thingiverse

free

Extrusor Bowden MK7 623zz by datoor

...extrusor bowden mk7 623zz by datoor thingiverse extrusor bowden mk7 y rodamiendo 623zz

thingiverse

free

623ZZ Flange Extension by nebbian

...thingiverse the flanges on 623zz bearings can be too small to properly locate the belt. this extension makes the flange larger.

thingiverse

free

spool holder use 623zz by groyer60

...w 12mm-16mm 2 m3 nut 2 m3 washer 4 623zz 2 3mm drill

thingiverse

free

mini fidget spinner 623zz by juandaherrera

...dget spinner 623zz by juandaherrera thingiverse hello this is my version of a mini spinner with keychain. i used bearings 623zz.

thingiverse

free

Pulley Prusa I3 hephestos 623zz by activa1969

...pulley prusa i3 hephestos 623zz by activa1969 thingiverse spare pulley prusa i3 hephestos 623zz

thingiverse

free

GT2-Idler for (623ZZ 3x10x4mm and F623ZZ ) by hackerbijay

...) by using this gt2 belt move properly . link: https://www.prusaprinters.org/prints/66060-gt2-idler-for-623zz-3x10x4mm-and-f623zz

thingiverse

free

2020 Profile slide with 623zz by yum0102

... 623zz slide the module smooth and quite precise. needs: 10x3mm pin & 623zz - 6 or 8 psc. 25mm m3 srew - 4 psc. s - srew side

thingiverse

free

GT2 Pulley / Idler 16x12 Bearing 623ZZ by stanoba

...gt2 pulley / idler 16x12 bearing 623zz by stanoba thingiverse gt2 pulley with 2 x 623zz bearings.

thingiverse

free

Guía de rodamiento 623zz by somosmaker

...maker thingiverse guía de rodamiento adaptada para el tensor del eje y de prusa tairona. para utilizar con un rodamiento 623zz.

thingiverse

free

HyperCube Z Carriage With 623ZZ Bearing by veetra

...m8uu linear bushing. work better then lm8uu i can say. fixings: 12 x m3x30mm 16 x m3x12mm 16 623zz bearing 28 x m3 nylon lock nut

thingiverse

free

Pulley p3steel pro 623zz by buenobarrera1981

...eel, para correa de ancho 6 mm,, montaje con 1 rodamiento 623zz. recomiento imprimi a 0.1 de altura de capa, velodidad lenta 60%.

thingiverse

free

Polea Rodamiento 623ZZ Lop3Dmodd-40 B-004 by Lopezmodd

...ea rodamiento 623zz lop3dmodd-40 b-004 by lopezmodd thingiverse polea para el rodamiento 623zz para impresora lop3dmodd-40 b-004

thingiverse

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623ZZ Bearing and housing by abrokadabra

...nd housing by abrokadabra thingiverse use this in your models. scale the housing by about 1.02 for a better fit. 10mm x 4mm x m3

thingiverse

free

623zz bearing fidget spinner by UEPONYA

...623zz bearing fidget spinner by ueponya thingiverse 6 m6x8 bolt 1 m3x20 bolt 1 m3 nut

thingiverse

free

623zz Rodamiento 3D bearing by Dapaco3D

...si que los imprimi directo y quedan perfectamente y funcionan igual al rodamiento (reemplace los rodamientos por esta impresion )

thingiverse

free

Mini Fidget Spinner 623zz B.B. by spillo87

...bolts, it should be heated with a hairdryer. the two parts of the cap were glued to each other after i inserted the ball bearing.

thingiverse

free

Prusa i3 X-Carriage with belt-holder offset for 623ZZ bearings by ePoxi

...s by epoxi thingiverse this carriage gives the proper offset to the belt to be aligned with the 623zz idler and the t2.5 pulley.

thingiverse

free

Standard 623ZZ ball bearing flange by KDan

...ned this simple part to serve as a flange for the bearing. i tapped the inside with m3 thread so they would stay firmly in place.

thingiverse

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Simple adjustable 623ZZ filament spool holder for 2020 extrusion by watamin

