RKG0065 by Bosch Rexroth Indramat

The RKG0065 is an encoder cable manufactured by Bosch Rexroth Indramat for the RKG Encoder Cables series. It serves as the feedback link between an encoder mounted on a servo axis and a Rexroth drive controller, transmitting differential position signals in industrial automation cells. Its role is to carry encoder feedback from a moving axis to the drive so that position data remains stable during continuous machine motion. Because the assembly uses factory-terminated connectors, it can be routed directly through cable carriers and cabinets without on-site crimping. This supports consistent signal quality and reduces wiring variation during installation.

During repetitive motion, the cable withstands 5,000,000 flex cycles, a rating suited to long-life drag-chain duty in pick-and-place or gantry axes. Mechanical stress is controlled by maintaining a dynamic bend radius of 7.5 × D, while stationary routing can follow a tighter 5 × D radius without damaging the conductors or shielding. That combination supports repeated flexing in cable carriers where the harness changes direction many times during normal service. The assembly is classified as a Ready-Made product, so it arrives as a complete cable assembly. It follows the Basic construction level for standard operating conditions.

Signal integrity is maintained through the mating hardware: the motor-side plug uses RGS1781 coding, while the control cabinet end terminates in an RGS0001 female connector. This pairing helps prevent cross-connection and locks to IP-rated shells suited to the stated bending profile. Classified as an Encoder Cable, the conductor layout supports differential pairs for sine-cosine or digital feedback formats and does not require power cores. The absence of power cores keeps the assembly focused on feedback transmission rather than motor supply duties. The shielding scheme and pin assignments match the rest of the series, allowing the cable to connect the feedback device to the drive without additional adaptation hardware.