THK Co., Ltd. RSR7ZMUU40LM Linear Guide Block

The THK RSR7ZMUU40LM is a compact miniature linear bearing assembly that pairs an RSR7ZMUU LM guide block with a 40 mm precision rail for smooth, high-accuracy linear motion. It is designed for OEM replacement and preventive maintenance in semiconductor equipment, wafer handling systems, inspection tools, and other precision automation machinery, offering compact integration and repeatable positioning. The stainless steel RSR7ZM series delivers four-way equal-load capability with low-friction operation, uses UU double-end seals, and supports grease or oil lubrication, with an operating temperature range from -20°C to 80°C. Key specifications include THK part number RSR7ZMUU40LM, rail length 40 mm, rail width 7 mm, bolt-fixed rail mounting, and OEM reference Applied Materials 3760-01090.