The SEW Eurodrive 13311743 is a backstop component designed for use within the W4943 series of drive systems. Specifically identified as an RSMX90-45-STI unit, this backstop is engineered to prevent reverse rotation in geared motor applications, ensuring controlled operation and preventing damage to downstream equipment.

Technical details

• Series: W4943
• Model Designation: RSMX90-45-STI
• Function: Backstop (prevents reverse rotation)
• Mounting Type: STI (likely indicates a specific shaft or flange configuration; verify against manufacturer datasheet for precise dimensions and mounting details)
• Torque Rating: The "90" in RSMX90 suggests a nominal torque capacity; precise value requires datasheet verification.
• Gear Ratio Compatibility: The "45" in RSMX90-45-STI may indicate compatibility with specific gear ratios or a particular stage within a gearbox; consult manufacturer documentation for confirmation.
• Internal Component: This unit functions as a critical internal component within a SEW Eurodrive geared motor assembly.

Applications & compatibility

This SEW Eurodrive backstop is integral to applications requiring positive prevention of reverse motion, commonly found in vertical shaft applications such as hoists, cranes, and certain types of conveyors. Its integration ensures that loads are held securely and prevents uncontrolled descent or back-driving of the motor and gearbox assembly.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the SEW Eurodrive 13311743 or contact our technical team for cross-reference assistance with compatible W4943 series components.