ABB 3HAC024316-008 RV 550E-242.73 Axis-1 Gearbox | Replacement, Equivalent & Selection Guide
The ABB 3HAC024316-008 (also referenced as 3HAC024316-006) is the OEM axis-1 reduction gearbox unit for the ABB IRB 6620 and ABB IRB 6640 industrial robot series. It integrates a Nabtesco RV 550E-242.73 cycloidal reducer and is a critical motion-control component in heavy-payload 6-axis robot arms. This page provides full technical specifications, compatible replacement options, application guidance, and a structured selection guide for procurement engineers and maintenance teams.
Technical Specifications
| Parameter | Value |
|---|---|
| ABB Part Number | 3HAC024316-008 / 3HAC024316-006 |
| Reducer Model | Nabtesco RV 550E-242.73 |
| Robot Compatibility | ABB IRB 6620, ABB IRB 6640 |
| Axis Position | Axis 1 (Base Rotation) |
| Reduction Ratio | 242.73 : 1 |
| Reducer Series | RV-E (Cycloidal) |
| Rated Torque | ~5390 N·m (refer to Nabtesco RV 550E datasheet) |
| Weight (approx.) | ~500 g (gearbox assembly; confirm with OEM BOM) |
| Origin | OEM — ABB Robotics |
Compatible Replacement & Equivalent Models
The following parts are confirmed or commonly referenced as replacements or equivalents for the ABB 3HAC024316-008. Always verify dimensional fit and ratio before installation:
- ABB 3HAC024316-006 — Earlier revision of the same assembly; functionally equivalent in most IRB 6620 / IRB 6640 configurations.
- Nabtesco RV 550E-242.73 — OEM reducer core; direct drop-in when replacing the cycloidal unit only.
- Nabtesco RV 550E-242.72 — Adjacent ratio variant; confirm axis-1 torque and speed requirements before substitution.
- Third-party RV 550E-242.73 equivalents — Available from qualified industrial suppliers; must meet ISO 9283 accuracy class and OEM torque ratings.
Note: Konmask.com supplies both OEM and verified-equivalent units. Contact us for cross-reference confirmation.
Why Choose the Original Model
- Precision-matched ratio — 242.73:1 ratio is factory-calibrated for IRB 6620 / IRB 6640 axis-1 motion profiles.
- OEM dimensional compliance — Bolt pattern, shaft interface, and housing geometry are validated against ABB robot BOM.
- Reduced commissioning risk — No re-parameterization of robot controller required when using OEM part number.
- Warranty alignment — Maintains ABB service contract eligibility where applicable.
Typical Applications
- Automotive body-in-white welding and assembly lines using ABB IRB 6620 / IRB 6640
- Heavy-payload material handling and palletizing cells
- Foundry and press-tending robot installations
- Preventive maintenance overhaul of ABB 6-axis robot fleets
- Spare-parts stocking for robot system integrators and OEM service centers
System Compatibility
| Robot Model | Payload | Reach | Axis-1 Gearbox |
|---|---|---|---|
| ABB IRB 6620 | 150 kg | 2.2 m | 3HAC024316-008 ✓ |
| ABB IRB 6640 | 130–235 kg | 2.55–3.2 m | 3HAC024316-008 ✓ |
Always cross-check with your robot’s serial number and ABB spare parts catalog (IRC5 / OmniCore controller generation) before ordering.
Selection Guide
Use the following decision flow to select the correct gearbox for your application:
- Confirm robot model & serial number — IRB 6620 or IRB 6640; note the manufacturing year and controller type (IRC5 / OmniCore).
- Identify the failed axis — This part covers Axis 1 only. For Axes 2–6, different part numbers apply.
- Verify reduction ratio — Must be 242.73:1. Do not substitute with 241.28:1 or other ratios without controller re-parameterization.
- Choose OEM vs. equivalent — OEM (3HAC024316-008) for warranty-sensitive or safety-critical lines; verified equivalent for cost-optimized MRO programs.
- Confirm lead time & quantity — Contact Konmask.com for stock availability, MOQ, and expedited shipping options.
Quality Assurance & Sourcing
- All units sourced through authorized distribution channels or verified industrial surplus with full traceability documentation.
- Pre-shipment inspection available: dimensional check, ratio verification, and backlash measurement on request.
- Packaging: anti-static foam, moisture-barrier bag, and rigid outer carton for international freight.
- Certificates of conformance (CoC) and country-of-origin documentation provided upon request.
How to Order
- Add to cart directly on this page, or
- Email support@konmask.com with your robot serial number and required quantity for a tailored quote.
- For bulk or project orders, request a formal RFQ — typical response within 24 business hours.
- Payment: T/T, PayPal, and major credit cards accepted. Export documentation (commercial invoice, packing list, CO) included for international shipments.
Replacement & Compatibility FAQ
Q: Is 3HAC024316-006 the same as 3HAC024316-008?
A: Yes — these are revision suffixes of the same base assembly. In most IRB 6620 / IRB 6640 applications they are interchangeable, but confirm with ABB’s spare parts bulletin for your specific robot serial range.
Q: Can I use a Nabtesco RV 550E-242.73 to replace the full ABB gearbox assembly?
A: The Nabtesco RV 550E-242.73 is the reducer core within the ABB assembly. A full assembly replacement (3HAC024316-008) includes the housing and interface components. Reducer-only replacement is possible for experienced service teams with the correct tooling.
Q: Will this gearbox work on IRB 6650 or IRB 7600?
A: No — the IRB 6650 and IRB 7600 use different axis-1 gearbox assemblies with different ratios and mounting interfaces. Contact us for the correct part numbers for those models.
Q: What is the typical lead time?
A: In-stock units ship within 1–3 business days. Out-of-stock items typically have a 2–6 week lead time depending on sourcing. Contact us for real-time availability.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
