RKG4204 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKG4204 is part of the RKG Encoder Cables series and is constructed using REG0748 bulk cable with a jacket made of PUR. This encoder cable features RGS1001/C01 and RGS1002/C01 connectors, each with 10 pins, and supports a bending cycle of 5 million with a dynamic bending radius of 7.5 times the cable diameter.
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Product Description:
The RKG4204 encoder cable is supplied by Bosch Rexroth Indramat as part of the RKG Encoder Cables series. It links motor-mounted encoder heads to drive controllers, transferring differential position signals and low-voltage power so the control loop can verify shaft position in real time. Shielding and twisted conductor pairs minimize electromagnetic interference, enabling reliable feedback on moving axes in material-handling modules, pick-and-place gantries, and other automated equipment.
On the motor side, the cable terminates in an RGS1001/C01 plug, while the control-cabinet end uses an RGS1002/C01 socket. Each connector contains 10 gold-plated contacts for incremental channels, reference tracks, and auxiliary power. The internal conductor arrangement follows a 4P0.25 + 2x0.5 layout, with four twisted signal pairs and two larger power leads enclosed within the same jacket. The cable has an outside diameter of 8.5 mm, allowing it to fit standard drag-chain separators and cable glands without requiring excessive routing space. Moving installations require a minimum dynamic bending radius of 7.5 × D to limit repeated strain on the conductors. A durable PUR sheath resists oils, weld spatter, and continuous exposure to machine-tool coolants while remaining flexible during high-cycle travel.
The underlying bulk cable code is REG0748, which identifies the cable material and conductor arrangement used in the assembly. Its mechanical service life is rated for 5 million flexing cycles in energy chains, making it suitable for routes that move repeatedly during normal machine operation. Fixed installations must maintain a minimum static bending radius of 5 × D to prevent sharp bends from damaging the internal conductors or shielding. The halogen-free jacket reduces the release of corrosive gases during a fire, helping limit damage to nearby control electronics in enclosed production cells. The two larger supply conductors provide current for encoder power, reference-voltage circuits, or compatible low-voltage auxiliary functions, while the twisted pairs carry noise-sensitive feedback signals.