...x 623zz 2x m3 10mm bolt 2x m3 nut 2x m5 10mm for t-slot or 4x 623zz 2x m3 15mm bolt 2x m3 nut 2x m5 10mm for t-slot 閲覧ありがとうございます。

thingiverse

free

Guía de poleas ejes X + Y para rodamiento 623zz by somosmaker

...odamiento 623zz by somosmaker thingiverse con 2 de estas a cada lado del rodamiento 623zz genera una guía para correa gt2 de 6mm

thingiverse

free

Bearing smooth filament guide for Aluminium 2020 extrusion corner with 623zz by watamin

...ingiverse a simple bearing filament guide. 1x 623zz 2x m3 10mm bolt 1x m3 nut and t-nuthttps://www.thingiverse.com/thing:1073567

thingiverse

free

8mm to 3 mm adapter (P3Steel-623zz bearing y axis)-1 mm shorter by Calculin

...1 mm shorter by calculin thingiverse an adapter for prusa i3 steel (by irobri) that allows the use of 623zz bearings in y axis.

thingiverse

free

623zz bearings roller and pulley for Spektra lining conversion by qpidgiga

... fix steps (not yet tested). the other part was designed for 623zz bearings (inner diam. 3mm - outer diam. 10 - thickness 4 mm).

thingiverse

free

Printable 623zz Bushing by davachat

...n up with a 3mm drill bit. got this working on a compact direct drive extruder but dont know if durable enough for every day use.

thingiverse

free

623ZZ pulley for Prusa i3 X idler belt tensioner by AndrewBCN

...this avoids creating a seam on the perimeter of the pulley. openscad sources are included so the design can be further remixed.

thingiverse

free

623 or 623zz to 608 Spacer by PteroDancer

...onal and will keep it from slipping. if you have trouble getting it in, push it down into it on a flat surface, or sand it a bit.

thingiverse

free

LM8 bearing replacement with 623ZZ and 693ZZ for Prusa MK3/S

... frame. bearings are 623zz and 693zz. bigger one is mounted in center of bearing block and fixed with 9.5mm m3 bolt without head.

thingiverse

free

SpotMicroESP32 (using 623ZZ bearings) by projunk

...oint between bottom shells to avoid collision with 20a buckconverters (bottom_cover_split_front.stl, bottom_cover_split_rear.stl)

thingiverse

free

Tiny Pulley GT2 - 623zz bearing - seger ring by darmach

...designed to be printed on an sls, and it turned out well. if someone manages to print it out on fff, let me know in the comments!

thingiverse

free

Changeover of the SC8UU bearing by 623ZZ 3x10x4 mm by URkA

...i by mistake loaded not the correct file if it is necessary for you, download the correct file. i apologize for the carelessness.

thingiverse

free

Customized 623ZZ Flange Bearing (Pulley) by The_Mechanic

...y needs two bearings. the inner diameter is 8mm and the outer dimensions are like two of the f623zz flange bearings. have fun! :)

thingiverse

free

623ZZ Bearing Pressfit tool for Prusa i3 MK3/S by mgresham

...er rim of the bearing to avoid damage. with bearing removal, it is not a concern since the bearing is old and will be discarded.

thingiverse

free

B-Struder - Bowden extruder with MK7 gear + 623ZZ bearing for 1.75mm filament by Barrocas

...ted with an extra 2x m3 large washers, between them and the motor mount (pictured in red), to compensate for the taller mk7 gear.

thingiverse

free

Filament holder by Mitka

...holder by mitka thingiverse threaded stud - m6 and 623zz ...

thingiverse

free

Belt Tensioners for Prusa i3 by modelatolyesi

...belt tensioners for prusa i3 by modelatolyesi thingiverse 623zz bearings...

thingiverse

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another very small spool holder by NLink

...very small spool holder by nlink thingiverse use a 623zz bearing, 3mm screw and 3mm...

thingiverse

free

Bearing block for table (8mm shaft, 623zz bearings at 120 degrees) by good_idea

...key printer. it will be faster and lighter than stock linear bearing. and it will not damage the shaft like stock linear bearing.

thingiverse

free

K40 Adjustable Bed Belt Tensioner by loidolt

...loidolt thingiverse simple belt tensioner that uses two flanged 623zz ...

thingiverse

free

Spool holder on 623 bearings by EazyBreezy

...eazybreezy thingiverse the spool is about 210mm dia; 4x 623zz bearings; 4x m3x10...

thingiverse

free

Mini 623 Bearing Fidget Spinner by jerryt74332

...bearing fidget spinner by jerryt74332 thingiverse small spinner for 623zz bearings 3mm x 10mm x...

