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Copy| Product Name | ABB TS245RHS-125 3HAC028837-004 IRB 4600 Axis-1 Reduction Gear |
| Item NO. | 2930100 |
| Weight | 0.1 kg = 0.2205 lb = 3.5274 oz |
| Category | ABB |
| Brand | ABB |
| Creation Time | 2026-11-05 |
IRB 4600 Axis-1 Reduction Gear documented for ABB IRB 4600 robot drive train.
ABB TS245RHS-125 3HAC028837-004 is an axis-1 reduction gear documented for specified IRB 4600 manipulator executions. Positioned between the axis-1 motor pinion and the robot base structure, the TS245RHS-125 changes the motor's high-speed input into the lower-speed, higher-torque rotation required to turn the complete upper manipulator.
Inside the axis-1 drive path, ABB TS245RHS-125 3HAC028837-004 receives torque through the motor-side pinion interface and transfers it through the reduction stage to the rotating structure. The gearbox is therefore matched to the installed motor, mounting faces and robot execution; its i=125 ratio is a drive-train property rather than a field-programmable value.
For replacement work, ABB TS245RHS-125 3HAC028837-004 is handled only after the manipulator has been secured against gravity and unintended rotation. The mating faces, locating features and supplied O-ring are checked before tightening, and the restored axis is then inspected for free movement, leakage and abnormal sound before calibration and controlled-speed verification.
| Technical item | Specification |
|---|---|
| Brand | ABB |
| Model | TS245RHS-125 3HAC028837-004 |
| Product name | IRB 4600 axis-1 reduction gear |
| Country | Switzerland / Sweden |
| Robot family | IRB 4600 |
| Installed position | Axis 1 drive train |
| Gear execution | TS245RHS-125 |
| Reduction ratio | i = 125 |
| Input interface | Axis-1 motor pinion |
| Output interface | Rotating base / manipulator structure |
| Service seal | Replacement gearbox supplied with O-ring |
| Selection basis | Robot execution and complete order number |
| Commissioning boundary | Mechanical check, calibration and controlled-speed test |
ABB TS245RHS-125 3HAC028837-004 forms the mechanical conversion stage between the axis-1 servo motor and the complete rotating manipulator. Its three functions operate as one drive path: motor speed is reduced, available turning torque is increased and the resulting output remains tied to the controller's measured axis position.
The motor pinion drives the TS245RHS-125 input stage, and the internal train converts that high-speed rotation to the slower output required at the robot base. This prevents motor speed from being passed directly to the heavy upper structure and establishes the fixed axis-1 motion relationship.
As speed falls through the reduction train, usable turning torque is delivered to the rotating base structure. That output carries the manipulator about axis 1 while the servo drive regulates acceleration and stopping; the gearbox therefore serves the mechanical load rather than acting as an independent actuator.
Motor feedback reports drive-side position while the gearbox carries the corresponding motion to the axis structure. Correct pinion engagement, secure mounting and controlled backlash keep those two sides aligned; lost seating or abnormal clearance can make commanded motor movement disagree with actual robot rotation.
Installation is treated as a controlled drive-train operation, not a simple part exchange. The manipulator is restrained before the gear path is opened, both mechanical interfaces are prepared without contamination, and low-speed validation confirms that the restored assembly moves and seals correctly.
Move the robot to the documented service position, isolate and verify drive power, then mechanically restrain axis 1 against gravity or unintended rotation. Support remains in place while motor and gearbox fasteners are released because the holding brake is not used as the sole service lock.
Clean the motor-side and structure-side mating faces, inspect locating features and pinion condition, and seat the specified O-ring without twisting it. Keep dirt, impact and side load away from the reduction input so alignment is established by the locating geometry rather than by tightening force.
Tighten the assembly in the prescribed sequence, restore lubrication and covers, then check free movement and leakage before enabling the drive. Confirm calibration and run axis 1 first at controlled speed while listening for abnormal sound and watching for following error or unexpected backlash.
Match ABB TS245RHS-125 3HAC028837-004 to the installed nameplate, IRB 4600 execution and axis-1 spare-parts record; the TS245RHS-125 gear designation and i=125 ratio must agree.
Before removing ABB TS245RHS-125 3HAC028837-004, secure the manipulator against gravity and unintended axis-1 rotation, then isolate the drive system.
The documented replacement supply for ABB TS245RHS-125 3HAC028837-004 includes the gearbox O-ring; confirm that it is undamaged and correctly seated.
ABB TS245RHS-125 3HAC028837-004 receives motor torque through that pinion interface, so wear or contamination there can affect the restored mechanical path.
After installing ABB TS245RHS-125 3HAC028837-004, check free movement, sealing, abnormal sound, axis calibration and controlled-speed travel.
No. The i=125 value of ABB TS245RHS-125 3HAC028837-004 is the mechanical reduction ratio; controller settings must correspond to the installed drive hardware.
Moore Automation can retain older ABB robot-part identifiers together with the full suffix, requested quantity and destination. Photographs and available technical files stay connected to the same enquiry without implying authorization, guaranteed stock or a fixed delivery date.
Moore Automation Sales Team
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