Is this 3D model free to download?

Yes, Square Rail Linear Ball Bearing is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by 3DPRINTINGWORLD, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Square Rail Linear Ball Bearing 3D printable model by 3DPRINTINGWORLD

Square Rail Linear Ball Bearing

Source: Thingiverse by 3DPRINTINGWORLD

The Square Rail Linear Ball Bearing is a free printable 3D model from Thingiverse by 3DPRINTINGWORLD. ##Square Rail Linear Ball Bearing This is a 3D printed square rail linear ball bearing that utilizes standard .177 cal BB's. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

582 saves Source: Thingiverse Updated 2026-10-24 License: CC-BY-NC · non-commercial 2 makes Category: Vehicles & RC

Tags: ball bearing, bearing, bearing rail, linear bearing, linear motion

About this model

##Square Rail Linear Ball Bearing This is a 3D printed square rail linear ball bearing that utilizes standard .177 cal BB's. It has screws on the carriage for adjusting the bearing preload. The rail is 220mm long in total and there are four m3 mounting holes on the rail every 60mm. I have not tried it but I would assume that the rails could be mounted one after another for longer travels. The carriage has four M3 nut traps and four holes for M3 heat-set thread inserts. I also designed some stops that fit into a mounting holes on the rail to retain the bearing on the rail to keep the balls from falling out. ##Required - .177 cal BB's (40x) - M3 SHCS X 10mm lg. (4x) - M3 SHCS x 16mm lg.(2x) - M3 Nut (6x) ##Assmebly First install the preload screws and nuts before assembly but do not tighten …

Frequently asked questions

Is this 3D model free to download?: Yes. Square Rail Linear Ball Bearing is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by 3DPRINTINGWORLD.
Who made this model?: Designed by 3DPRINTINGWORLD, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.