Atlas Copco Coupling Ring 1604032900
The Atlas Copco 1604032900 Coupling Ring is a mechanical spare part used in compatible Atlas Copco equipment, including applicable oil-injected screw compressor configurations.

As part of a coupling assembly, the ring is associated with the mechanical connection between rotating components. Correct fitment is important because coupling components operate within a mechanically driven system where alignment and secure assembly are essential.
| Specification | Value |
|---|---|
| Weight | 24.69 lb |
| Width | 15.91 in |
| Height | 4.49 in |
| Length | 15.79 in |
Role in the Coupling Assembly
A coupling system transfers mechanical power between connected rotating components while accommodating the requirements of the equipment’s drive arrangement.
The 1604032900 Coupling Ring forms part of this mechanical assembly. Its condition can therefore be relevant to the stability and reliability of the connected drive components.
Rather than treating the ring as an independent consumable, technicians should evaluate it together with the surrounding coupling components during maintenance.
Replacement Considerations
Before installing a 1604032900 Coupling Ring, inspect the associated coupling and mounting components.
Pay attention to:
Mechanical wear
Check for visible wear, deformation, cracking, or other damage.
Alignment
The connected components should be installed according to the applicable equipment specifications.
Fastening
Check the relevant fastening points and assembly condition during service.
Related components
If other coupling components show significant wear, replacing only the ring may not address the underlying issue.
Where It Matters
For an oil-injected screw compressor, the drive system is exposed to continuous mechanical operation. Coupling-related components may experience mechanical loads and movement throughout the operating cycle.
Inspection of the coupling assembly can be particularly useful when there are:
- Unusual vibration
- Abnormal mechanical noise
- Visible coupling wear
- Looseness in the drive assembly
- Evidence of misalignment
- Damage to related coupling components
The exact inspection criteria depend on the compressor design and service procedure.


