Product Description
The Omron R88M-K4K020F-OS2 AC servo motor is a high-performance 400V, 4,000W unit engineered for precision motion control, featuring a rated speed of 2,000 rpm (3,000 rpm peak), a rated torque of 19.1 Nm (57.3 Nm peak), and current ratings of 10.6 A RMS (45 A RMS max). Its 37.6 10 kgm rotor inertia, 20-bit incremental encoder, 784 N radial/343 N axial load capacity, and keyed/tapped straight shaft ensure accurate, efficient, and versatile integration into diverse applications.
Is Your Device Showing These Signs?
The Omron R88M-K4K020F-OS2 AC servo motor commonly exhibits issues such as resolver feedback errors, necessitating resolver replacement or recalibration. Overcurrent faults are frequently traced to shorted motor windings or IGBT failures within the servo drive. Mechanical problems include bearing wear, causing excessive noise and vibration, demanding bearing replacement. Encoder signal degradation results in positioning inaccuracies, requiring encoder repair or replacement. Communication errors between the motor and drive are addressed through cable inspection and connector cleaning to ensure proper signal transmission.
Technical specifications
The Omron R88M-K4K020F-OS2 is a high-performance 400V, 4,000W AC servo motor with a 2,000 rpm rated speed, 19.1 Nm rated torque, 10.6 A RMS rated current, a 20-bit incremental encoder, and a keyed/tapped straight shaft, designed for precise motion control in various applications.
Our Repair Process for the
R88M-K4K020F-OS2
Our repair process for the Omron R88M-K4K020F-OS2 AC servo motor begins with a comprehensive diagnostic assessment to pinpoint the fault. Resolver feedback errors necessitate immediate resolver replacement or recalibration. Overcurrent faults require a thorough inspection of motor windings and IGBTs within the servo drive, with replacement of any shorted components. Mechanical issues such as bearing wear demand bearing replacement to mitigate excessive noise and vibration. Encoder signal degradation is resolved through encoder repair or replacement to restore accurate positioning. Communication errors are addressed by inspecting cables and cleaning connectors to guarantee proper signal transmission between the motor and drive.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