thingiverse

free

Spool Holder for Delta by jamiliang

...use 625zz bearing for mini original version use use 623zz ...

thingiverse

free

Drill Press by JetEn

...press based on aluminium 10mm x 10mm profiles and 623zz bearings. i used epoxy to glue...

thingiverse

free

Massage Roller

...massage roller thingiverse for assembly you will need: 2x 623zz (3x10x4mm ball bearings) 2x m3 nut 2x m3x16 flat...

thingiverse

free

Dondolo modified arm by milstream

...this replacement arm for the dondolo dual extruder uses 623zz bearings to ride along the cam. this provides a...

thingiverse

free

Bead Spinner by Dimonira

...build the model required two bearings 608zz (8x22x7mm) and 623zz (3x10x4mm). the project files for sketchup 2017 is...

thingiverse

free

Extruder printer ZAV by Zakatnyi

...принтера zav. для сборки потребуется: подающая шестерня мк8 подшипник 623zz (3х10х4) винты м3 по...

thingiverse

free

Extruder printer ZAV by Zakatnyi

...принтера zav для сборки потребуется: подающая шестерня мк8 подшипник 623zz (3х10х4) винты м3 по...

thingiverse

free

Mini Fidget Spinner by snailshoe

...caps on, it's about 9mm thick. bearings that i used:https://www.aliexpress.com/item/10pcs-lot-623zzbearing-623-zz-3x10x4-miniature-deep-groove-ball-bearing-623-2z-zz-bearing/32284920589.html?spm=2114.13010608.0.0.8bnakg ...

thingiverse

free

Holder_v2 by Kentas

...kentas thingiverse holder for filament. you can use bearing 623zz or the pully. print at normal speed and layer...

thingiverse

free

Tensor eje X reforzado by buenobarrera1981

...eje x reforzado, para montar con pulley p3steel pro 623zz recomiendo imprimir a 0.1 altura de capa, velocidad...

thingiverse

free

603zz-spacer by treeherder

...treeherder thingiverse i accidentally bought 603zz bearings instead of 623zz and i already made really nice prints for the...

thingiverse

free

Compact mk8 bowden extruder by wensz

...compact mk8 bowden extruder by wensz thingiverse uses 623zz bearing 4 m3 bolts m6 pneumatic fitting about the...

thingiverse

free

Modified direct drive extruder by hc625ma

...not mine, the idler was re-created from stl files. 623zz bearing is used for the...

thingiverse

free

Bearing block for 8 mm shaft, 3 x 623zz bearings at 120 degrees by good_idea

...#39;m open to critics and improvements. p.p.s. here is similar design for y-axis (table).http://www.thingiverse.com/thing:1438544

thingiverse

free

Mini Fidget Spinner by profesorek96

...mini fidget spinner. my project was based in bearing 623zz i use a pet-g to print this model. all...

thingiverse

free

Lucy the heart-turning cat

...x m3x25mm shcs 1 x m3 washer 2 x 623zz bearing mounting insert the two 623zz bearing in lucycatbody....

thingiverse

free

wheel for shopping trolley bag by antontre

...wheel. this new version just need bearing (for ex 623zz and a small metal rod to block the wheel....

thingiverse

free

Linear bearing module Prusa i3 by Zakatnyi

...- 2 pcs; m3-12 - 3 pieces; bearing - 623zz (3 10...

thingiverse

free

Bearing Oldham Coupler by 83scr

...coupler by 83scr thingiverse you will need 8 x 623zz bearings 8 x (3mm x 10mm bolts and 3mm...

thingiverse

free

Drive Shaft for Toyota model parts by ericthepoolboy

...required 8 - m3 x 10mm shcs 8 - 623zz bearings 1 - 180mm long 3mm rod 8 -...

thingiverse

free

Sunhokey Horizontal Spool Mount by Wonky

...kit so i made a spool holder with some 623zz bearings and 3mm rod i...

thingiverse

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Key chain spinner withe 5mm nuts by kevink18

...spinner withe 5mm nuts by kevink18 thingiverse i used 623zz 3x10x4mm ball bearings. and 5mm nuts for outer weights...

thingiverse

free

Changestruder, changeable extruder & wire-puller with carriage by th3we

...carriage. this is designed for lm8uu 8mm bearing, and 623zz leveler bearing and mk7 gear drive. the connector is...

