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Models include: • Collapsing Swords • Collapsing Lightsabers • Planetary containers and fidgets • Puzzle presents gift boxes • Print-in-place grippers • Miscellaneous designs

In the Armory you will also gain access to my private discord server! In the server you can chat with other collapsing connoisseurs about 3D printing, ask questions about printing my models, share photos of your prints and more!

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Models include: • Collapsing Swords • Collapsing Lightsabers • Planetary containers and fidgets • Puzzle presents gift boxes • Print-in-place grippers • Miscellaneous designs

In the Arsenal you also gain access to my private discord server! In the server you can chat with other collapsing connoisseurs about 3D printing, ask questions about printing my models, share photos of your prints and more!

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This membership is for companies and businesses who wish to show off printed versions of my designs for promotional reasons. A active membership grants you access to my entire library of designs and the ability to use my printed designs for promotional reasons. The selling of prints or sharing of the files is still prohibited.

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This plan allows members to host and share the actual files for up to three of my designs each month. You will also receive access to my entire library while while subscribed. An active subscription is required while files are being distributed and the files must retain the original noncommercial license. The factory will also you gain access to to my private discord server!

3D Printing World

Double Row Linear Ball Bearing

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Double Row Linear Ball Bearing 3d model
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Double Row Linear Ball Bearing 3d model
Double Row Linear Ball Bearing 3d model
This model is restricted by licensing terms. 
76 Likes154 DownloadsJune 13, 2023
This model is restricted by licensing terms. 


Linear Ball Bearing Double Row Version

This 3D printed square rail linear ball bearing utilizes four rows of .177 cal BB's (aff) that recirculate.

This bearing is similar to the single row version but having dual rows allows for; far greater load capabilities, heaver preloads as the balls are easier to recirculate because each row is only making contact with the rail at one point, and there less slop as the two rows on each side trap the rail better.

The rail is 220mm long and there are four M4 mounting holes on the rail every 60mm. I also designed some stops that fit into the mounting holes on the rail to retain the bearing on the rail to keep the balls from falling out. See the Assembly Video

Required.177 cal BB's • M3 SHCS x 16mm lg.(4x) • M3 Nut (4x) I made a 3D printer called the Mulbot uses the same 3D printed bearing.



Support and Licensing If you would like to help support more free models please consider joining my Thangs Membership To get permission to sell physical copies of my models, consider joining my Patreon


76 Likes154 DownloadsJune 13, 2023




This model is restricted by licensing terms. 
76 Likes154 DownloadsJune 13, 2023
This model is restricted by licensing terms.