
High Precision LME30UU CNC Guide Bushing Linear Motion Bearing
| Item No : | LME30UU |
| Size (d*D*B) : | 30x47x68mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.325KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
The LME30UU (30 x 47 x 68 mm) is a European standard linear motion ball bushing equipped with dual synthetic rubber contact seals (UU) to prevent contaminant ingress in high-dust industrial environments. Featuring a 30mm shaft bore, a 47mm outer diameter, and a 68mm overall length, it incorporates a heat-treated chromium steel outer sleeve and high-density ball tracks to ensure smooth, low-friction axial travel along hardened guide shafts. We provide factory-direct inventory of our proprietary RMO brand LME30UU bearings for cost-conscious bulk buyers, alongside strategic global brand sourcing options for high-end industrial automation OEM applications.

⚙️Product Features:
- European Standard LME Geometry: Engineered to ISO/European metric standards (30x47x68mm) for direct interchangeability across global automation equipment.
- Dual-Lip Rubber Contact Seals (UU): Double rubber seals retain internal lithium grease while effectively preventing fine metallic dust and coolant intrusion.
- Hardened Chrome Steel Outer Sleeve: Precision-ground GCr15 outer cylinder provides extreme rigidity and minimal deformation under heavy side loads.
- Multi-Row Recirculating Ball Guidance: High-precision steel ball circuits deliver smooth rolling friction, minimal stick-slip, and low operating noise during high-speed stroke motion.
- Flexible Dual-Track Supply: Direct factory stock of proprietary RMO brand bearings for cost optimization, with premium international brand options upon client request.
⚙️Product Application:
- CNC Machine Tools & Automated Slide Units: Multi-axis CNC routers, automated linear slides, and laser cutting positioning gantries.
- 3D Printing & Industrial Robotics: Heavy-duty 3D printer gantry rails, pick-and-place robotic arms, and linear motion modules.
- Packaging & Textile Machinery: Automated labeling machinery, high-speed textile feeding slides, and sorting conveyor mechanisms.
- Plastic Injection & Woodworking Equipment: Mold ejection guidance rods, woodworking edge-bander linear units, and press machines.
⚙️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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⚙️Technical Parameters:
| Model No. | LME30UU / LME 30 UU |
| Size | 30x47x68mm (Inner d x Outer D x Total Length/Height H) |
| Bearing Category | Linear Bearing / European Standard Linear Bushing |
| Sealing Type | Dual-Lip Rubber Seals on Both Sides (UU) |
| Outer Sleeve Material | Precision-Ground GCr15 Chrome Steel |
| Cage material | Nylon / Steel |
| Precision Rating | P0 / P6 (ABEC-1 / ABEC-3) Optional |
| Ball Circuit Count | 6 Ball Rows |
| Target Machinery | CNC Machines, Linear Modules, Industrial Robots, Packaging Drives |
| Brand | RMO/Neutral/OEM/Other Brands |
| Packing Method | |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping Port | Guangzhou, Ningbo, Shanghai |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |

| Model No. | d | D | H | m |
| LME3 | 3 mm | 7 mm | 10 mm | 1.35 g |
| LME4 | 4 mm | 8 mm | 12 mm | 1.9 g |
| LME5 | 5 mm | 12 mm | 22 mm | 11 g |
| SDE5 | 5 mm | 12 mm | 22 mm | 10 g |
| LME8 | 8 mm | 16 mm | 25 mm | 20 g |
| SDE8 | 8 mm | 16 mm | 25 mm | 20 g |
| SDE10 | 10 mm | 19 mm | 29 mm | 27 g |
| LME12 | 12 mm | 22 mm | 32 mm | 41 g |
| UB-12A | 12 mm | 22 mm | 32 mm | 41 g |
| LME16 | 16 mm | 26 mm | 36 mm | 57 g |
| SDE16 | 16 mm | 26 mm | 36 mm | 53 g |
| LME20 | 20 mm | 32 mm | 45 mm | 91 g |
| LME25 | 25 mm | 40 mm | 58 mm | 215 g |
| SDE25Y | 25 mm | 40 mm | 58 mm | 170 g |
| LME30 | 30 mm | 47 mm | 68 mm | 325 g |
| LME40 | 40 mm | 62 mm | 80 mm | 705 g |
| LME50 | 50 mm | 75 mm | 100 mm | 1130 g |
| LME60 | 60 mm | 90 mm | 125 mm | 2220 g |
| LME80GA | 80 mm | 120 mm | 165 mm | 5140 g |
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