thingiverse

free

Open Linear bearing replacement (fi 10mm) - SME10GUU by wwwektor

...linear bearing based on cheap and popular roller bearing 623zz (3mm x 7mm x 3mm) you need: 6x 623zz...

thingiverse

free

Gripper for 6DOF Robot Arm

...details used in this part: 3mm bolts and nuts 623zz (3x10x4mm) lx16a smart servo demo...

thingiverse

free

Yet another CNC milling machine for PCB by Vladimir_Trondin

...another cnc milling machine for pcb by vladimir_trondin thingiverse 623zz bearing - 36pcs 608zz bearing - 2pcs nema 17...

thingiverse

free

EXTRUDER Planetary NEMA 17 Mk7 by Gudrimelis

...x bolt m5 1 x pulley mk7 1 x 623zz bearing 2 x 605zz bearing 1 x bolt...

thingiverse

free

Mini-Kossel top Spoolholder by Jooxoe3i

...m3 nuts x4 m3x8 fillister-head x1 m3x16 countersunk x3 623zz ballbearings...

thingiverse

free

Parametric flanged and crowned belt idler for 623 bearings by hyperair

...belts won't fall off if misaligned. it uses 2x 623zz bearings that can be pushed in from ether side...

thingiverse

free

Raptor/Volantex Firstar 2.0 camera pan by Andtas

...20mm m3 bolts 4x m3 washers 4x 623zz bearings https://www.banggood.com/10pcs-623zz3x10x4mm-ball-bearings-shielded-radial-bearings-p-1049663.html?rmmds=search ...

thingiverse

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Duet3d Filiment monitor sensor Version 2 by rdhoke

...is held in place against the hob via the 623zz bearing and bed level spring. this is in progress...

thingiverse

free

X belt tentioner for 606ZZ bearing for the Prusa i3 Hephestos by Alejoo

...belt tensioner using a 606zz bearing instead of the 623zz the main bearing hole uses a 6mm bolt and...

thingiverse

free

Lightweight spool-holder v26 for Voxelab Aquila & Ender3 by fukumay - Thingiverse by fukumay

...on many ender 3 series models. 623zz bearing - misumihttps://jp.misumi-ec.com/procurement/vona2/detail/221000531116/?hissucode=623zz for reference, round bars are sold at diy store...

thingiverse

free

Prusa MK3 MK2S X axis pulley 24T by UltiMike

...using this design: https://www.thingiverse.com/thing:2763870 , it was made for 623zz bearing and as i just have f623zz so i...

thingiverse

free

Ender 5 Plus Filament Guide for Direct Drive Conversion by SnoopD0ugFPV

...cleat to mount v1 - requires 1 m3x20 3 623zz bearings 1 m5x5 1 m5 cleat to...

thingiverse

free

Conventional Bearings based 3D Printer by Vladimir_Trondin

...conventional bearings based 3d printer by vladimir_trondin thingiverse bearings 623zz - 30pcs bearings mr115zz - 3pcs bearings 608zz -...

thingiverse

free

Kossel mini - 3DPrinted flange idler by rapps

...( and are way more expensive than the normal 623zz ,on a closer look, you can reproduce the flanged...

thingiverse

free

Prusa i3 X & Y axis belt tensioner pulley by MiksPrusa

...axis. it has a 10mm inner diameter to fit 623zz bearing. uploaded the solidworks file as well. have...

thingiverse

free

Bearing Block 10mm outside diameter, 4mm width by makeme12

...including : -inner diameter x outer diameter x thickness- 623zz (size: 3 x 10 x 4mm) mr104zz (size: 4...

thingiverse

free

Spring-loaded Replicator 1 Drive Block - Modified Lever by gyronictonic

...4mmhttp://www.mcmaster.com/#92010a112 1 x m3 x 16mmhttp://www.mcmaster.com/#91420a126 1 x 623z bearinghttp://www.robotdigg.com/product/62/623zzball-bearing ...

thingiverse

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Filament Spool Holder by Raj3d

...to replace spools easily. i've used 2 nos of 623zz bearings. i've only uploaded the modified files and rest...

thingiverse

free

Kossel Mini V Roller by electronhacks

...roller for the kossel mini that uses a single 623zz bearing pressed in. i spun the print using a...

