LM20UU Linear Bearings

LM20UU Linear Bearings
Part Number LM20UU Weight(Kg) 0.096
d 20 Dynamic Load Co(N) 940
D1 32 Static Load Cor(N) 1500
B 42

LM20 Linear Bearing | LM20UU / LM20OP Types Available

The LM20 linear bearing is a high-precision linear motion component designed for low-friction, stable linear sliding. It features excellent load capacity, precise positioning and reliable high-speed performance, ideal for medium to heavy-duty precision automation machinery. Offered in LM20UU closed type and LM20OP open type, this bearing provides durable and cost-effective linear motion solutions for industrial mechanical and automation systems.

LM20UU vs LM20OP | Model Differences

LM20UU (Closed Type): Equipped with double-sided rubber sealed fully dust-proof structure. It effectively isolates dust, debris and contaminants, retaining internal grease to support long-term maintenance-free operation. It is widely suitable for standard and dusty industrial working environments with conventional linear stroke operation.

LM20OP (Open Type): Adopts an open hollow structure with built-in oil grooves for convenient lubrication and efficient heat dissipation. It reduces thermal accumulation during long-term high-frequency operation, perfectly adapting to long-stroke, high-speed and medium-heavy load linear motion scenarios.

Material Introduction

Bearing Steel Shell & Steel Balls: LM20 linear bearings adopt premium bearing steel through professional heat treatment. High surface hardness and superior wear resistance ensure stable load-bearing performance and ultra-smooth sliding, greatly extending service life under continuous operating conditions.

Engineering Plastic Retainer & Rubber Seals: High-toughness engineering plastic retainer enables flexible steel ball circulation with low noise and low running resistance. LM20UU is equipped with wear-resistant rubber seals for stable dustproof and anti-fouling protection.

Product Features

Ultra-low friction for smooth linear motion. High positioning accuracy and excellent motion repeatability. Dual structural designs meet different speed and load requirements. Reliable heat dissipation and dust resistance. Standard size for easy installation and replacement.

Application Scenarios

LM20 linear bearings are widely used in CNC processing equipment, automatic sliding platforms, robotic arms, packaging machinery, 3D printing equipment and industrial automation systems. LM20UU fits conventional and dusty working environments; LM20OP is ideal for high-speed, long-stroke and high-precision automation equipment.

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