Product Details:

REXROTH 0608830162 is a standard SZ4 square drive output adapter for Bosch Rexroth modular servo nutrunner spindle, used to connect the gearbox output end with different socket tools. It adopts heavy-duty alloy steel structure with high torsional strength, designed for repeated bolt fastening cycles on automotive assembly lines. This legacy output component is discontinued, and most available units are spare replacements for old tightening stations.

This square drive transfers torque from the spindle gearbox to the socket and fastens bolts according to the torque and angle commands issued by the tightening controller. It is a purely mechanical output component without built-in sensor or feedback function, and works with torque transducer and encoder/resolver feedback to complete closed-loop fastening control. Standard SZ4 interface ensures interchangeability among matched Rexroth spindle modules.

This variant is mechanical output adapter without integrated holding brake. It is suitable for rotary multi-station fastening fixtures, powertrain assembly stations and solid material bolt joining lines. The quick-change locking structure allows operators to swap sockets rapidly for mixed-model production changeover. The surface is treated for wear resistance, resisting friction and impact during continuous cyclic fastening operation. The sealing structure reaches IP54 protection grade to resist workshop dust and minor coolant splash. Optimized square tooth profile reduces impact and backlash, maintaining stable torque transfer for safety-critical bolt joints.

It cooperates with Rexroth tightening spindle, transducer and controller, all tightening parameters are configured via Rexroth tightening software. Compact size fits inside narrow rotary indexers and limited automation installation space. Every finished adapter passes factory validation including torque loading test, wear inspection and dimensional verification to guarantee stable performance in multi-shift automated fastening production lines.

It is widely deployed on automotive engine and transmission assembly stations, new energy battery module fastening lines, heavy mechanical component bolt joining equipment and multi-spindle tightening automation cells. Typical application scenarios include spindle output driving adapters, mixed-model fastening tool interfaces, rotary tightening unit connection modules and torque test bench output joints. Automation integrators select this Rexroth SZ4 square drive adapter for its high wear resistance, standard interchangeable interface and seamless matching with Rexroth nutrunner spindle system.