team Car - Bearing
  • Team Associated® - RC10 World Car - Bearing
  • Team Associated® - RC10B2 - Bearing
  • Team Associated® - RC10B3 - Bearing
  • Team Associated® - RC10B3 Sport - Bearing
  • Team Associated® - RC10B4 - Bearing
  • Team Associated® - RC10DS - Bearing
  • Team Associated® - RC10GT Factory Team Nitro Off Road - Bearing
  • Team Associated® - RC10GT Factory Team With Clutch Bell - Bearing
  • Team Associated® - RC10GT Old Nitro Off Road - Bearing
  • Team Associated® - RC10GT RTR - Bearing
  • Team Associated® - RC10GT RTR With Clutch Bell - Bearing
  • Team Associated® - RC10GT Special With Clutch Bell - Bearing
  • Team Associated® - RC10GT/ST Team Truck - Bearing
  • Team Associated® - RC10T - GT10 Truck - Wheel Bearing 3-16-3-8mm
  • Team Associated® - RC10T Truck - Bearing
  • Team Associated® - RC10T2 Sport - Bearing
  • Team Associated® - RC10T2 Truck - Bearing
  • Team Associated® - Stealth Trans - Bearing
  • Team Associated® - Team Car - Bearing
  • Team Losi® - DoubleX Buggy - Bearing
  • Team Losi® - DoubleX Truck - Bearing
  • Team Losi® - GTX Gas TRK - Bearing
  • Team Losi® - JR T Trans - Bearing
  • Team Losi® - JRX2 - Bearing
  • Team Losi® - JRX2 Truck LX-T - Bearing
  • Team Losi® - JRX-S 4 Wheel Sedan - Bearing
  • Team Losi® - JRXT Truck - Bearing
  • Team Losi® - Junior 2 - T - Bearing
  • Team Losi® - LX-T - Bearing
  • Team Losi® - NXT - Bearing
  • Team Losi® - Rally Street Weapon - Bearing
  • Team Losi® - Street Weapon - Bearing
  • Team Losi® - XX - XXCR - XXT CR - Belt Transmission Slipper Bearing 3-16-3-8mm
  • Team Losi® - XX - XXCR - XXT CR - Rear Wheel Bearing
  • Team Losi® - XX - XXCR - XXT CR - Transmission Bearing
  • Team Losi® - XX4 - Rear Wheel Bearing 3-16-3-8mm
  • Team Losi® - XXX-2WD Off-Road Racing Buggy - Bearing
  • Team Losi® - XXX4 - Bearing
  • Team Losi® - XXX-BK2 Racer - Bearing
  • Team Losi® - XXX-Buggy - Bearing
  • Team Losi® - XXX-Kinwald Graphite Edition - Bearing
  • Team Losi® - XXX-NT AD Version - Bearing
  • Team Losi® - XXX-NT Sport - Bearing
  • Team Losi® - XXX-S - Bearing
  • Team Losi® - XXX-T MF2 Sports - Bearing
  • Trinity® - Reflex 10 - Bearing
  • XTM Racing - Nitro X-Cellerator Racer - Bearing
  • XTM Racing - Nitro X-Cellerator RTR 2WD - Bearing
  • XTM Racing - X-Cellerator Stadium Truck RTR - Bearing
  • XTM Racing - X-Cellerator EP RTR - Bearing
    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.
    R166
    • View full details

    Click to open these sections

    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
    • Dental Handpiece Bearings & Parts Applications List

      Dental Handpiece Bearings & Parts Applications ...

      Version 2026.4 - June 2026 The MBA Dental Handpiece Bearings & Parts Applications List contains replacement bearings, turbines, headgears, pushbuttons, o-rings and more for many makes including ABU®, ACETON SATELEC®, ADEC®,...

      Dental Handpiece Bearings & Parts Applications ...

      Version 2026.4 - June 2026 The MBA Dental Handpiece Bearings & Parts Applications List contains replacement bearings, turbines, headgears, pushbuttons, o-rings and more for many makes including ABU®, ACETON SATELEC®, ADEC®,...

    • Free Cross Reference for Miscellaneous Brand Engineering Parts

      Free Cross Reference for Miscellaneous Brand En...

      Download the Miscellaneous Engineering Parts Cross Reference *** UPDATE 2026.1  *** May 2026 The MBA Part Numbers in this cross-reference are determined to be equivalent or similar to products offered...

      Free Cross Reference for Miscellaneous Brand En...

      Download the Miscellaneous Engineering Parts Cross Reference *** UPDATE 2026.1  *** May 2026 The MBA Part Numbers in this cross-reference are determined to be equivalent or similar to products offered...

    • Free Shaft Collars Catalogue

      Free Shaft Collars Catalogue

      Download the MBA Shaft Collars PDF Catalogue *** Update 2026.1 *** May 2026 The MBA Shaft Collars catalogue includes round bore, threaded bore and hex bore shaft collars in carbon...

      Free Shaft Collars Catalogue

      Download the MBA Shaft Collars PDF Catalogue *** Update 2026.1 *** May 2026 The MBA Shaft Collars catalogue includes round bore, threaded bore and hex bore shaft collars in carbon...

    • Free Circlips & E-Clips Catalogue

      Free Circlips & E-Clips Catalogue

      Download the MBA Circlips & E-Clips PDF Catalogue *** Update 2026.2 *** May 2026 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 *** Update 2026.2 *** May 2026 The MBA Circlips & E-Clips catalogue lists a full range of E-Clips, Internal Circlips, and External...

    1 4
    View all
    If you can't find what you need on our site, another source for Bearings - Single Row Ball may be found in the Miniature Bearings Australia website.