Introduction
Extended Linear Bearing are core components designed for high-precision linear motion. With optimized structures and materials, they significantly enhance load capacity, stroke stability, and service life. The extended length design reduces connection points, making them ideal for long-stroke, high-load applications such as automation equipment, CNC machines, and robotics.
product highlights
1. Extended Service Life: Utilizes GCr15 bearing steel or ceramic balls with precision grinding, extending lifespan by over 300%.
2. High Load Capacity: The extended structure increases ball contact area by 20%~50%, with static load up to 6200N (e.g., LMH35UU model).
3. Low-Friction Operation: Double-circulation ball design (double-liner type) ensures smooth motion with a friction coefficient as low as 0.001.
4. Self-Aligning Function: Special curved surface design compensates for installation errors, ensuring precision (e.g., self-aligning bearings with 27x longer lifespan).
5. Robust Environmental Resistance: Stainless steel (SUS440C) and IP65 protection suit humid and dusty environments.
Product Information
Application Scenarios
Installation & Maintenance
1. Installation:
Use specialized tools to press-fit into housings; avoid striking seals1.
Flanged types allow direct bolt fixing, saving space9.
2. Maintenance:
Re-lubricate with lithium-based grease every 6 months or after 1000km of travel15.
Install dust covers in harsh environments to prevent contamination15.
Customization Services
- Size Options: Non-standard dimensions available (3~60mm ID, 23~192mm length)21.
- Material Upgrades: SUS440C stainless steel, ceramic balls, etc.4.
- Special Designs: Flanged, split-type, high-temperature coatings (e.g., Ni-P plating)5.
FAQ
Q1: How do I select the right Extended linear bearing for my equipment?
A: Choose based on:
Inner Diameter (ID): Match the shaft diameter (3~60mm common).
Length & Load: For long strokes, choose extended types (20%~50% longer than standard); for high loads, prefer LMH series (e.g., LMH35UU with 6200N static load).
Environmental Needs: SUS440C stainless steel (IP65 protection) for wet/dusty environments; precision grade (±0.005mm) for high-accuracy equipment.
Q2: What should I note during installation of extended bearings?
A: Tools: Use a special sleeve for press-fitting; avoid striking seals to prevent damage.
Installation Tolerance: Self-aligning bearings compensate for ≤1° tilt; non-aligning types require parallelism within ±0.02mm.
Fixing Method: Flanged types allow direct bolting for space-saving; press-fit types require H7 tolerance housings.
Q3: What is the maintenance cycle? How to lubricate?
A: Regular Maintenance: Re-lubricate with lithium-based grease (e.g., NLGI 2) every 6 months or 1000km of travel.
Harsh Environments: Inspect monthly in dusty/wet conditions; add dust covers (e.g., PU shields) and reduce lubrication interval to 3 months.
Cautions: Wipe the guide rail with a clean cloth before lubrication; avoid mixing different greases.
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