RKG0034 by Bosch Rexroth Indramat

The RKG0034 cable is an encoder feedback lead manufactured by Bosch Rexroth Indramat for the RKG Encoder Cables series. The assembly carries differential position signals between a motor-mounted sensor and the associated drive controller, allowing industrial automation equipment to maintain closed-loop speed and position control. This type of lead is used where the drive depends on clean feedback data to correct speed deviations and maintain accurate axis positioning under changing loads. Because it is supplied with overmolded plugs and a factory-set length, it can be installed without field crimping or pin assignment, which reduces wiring time and connection errors.

The cable is rated for 5 million flex cycles when routed in energy chains. To limit conductor fatigue, it must follow a dynamic bending radius of 7.5 x D, while fixed runs may use a tighter 4 x D curve. These bend limits are based on the outer diameter so the copper pairs are not overstressed during motion. The assembly uses the Basic design level and a PUR outer jacket that resists oil and abrasion. The jacket also helps protect the cable in repetitive motion paths where contact with guides or carrier elements can occur.

Signal interfacing uses factory-installed connectors, with an INS0753 plug at the motor end and an INS0758 connector at the controller end. Because the harness is supplied as a ready-made unit, no on-site crimping or impedance-sensitive soldering is required. The cable is classified as an encoder cable, so its twisted pairs and overall shield are intended for low-voltage feedback signals rather than motor power. The shielding structure helps preserve signal quality in electrically active machine cabinets where motor leads and switching devices are nearby. This supports stable transmission of position data between the encoder and the control system during repeated machine operation.