thingiverse

free

Simple DUAL Chimera Extruder, designed for MZ3D printers by Dima_pb

...m3x40 bolts two m3 nuts two spring two bearings 623zz two filament drive gear 11mm diameter ten m3x10 bolts...

thingiverse

free

Ruixin Pro RX-008 +Upgrade by ilyav3

...by ilyav3 thingiverse линейный подшипник lm6uu https://aliexpress.ru/item/33042274879.html?&sku_id=67414260231 2 подшипника 623zz https://aliexpress.ru/item/33007748921.html?&sku_id=67082629060 фиксатор. стопорное кольцо, которое держит шарнирный узел на...

thingiverse

free

Tiny Ball Mill with Nema 17 Stepper Motor

...ballmill to use with a nema17 stepper. im using 623zz bearings with a metal rod which i slided heatshrink...

thingiverse

free

Filament Spool Support by kmxsoft

...determined by the user to provide the spindle. optionally 623zz miniature ball bearing 3mm x 10mm x 4mm can...

thingiverse

free

ender 3 bearing adapter for spool holder by dkacor

...nuts 3-4 m3 bolts 15mm 2 ball bearings 3x10x4mm (623zz short...

thingiverse

free

Ball bearing based slider for 8 mm rod by senimore

...mount size 30 x 70 mm. 8 mr83zz or 623zz bearings 16 3x 6 x 0.6mm washer 8 22...

thingiverse

free

JGAurora A5 A5S A3S X-Belt Tensioner by DankCat

...x m3 nut 2 x 623zz 3x10x4mm bearing or f623zz flanged bearing 3x10x4mm 2 x m3 washer 2 x...

thingiverse

free

Scissor mechanism spool holder with clip by CookiemonsterI3

...this is a fully printable object, but use of 623zz bearings is preferred for smooth...

thingiverse

free

Small worm gearbox by boredpenguin

...ever go back and fix the design parts used: 623zz bearings x4 3mm inner flat washers x8 3mm rod...

thingiverse

free

Folger 2020 i3 X Belt Tensioner by jmbneaf

...nut (to clamp/hold together), and two f623z bearings (two 623zz bearings will work also) here is the revised...

thingiverse

free

Joint5 and Joint6 parts for 6DOF Robot Arm

...parts: 3mm bolts and nuts 693zz bearings (3x8x4mm) and 623zz (3x10x4mm) lx16a smart servos 2mm pitch timing belt (gt2)...

thingiverse

free

Joint3 and Joint4 parts for 6DOF Robot Arm

...parts: 3mm bolts and nuts 693zz bearings (3x8x4mm) and 623zz (3x10x4mm) lx16a smart servos 2mm pitch timing belt (gt2)...

thingiverse

free

Joint1 (base) and Joint2 parts for 6DOF Robot Arm

...parts: 3mm bolts and nuts 693zz bearings (3x8x4mm) and 623zz (3x10x4mm) lx16a smart servos 2mm pitch timing belt (gt2)...

thingiverse

free

28BYJ-48-5V Scara Bot by 103798

...4x driver board uln2003 some nuts & bolts 4x 623zz bearing 4x 608zz...

thingiverse

free

Bowden Extruder (Acrylic) by wkkpatrick

...drive gear-12mm, 40 teeth, 5mm inner x 1 -bearing 623zz x 1 -m3 washer 8x0.8 x 8 -hex screw...

thingiverse

free

PG35L-048 Bowden Extruder V-Slot or 2020 Tslot End Mount by runninfarmer

...by okatake. i made it so it could use 623zz support bearings as opposed to the 603zz's. i also...

thingiverse

free

Fully 3D Printable 2 Stroke Electro-Magnetic Engine Model by ArtemX

...2; подшипник 608zz | bearing 608zz - 2; подшипник 623zz | bearing 623zz - 1; болт м3 25 мм...

thingiverse

free

Handle-spool_holder by dasaki

...long 4x m3 washers 4x m3 autolocking nuts 4x 623zz bearings for the hinges 4x m4 nuts 4x m4x25mm...

thingiverse

free

Easy Extruder by ichibey

...extruder by ichibey thingiverse parts drive gear:mk8(1.75filament type) guide bearing:623zzparralel pin 3mm(dia)x10mm(length) tube fitting:4mmtube type,m5 ガイドベアリングの取付く穴は、プリント後に3mmドリル若しくはリーマーを通してください。...

