RKG4202 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKG4202 is part of the RKG Encoder Cables series and features a cable construction of 4x(2x0.25 mm²) plus 2x0.5 mm², with a diameter of 8.8 mm. It uses a PUR jacket material and is designed for drag chain use, supporting up to 5 million bending cycles. The cable includes an RGS1001 M23 10-pin encoder connector and wire end ferrules for the controller end.
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Product Description:
The RKG4202 is an encoder feedback cable produced by Bosch Rexroth Indramat for the RKG Encoder Cables series. The assembly provides the physical link between rotating or linear encoders mounted on servo axes and the associated drive controller, carrying differential position and reference signals while also supplying auxiliary power. Its design allows routing through cable chains and moving machine members, helping incremental or absolute encoder data remain intact during continuous industrial operation.
The cable survives up to 5 million flex cycles under chain-guided travel, where the conductors endure repeated tension and movement. During dynamic movement, the minimum allowable bend radius is 7.5 × D, so the bend radius for this model must not fall below approximately 66 mm. The cable has an outside diameter of 8.8 mm, which allows it to fit compatible gland plates and cable-chain compartments. A rugged PUR outer jacket resists coolants and abrasion. The cable is suitable for drag-chain use and does not require additional protective conduit for high-speed reciprocating motion.
The internal conductor layout is 4 × (2 × 0.25 mm²) + 2 × 0.5 mm², providing four individually shielded twisted pairs for incremental channels and two heavier conductors for supply lines. These cores originate from the INK0448 bulk cable type, providing consistent electrical impedance throughout the cable length. At the encoder housing, the cable terminates in a sealed RGS1001 M23 10-pin plug, while the controller side has wire-end ferrules for direct insertion into spring or screw terminals. Stationary routing permits a minimum bend radius of 5 × D, allowing tighter cabinet bends without overstressing the dielectric insulation or shield layers. The combination of shielded signal pairs and dedicated supply conductors helps limit electrical interference between encoder channels and auxiliary power connections during machine operation.
