--- product_id: 52619698 title: "8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4)" brand: "drylin" price: "£19.85" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/52619698-8mm-igus-drylin-rj4jp-01-08-3d-printer-solid-polymer store_origin: GB region: United Kingdom --- # 8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) **Brand:** drylin **Price:** £19.85 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** 8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) by drylin - **How much does it cost?** £19.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/52619698-8mm-igus-drylin-rj4jp-01-08-3d-printer-solid-polymer) ## Best For - drylin enthusiasts ## Why This Product - Trusted drylin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description 8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) ## Features - About this item 8mm Inner Shaft 15mm Outer diameter 24mm Length LM8UU Replacement ## Images ![8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) - Image 1](https://m.media-amazon.com/images/I/81icNy-3-KL.jpg) ![8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) - Image 2](https://m.media-amazon.com/images/I/71RBD-scqWL.jpg) ![8mm Igus Drylin RJ4JP-01-08 - 3D Printer Solid Polymer LM8UU Bearing (4) - Image 3](https://m.media-amazon.com/images/I/815qD8HTI8L.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Customer Reviews ### ⭐⭐ Quiet - but tolerances are an issue *by C***Y on Reviewed in the United Kingdom on 21 July 2019* I bought these about 6 months ago when I built my own Original Prusa Clone using the bear upgrade frame.When it came to bearings, I was aware of cheap 'n nasties from China, and didn't want to use them. So, settled on these.They are quiet, and they are smooth. And for most applications, these would be ideal. However, I found that they have too much play on the Y axis, that the bed had far too much play - a lot more than a Original Prusa. There's also a little play on the extruder body.I decided to replace with IKO Japanese LM-8UU bearings, that were much more costly, however all my axis are now firm. Quality of prints also increased, which I was hoping for but didn't expect. Sure, the new bearings aren't as quiet, nor as cheap, but as the printer is kept in a Lack enclosure, it's not a problem.The bottom line is, if you want things to spec, with tight tolerances, then don't use these. Yes they are quiet, but on 3D printers where precision is key with such small print diameters, then don't bother with this. Get quality ball bearings and build an enclosure. ### ⭐⭐⭐⭐⭐ Well worth converting to these bearings, the near silence now is deafening! *by P***P on Reviewed in the United Kingdom on 11 June 2018* I replaced the original noisy, notchy and poor linear bearings provided with the 3D printer with these Igus bearings. I was not disappointed, they are near silent, smooth in operation and providing you set them up correctly, otherwise they can bind due to their tighter tolerances, they are perfect. I used them on the X & Y axis and found that over tightening the bed to get it level actually put upward pressure on the Y bearings, that then made them bind. My mistake, the acrylic bed carrier was actually being slightly pulled up, which pulled the bearings up causing the binding. Resetting the bed tensioning to a much lower tension, solved the problem. Subsequently I replaced the acrylic bed carrier with an aluminium one, as the flexing is not good, this solved the problem. This would have been an issue with the old bearings but harder to detect as though they appeared to be working they actually masked the flexing. ### ⭐⭐⭐⭐⭐ Ideal upgrade if noise is a concern. *by S***S on Reviewed in the United Kingdom on 30 January 2018* Perfect.Had to trim mine down to fit my printers carriage but they have removed a significant amount of noise from the machine. I would say they are a little stiffer than a standard ball bearing, but do move without any binding. They were the same diameter externally as my bearings but have read that the LM8UU can vary, so worth double checking.Mine clipped in place into the carriage fine, and after cutting feels like they are a sturdy replacement. The 12 pack has allowed me to do all 3 axis on my CTC printer.I have reduced the noise which is great as my 3D printer is right next to where I work all day, but will the additional stiffness cause extra strain on the motors? Time will tell I guess, I am hoping they will 'bed in' a bit and it will be fine. When you put one on the steel rod and compare it directly to the noise a standard bearing makes you will feel instantly as though you made the right choice. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/52619698-8mm-igus-drylin-rj4jp-01-08-3d-printer-solid-polymer](https://www.desertcart.co.uk/products/52619698-8mm-igus-drylin-rj4jp-01-08-3d-printer-solid-polymer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*