thingiverse

free

Tensor para el eje Y de impresora Prusa Tairona by somosmaker

...se utiliza en combinación con la guía de rodamiento 623zz de esta misma colección. permite tensionar la correa gt2...

thingiverse

free

UM reduced extruder for 3.0mm filament by EazyBreezy

...length 1x - extruder drive gear 3.0mm 1x - 623zz bearing 3x10x4 2x - 625 bearings 5x16x5 5x -...

thingiverse

free

Spacer for Delrin V-wheels by peridot_faceted

...slots of 1515 extrusion. these wheels each hold two 623zz bearings, but it is impossible to grip them tightly...

thingiverse

free

Roller (pin) bearing 5x16x5mm by jpnurro

...size is lr605 (625zz). (for the scaling down to 623zz x&y - 62,5% and z - 80%, printed at...

thingiverse

free

EEZYbotARM MK2 Bearings mod by q3ok

...and also m4 washer are recommended link135 - two 623zz bearings (i used m3 screws instead of m4 to...

thingiverse

free

Toyota 22RE transmission model gears - R2ZZ bearings by poboy

...the original design calls for 3 mm rods and 623zz bearings. however, the rods i obtained have tolerances on...

thingiverse

free

Belt holder with tension adjustment by kfceric

...2 pcs 2020 m3 self lock nut x 4pcs 623zz bearing x 2pcs m3 x 0.7mm washer x 5pcs...

thingiverse

free

Y Axis Belt Tenstioner for 606ZZ bearing easy removing for Prusa i3 Hephestos by Alejoo

...but should work with all prusas. instead of the 623zz of the hephestos, i used a 606zz bearing. the...

thingiverse

free

Prusa i3 parts (extruder and carriage, x-end vertical, and z-top stabilizers) by ch1t0

...as i2 45mm between axes (center to center) x-idler 623zz bearing z-axis top 2x685zz bearing extruder compatible with all...

thingiverse

free

Wind Turbine Éolienne by meireles

...éolienne by meireles thingiverse you will need 2 bearings 623zz (3x10x4) . 2x 3mm nut and 2x washers ....

thingiverse

free

Anet A8 Belt tensioner Y axis by saschai

...cheeks for bearing. i installed bearings 623zz instead of f623zz old very tired ... p.s. adapted by for abs...

thingiverse

free

Swiveling Idler For 2 Wheel Robot by AdamoRobinson

...to export that for thingiverse...) bill of materials: 4x 623zz ball bearings (dimensions 3mm id x 10mm od x...

thingiverse

free

Folgertech 2020 5mm Threaded Rod stablizer by organizedfellow

...my first 3d model :) you will need two 623zz bearings for this. it comes with two pieces and...

thingiverse

free

Delta Bearing U-Joint by tempo502

...with special bearings (like the kossel pro u-joints) but 623zz is a common and cheap size that fits m3...

thingiverse

free

Geared Bowden Extruder for MK7 by Mamath

...: https://fr.aliexpress.com/item/stainless-steel-3d-printer-filament-extruder-pulley-gear-mk7-teeth-drive-gear-with-m4-hexagonal-screw/32763530868.html?isorigtitle=true 2 bearing mr105zz : https://eu.banggood.com/wholesale-warehouse-10pcs-5-x-10-x-4mm-metal-sealed-shielded-deep-groove-ball-bearing-mr105zz-wp-eu-62635.html?rmmds=myorder 1 bearing 623zz ...

thingiverse

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Bearing Spool Holder by StephensEngineering

...not larger than 5mm, and about 3-10mm long 2x 623zz ...

thingiverse

free

MAZDA RX7 (22/x) / Accessories Bracket add-on by dancan13f

...accessories (26) 9 x m3 threaded insert 2 x 623zz bearing 1 x m3 lock nut 5 x m3...

thingiverse

free

Parametric Shoulder Joint for SpotMicroESP32 by projunk

...head) m3 nut with nylon insert (1x) 1 bearing 623zz remark: the part limbtopshell.stl is the same as the...

thingiverse

free

Bearing block for table remixed by Weeble

...m3x16 screws 3 - m3 lock nuts 3 - 623zz bearings*** just make sure to buy decent bearings, if...