LM18UU Linear Bearings

LM18UU Linear Bearings
Part Number LM18UU Weight(Kg) 0.085
d 18 Dynamic Load Co(N) 860
D1 30 Static Load Cor(N) 1350
B 40

LM18 Linear Bearing | LM18UU / LM18OP Types Available

The LM18 linear bearing is a standard high-precision linear motion component built for low-friction and high-stability linear sliding. It features high load capacity, precise positioning and consistent high-speed performance, widely used in medium-load precision automation machinery. Available in LM18UU closed type and LM18OP open type, this bearing offers reliable and cost-effective linear motion solutions for industrial mechanical systems.

LM18UU vs LM18OP | Model Differences

LM18UU (Closed Type): Designed with fully closed double rubber seals for complete dustproof protection. It effectively blocks dust, debris and impurities while locking internal lubricant, enabling long-term maintenance-free operation. Suitable for standard and dusty industrial environments with regular linear stroke movement.

LM18OP (Open Type): Features an open hollow structure with built-in oil grooves for easy lubrication and fast heat dissipation. It minimizes heat buildup during high-frequency continuous operation, making it ideal for long-stroke, high-speed and medium-heavy load linear motion working conditions.

Material Introduction

Bearing Steel Shell & Steel Balls: LM18 linear bearings adopt high-quality bearing steel with professional heat treatment. High surface hardness and outstanding wear resistance deliver stable load capacity and smooth sliding performance, extending service life under continuous operation.

Engineering Plastic Retainer & Rubber Seals: High-toughness engineering plastic retainer ensures flexible steel ball circulation with low noise and low resistance. LM18UU is fitted with durable rubber seals to provide stable dustproof and anti-fouling performance.

Product Features

Low friction coefficient for smooth linear motion. High positioning accuracy and excellent repeatability. Two structural types fit diverse speed and load demands. Reliable heat dissipation and dust resistance. Standard size for simple installation and replacement.

Application Scenarios

LM18 linear bearings are commonly applied in CNC machines, automatic sliding tables, mechanical arms, packaging machinery, 3D printing devices and industrial automation equipment. LM18UU suits conventional and dusty working environments; LM18OP is perfect for high-speed, long-stroke precision automation applications.

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