LM40UU Linear Bearings

LM40UU Linear Bearings
Part Number LM40UU Weight(Kg) 0.520
d 40 Dynamic Load Co(N) 3120
D1 60 Static Load Cor(N) 5000
B 80

LM40 Linear Bearing | LM40UU / LM40OP Types Available

The LM40 linear bearing is a heavy-duty high-precision linear motion component built for low-friction and stable linear sliding. It features large load capacity, high positioning accuracy and reliable high-speed stability, widely applied in medium and heavy industrial automation equipment. Available in LM40UU closed type and LM40OP open type, this bearing provides durable and cost-effective linear motion solutions for mechanical transmission and automation systems.

LM40UU vs LM40OP | Model Differences

LM40UU (Closed Type): Features a fully closed double rubber sealing structure with full dustproof protection. It effectively isolates dust, debris and contaminants and locks in internal lubrication, enabling long-term maintenance-free operation. Ideal for standard workshops and dusty industrial environments with regular linear stroke movement.

LM40OP (Open Type): Adopts an open hollow structure with built-in oil grooves for easy lubrication and efficient heat dissipation. It reduces heat accumulation during continuous high-frequency operation, perfectly suited for long-stroke, high-speed and heavy-load linear motion working scenarios.

Material Introduction

Bearing Steel Shell & Steel Balls: LM40 linear bearings adopt high-quality bearing steel with professional heat treatment. High hardness and excellent wear resistance ensure stable load-bearing performance and ultra-smooth sliding, extending service life under continuous heavy-duty operation.

Engineering Plastic Retainer & Rubber Seals: High-toughness engineering plastic retainer supports flexible steel ball circulation with low noise and low running resistance. LM40UU is equipped with wear-resistant rubber seals for stable dustproof and anti-fouling performance.

Product Features

Ultra-low friction for smooth linear motion. High positioning accuracy and stable repeatability. Dual structural designs adapt to various speed and load conditions. Reliable heat dissipation and dustproof capability. Standard size for easy installation and replacement.

Application Scenarios

LM40 linear bearings are widely used in CNC machine tools, heavy-duty automation sliding platforms, industrial robotic arms, large packaging machinery and automated production lines. LM40UU fits conventional and dusty working environments; LM40OP is ideal for high-speed, long-stroke and high-precision heavy-duty automation equipment.

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