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- 47588446001 95720272
- O-Ring
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- 50 × 10 × 30 mm
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Product Overview
The Ingersoll Rand 47588446001 95720272 O-Ring is a sealing component used in compatible Ingersoll Rand rotary screw compressor assemblies. It is identified as a standard O-ring and is listed in a drive-train assembly connecting the motor and airend on selected R-series compressors.
In this type of assembly, the O-ring seals the interface between adjoining components. Its job is to prevent leakage at the joint while the motor and airend remain correctly assembled. Although small compared with the surrounding equipment, the seal must maintain contact with the mating surfaces under the mechanical and thermal conditions encountered during compressor operation.
The 95720272 reference is associated with an O-ring specified as 9.250 inches inside diameter × 0.188 inches cross-section width in a documented compressor drive-train parts list. This identification distinguishes it from smaller O-rings used in valve housings, fittings, and other sealing locations throughout a compressor.
During motor or airend maintenance, the O-ring should be inspected whenever the relevant joint is separated. Flattening, cuts, surface damage, or loss of elasticity can compromise the seal after reassembly. Replacing the ring at this stage helps avoid reopening the assembly to address leakage caused by a damaged or incorrectly seated seal.
The correct application should be established from the compressor model and drive-train configuration. An O-ring with a similar appearance may have a different diameter or cross-section and may not seal the joint properly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Part Number | 47588446001 / 95720272 |
| Product Type | O-Ring |
| Component Classification | Standard O-Ring |
| Application | Compatible rotary screw compressor drive-train assemblies |
| Primary Function | Seals the interface between adjoining components |
| Catalog Size Description | 9.250 in inside diameter × 0.188 in cross-section width |
| Dimensions | 50 × 10 × 30 mm |
| Weight | 0.1 kg |
Product Features
- Drive-train sealing: Used at the specified interface between adjoining motor and airend components in applicable assemblies.
- Standard O-ring configuration: Forms a seal through controlled compression against the mating surfaces.
- Leakage prevention: Helps prevent oil or air leakage where the assembly requires a sealed joint.
- Service replacement: Can be renewed when the associated drive-train connection is dismantled.
- Distinct part identification: The 95720272 number separates this ring from other O-rings used in the compressor.
- Assembly maintenance support: Allows the sealing component to be replaced without automatically replacing the surrounding motor or airend components.
Working Principle
The 95720272 O-ring seals a joint by compressing between two mating surfaces. When the components are assembled, the ring deforms within its designated sealing space, creating contact pressure that restricts leakage through the interface.
In the documented drive-train arrangement, the O-ring is installed where the motor and airend are assembled together:
Drive Motor → O-Ring Sealing Interface → Airend
The ring does not transmit motor torque or control compressor pressure. Instead, it seals the connection between the adjoining components while the drive system operates.
During an airend replacement, for example, the motor-to-airend joint may need to be separated to access the mounting interface. The existing O-ring should be removed carefully, and the groove and mating surfaces should be inspected before installing a replacement. Scratches, trapped debris, or damage caused during disassembly can create a leakage path even when a new seal is fitted.
Correct installation also depends on using the appropriate O-ring specification. Excessive stretching, twisting, pinching, or an incompatible assembly lubricant can damage the seal. The ring should be seated evenly and the adjoining components reassembled according to the applicable service procedure.
Role in the Compressor Drive-Train Assembly
The 95720272 O-ring is part of the sealing arrangement at the motor-to-airend interface. Its condition affects the integrity of the joint when the associated components are assembled.
| System Element | Function |
|---|---|
| Drive Motor | Supplies rotational power to the compressor |
| Motor Mounting Interface | Establishes the mechanical connection between the motor and adjoining assembly |
| 95720272 O-Ring | Seals the designated interface between adjoining components |
| Airend | Compresses incoming air using the rotating screw elements |
| Mounting Fasteners | Secure the motor and airend in their specified positions |
| Drive-Train Assembly | Maintains the mechanical relationship between the motor and airend |
| Associated Sealing Surfaces | Provide the contact surfaces required for the O-ring to seal |
Industrial Applications
| Application | Practical Use |
|---|---|
| Rotary Screw Compressor Maintenance | Replacing the seal when the relevant drive-train joint is dismantled |
| Motor and Airend Assembly | Sealing the specified interface between adjoining components |
| Airend Replacement | Renewing the O-ring during separation and reassembly |
| Compressor Overhauls | Inspecting and replacing sealing components during major maintenance |
| Industrial Compressed-Air Systems | Maintaining the sealing integrity of compatible compressor drive assemblies |
| Mechanical Leakage Troubleshooting | Investigating leakage around the motor-to-airend interface |
| Compressor Rebuild Workshops | Fitting the correct O-ring during drive-train reassembly |
| Preventive Maintenance | Checking seal condition whenever the relevant joint is opened |
| Spare Parts Management | Identifying the correct O-ring for the specified drive-train configuration |
Installation and Maintenance
- Verify the part number: Confirm 47588446001 and 95720272 against the compressor’s parts documentation and the installed drive-train assembly.
