Rexnord SRK200543A Carr Sub Assembly 5.74 Inch

Rexnord SRK200543A Carrier Sub Assembly for the SRK planetary gear reducer line represents the carrier component sized for a 5.74-inch interface that distributes load across the planet gears while they orbit the sun gear inside Rexnord's main SRK housing, contributing to the compact, high-torque performance characteristic of the SRK stage. This sub-assembly serves as the central support structure of the planet gear set, providing mounting surfaces and precise alignment to sustain gear engagement under load and to maintain proper clearance between planet gears, sun gear, and ring gear throughout operation. The SRK200543A designation identifies a specific carrier size within the SRK family and is intended as a direct replacement part for compatible SRK reducers, helping to restore original geometry, reaction torque paths, and overall drivetrain efficiency when installed with the matching sun gear, planet gears, ring gear, and maincase components. When selecting this carrier, customers should confirm the reducer model and configuration, verify bore diameters and mounting interface patterns, and ensure the part corresponds to the original SRK reduction ratio and gear counts to avoid misalignment and premature wear in industrial applications.