The pulleys used in MSA Series Actuators feature precision-machined one-piece steel construction, nickel plated for durability and corrosion protection, and an integral shaft for superior strength. The timing belts are made of specialty steel cords molded into highly-flexible polyurethane material to protect against damage and deformation. All MSA Series Actuator models have been extensively tested over tens of millions of cycles with no failures and all have a repeatability of +/-25 µm or better, according to the company.
Misumi USA, Inc: Belt drive actuators
Designed to optimize performance and reliability at a modest cost, MSA Series Belt Drive Actuators from Misumi Corporation can be configured to carry loads up to 227 kg (500 lbs.), with travel speeds ranging from 1200 to 10,000 mm/sec, and standard lengths up to 6.25 meters, with custom lengths upon request.