Introduction
The LM30UU stainless steel linear bearing is a 30mm bore linear ball bushing bearing designed for applications requiring enhanced corrosion resistance. Built from SUS304/SUS440C stainless steel, this linear slide bushing delivers smooth, low-friction linear motion in demanding environments where standard carbon steel bearings would corrode or contaminate.
Compared to the standard LM30UU, the stainless steel version retains identical dimensional compatibility while offering superior resistance to moisture, chemicals, and oxidation - making it the preferred choice for food processing, medical equipment, semiconductor manufacturing, and marine automation systems.
LM30UU Stainless Steel – Dimensions & Specifications
| Parameter | Value |
|---|---|
| Bore Diameter (d) | 30 mm |
| Outer Diameter (D) | 45 mm |
| Length (L) | 64 mm |
| Length Tolerance | 0 / -300 μm |
| Ball Rows | 6 |
| Weight | 250 g |
| Radial Clearance (max) | -8 μm |
| Dynamic Load Rating (C) | 1,570 N |
| Static Load Rating (C₀) | 2,750 N |
| Material | SUS304 / SUS440C Stainless Steel |
| Seal Type | Open / Sealed (UU) |
| Tolerance Class | Standard / Precision (P) |
Custom bore sizes, seals, and packaging available upon request.
Why Choose Our LM30UU Stainless Steel Linear Bearing
Corrosion Resistance
The stainless steel housing and ball elements resist rust, oxidation, and chemical exposure - ideal for wet, humid, or washdown environments where standard carbon steel fails.
01
Dimensional Interchangeability
Fully compatible with standard LM30UU mounting dimensions. Drop-in replacement without redesigning your linear motion system.
02
Smooth, Low-Friction Motion
Precision-ground ball tracks and tight tolerance control (radial clearance ≤ -8 μm) ensure consistent, vibration-free linear travel throughout the bearing's service life.
03
Precision Manufacturing
Produced on 126 CNC lathes and 52 CNC grinding machines under ISO 9001-certified quality management. Each unit passes strict dimensional and load-capacity inspection before shipment.
04
Custom Options Available
Open or sealed configurations, custom packaging, logo printing, and OEM solutions available. Samples provided for qualification testing.
05
Applications of 30mm Stainless Steel Linear Bearing
The LM30UU stainless steel linear slide bushing is widely specified in B2B industrial applications including:
Food & Beverage Machinery
corrosion resistance meets hygiene requirements in washdown environments
Medical & Pharmaceutical Equipment
chemical resistance for sterilization-compatible assemblies
Semiconductor & Electronics
cleanroom-compatible linear motion components
Textile & Printing Machinery
reliable linear guidance under continuous operation
Packaging Automation
precise slide motion in high-cycle automated packaging lines
Marine & Offshore Equipment
salt spray and humidity resistance
Why Source From Zhejiang Siqiang Bearing
Zhejiang Siqiang Bearing Manufacturing Co., Ltd. has specialized in linear motion bearings since 2007, operating from a 19,800 m² production facility in Lishui, Zhejiang, China.
- ISO 9001 Certified quality management system
- ROHS & REACH Compliant (certified by Youer Hongxin)
- 100+ CNC and grinding machines; 141 production staff
- Registered brands: SQ and Siqiang Bearing
- Products exported to Southeast Asia, Europe, Africa, and South America
- 1-year warranty on all bearing products
- OEM packaging, custom labeling, and sample prototyping supported
Frequently Asked Questions – LM30UU Stainless Steel Linear Bearing
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