- Identify the equipment configuration: Check the compressor model and serial number before selecting the replacement O-ring.
- Isolate the compressor: Follow the approved shutdown and lockout procedure before accessing the motor and airend joint.
- Prepare for disassembly: Follow the equipment-specific procedure for separating the adjoining components without damaging the sealing surfaces.
- Remove the old O-ring: Avoid using sharp tools in a way that could scratch the groove or mating surfaces.
- Inspect the removed seal: Check for flattening, cuts, hardening, cracking, swelling, or other signs of deterioration.
- Examine the sealing interface: Inspect the groove and adjoining surfaces for debris, scratches, corrosion, or mechanical damage.
- Clean the assembly surfaces: Remove contamination using a method compatible with the materials and the compressor’s service requirements.
- Confirm replacement suitability: Verify the specified O-ring dimensions and material for the installed assembly rather than relying on appearance alone.
- Install the O-ring evenly: Seat the ring in its designated position without twisting, stretching excessively, or pinching it between components.
- Reassemble and inspect: Follow the specified assembly sequence and fastening requirements, then check the joint for leakage during the approved operational test.
- Record the maintenance work: Document the part number, compressor identification, condition of the removed seal, and results of the post-maintenance inspection.
Compatible System Components
| Component | Function |
|---|---|
| Ingersoll Rand 95720272 O-Ring | Seals the designated motor-to-airend interface |
| Drive Motor | Provides the rotational input for the compressor |
| Airend Assembly | Performs the air compression process |
| Motor Mounting Interface | Aligns and connects the adjoining components |
| Mounting Fasteners | Secure the assembled components |
| Sealing Groove | Locates the O-ring and establishes its compression |
| Mating Surfaces | Form the sealing interface around the installed ring |
| Drive-Train Assembly | Maintains the mechanical connection between the motor and airend |
Recommended Related Models
| Model / Part Number | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 95720272 | Standard O-Ring | Sealing the specified drive-train interface |
| Ingersoll Rand 95070272 | Standard O-Ring | Separate O-ring reference for compatible compressor assemblies |
| Ingersoll Rand 93481331 | Shaft Sleeve | Mechanical interface within a compatible motor or drive assembly |
| Ingersoll Rand 93481349 | Drive Key | Transfers torque between compatible keyed components |
| Ingersoll Rand 93481356 | Retaining Ring | Retains components in the associated mechanical assembly |
| Ingersoll Rand 93481364 | Gasket | Seals the designated mating interface |
| Ingersoll Rand 88142450 | Seal Housing | Supports the applicable shaft-sealing arrangement |
| Ingersoll Rand 88142427 | Seal Housing | Related sealing component for parts identification |
| Ingersoll Rand 95023107 | O-Ring | Separate sealing component used in applicable assemblies |
| Ingersoll Rand 95070611 | O-Ring | Related O-ring reference for compatibility checks |
| Ingersoll Rand 95934154 | Hex-Head Cap Screw | Fastening component in compatible mechanical assemblies |
| Ingersoll Rand 96739966 | Socket-Head Screw | Secures components in the documented drive-train arrangement |
| Ingersoll Rand R37ie | Rotary Screw Air Compressor | Related compressor family; verify the installed drive-train configuration |
| Ingersoll Rand R45i | Rotary Screw Air Compressor | Related R-series equipment for parts comparison |
| Ingersoll Rand R37n | Rotary Screw Air Compressor | Related compressor configuration; confirm seal compatibility |
| Ingersoll Rand R45n | Rotary Screw Air Compressor | Related compressor model for maintenance-parts identification |
Key Advantages
- Seals the specified joint between adjoining drive-train components.
- Supports leakage prevention during normal compressor operation.
- Allows renewal of the sealing element during motor or airend maintenance.
- Provides a dedicated part number for replacement identification.
- Helps maintain the integrity of the assembled motor-to-airend interface.
Technical FAQs
Where is the 95720272 O-ring installed?
A documented Ingersoll Rand drive-train parts list identifies it at the interface where the motor and airend are assembled together. Confirm the exact installation position against the parts drawing for the compressor being serviced.
Why should the O-ring be replaced when the motor and airend are separated?
The existing ring may have taken a compression set or sustained damage during operation or disassembly. Installing a suitable replacement reduces the risk of leakage after the joint is reassembled.
What should be inspected if leakage continues after replacing the O-ring?
Check whether the ring is correctly seated and whether its specification matches the required application. Also inspect the mating surfaces for scratches, contamination, damage, or alignment problems that could prevent proper sealing.
Can the 95720272 be substituted with the 95070272 O-ring?
The two part numbers identify separate O-ring components. They should not be treated as interchangeable without confirming the required dimensions, material, and installation location for the specific compressor assembly.