
Dry-Running 20x32x45mm J-LIN-01R-20 RJUM-01-20 Linear Bushing Price
| Item No : | RJUM-01-20 / J-LIN-01R-20 |
| Size (d*D*B) : | 20x32x45mm |
| Material : | Aluminum Alloy + Engineering Plastic |
| Lead Time : | 3-5 days |
| Weight : | 0.05KG |
| MOQ : | 50 pcs |
⚙️Product Description:
Upgrading to maintenance-free linear systems without messy oils? Our RMO Brand RJUM-01-20 / J-LIN-01R-20 Plastic Linear Bearing (20x32x45mm) is the ultimate dry-running solution. Swappable with standard LM20UU dimensions, it thrives in dust, water, and cleanrooms. As a B2B trade expert, we supply cost-effective RMO brand liners or source original global premium polymer brands for your wholesale distribution.

⚙️Product Features:
- 100% Lubrication-Free: Eliminates external grease or oil lubricants entirely, operating via embedded solid lubricants within the high-performance polymer matrix.
- Dirt & Dust Resistant: Unlike caged metal bearings, particles do not get trapped; instead, the liner wipes away debris for uninterrupted tracking.
- Corrosion & Washdown Proof: Made from high-grade engineering plastics and anodized aluminum, making it ideal for wet, chemical, or saltwater exposures.
- Exact LM20UU Interchange: Matches standard Japanese and European dimensions (20mm bore, 32mm OD, 45mm length) for hassle-free system upgrades.
- Flexible Multi-Brand Sourcing: Optimize your trade margins with direct RMO factory bulk supply, or source global tier-1 polymer bearing legacy brands.
⚙️Product Applications:
Specially designed for clean, oil-free operations and severe environments, the RJUM-01-20 bearing is widely utilized in:
- Desktop and industrial 3D printers, CNC routers, DIY laser engravers, and camera sliders.
- Food processing machinery, pharmaceutical packaging equipment, and bottling lines requiring zero oil contamination.
- Medical diagnostic instruments, laboratory automation devices, and cleanroom semiconductor handling equipment.
- Textile machinery, woodworking equipment, and agricultural machinery exposed to high outdoor dust.
- Global industrial hardware distributors, Amazon/eBay B2B store chains, and linear motion component wholesalers.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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⚙️Obtain Certificate:
About Rimao
⚙️Technical Parameters:
| Model No. | RJUM-01-20 / J-LIN-01R-20 |
| Interchange Code | Dimensionally equivalent to standard LM20UU |
| Size | 20x32x45mm |
| Housing Material | Anodized Aluminum / High-Grade Alloy |
| Liner Material | Solid Lubricant Engineering Plastic Polymer |
| Lubrication Type | 100% Dry-Running / Maintenance-Free |
| Working Temperature Range | -40°C to +120°C |
| Key Benefits | Dust Resistant, Corrosion Resistant, Low Noise |
| Package | |
| Brand | RMO/Neutral/OEM/Other Brands |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Service | Support Sample Testing |
| Shipping | |
| Payment | 100% T/T, or 30% T/T In Advance ,70% T/T After Finished Production |

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