Linear Bearings: Difference between revisions
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*RJMP has 16 mm OD - [https://www.aliexpress.com/i/4000347996332.html] | *RJMP has 16 mm OD - [https://www.aliexpress.com/i/4000347996332.html] | ||
*RJ4JP - has 15 mm OD - [https://www.aliexpress.com/item/32838729543.html] | *RJ4JP - has 15 mm OD - [https://www.aliexpress.com/item/32838729543.html]. 8x15x24. | ||
Revision as of 03:27, 26 June 2021
- LM12 = 12mm bearings
- LM25 = 25mm bearings
- LMB8 = 1/2" bearings
- LMB16 = 1" bearings
Manufacturing
RJ4Jp - iglidur by Igus - here is what it's made of:
- POM ( polyoxymethylene ) is the same as Acetal - [1]. $30 on Aliexpress - [2]
- POM printed bearings on Ultimaker - [3]
- Download - [4]. 3 grams each, so $30 roll of filament means 10 cents per bearing. It would be worth to print these effectively to reduce costs of building 3D printers.
- PA66 is nylon 66. [5]
RJMP 8 mm vs RJ4JP
Hint: Make sure you have the correct version - ODs are different