Introduction
The Ingersoll Rand 47550997001 39218193 Motor Grease SHC 220 is a specialized lubrication reference associated with scheduled maintenance of compatible M90–160 VSD compressor configurations. The 47550997001 reference identifies the 8,000-hour preventive maintenance package, while 39218193 is listed as Motor Grease SHC220 within the applicable maintenance configuration.
Motor-bearing lubrication is a small but critical part of compressor reliability. The electric motor operates under continuous mechanical and thermal loads, and its bearings depend on the correct lubricant to minimize friction, control wear, and maintain stable operation.
39218193 corresponds to Mobilith SHC 220. Ingersoll Rand compressor documentation identifies Mobilith SHC 220 by this part number for applicable motor lubrication, while Mobilith SHC 220 is described as a synthetic lubricant formulated with a lithium-complex thickener.
The choice of grease should never be based solely on viscosity or temperature range. Bearing design, motor manufacturer requirements, existing grease chemistry, relubrication method, and operating conditions all influence lubricant compatibility. Ingersoll Rand documentation therefore directs users to follow the grease specification shown on the motor's dedicated grease information nameplate.
This is particularly important during major preventive maintenance. A compressor can receive new filters, separator elements, valves, and other service parts while still experiencing reliability problems if motor-bearing lubrication is neglected or performed with an incompatible grease.
The 47550997001 maintenance listing provides a useful service reference because it identifies 39218193 alongside other components used in the M90–160 VSD maintenance configuration. This allows maintenance planners to treat motor lubrication as part of a coordinated service event rather than as an isolated consumable requirement.
Mobilith SHC 220 is designed for demanding industrial lubrication service, with a synthetic base oil and lithium-complex thickener. Supplier information describes it as suitable for rolling and sliding bearings under demanding conditions and highlights thermal stability, wear protection, and corrosion protection.
Correct application quantity is equally important. Ingersoll Rand documentation warns that over-greasing can contribute to motor and bearing failure. Lubricant should therefore be applied according to the specific motor's maintenance instructions rather than by assuming that more grease provides greater protection.
Alternative greases should also be treated carefully. Ingersoll Rand documentation identifies other grease references for certain situations and motor configurations, but these should not automatically be considered interchangeable with 39218193. The motor nameplate and applicable service manual remain the controlling references.
For purchasing teams, the exact 39218193 part number provides useful traceability and reduces the chance of confusing motor grease with compressor lubricant, gearbox lubricant, or other maintenance consumables.
When correctly selected and applied, 39218193 provides a dependable motor-bearing lubrication solution that supports the broader reliability objectives of the 8,000-hour preventive maintenance program.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Kit Reference | 47550997001 |
| Maintenance Program | 8,000-Hour Preventive Maintenance |
| Configuration | M90–160 VSD, air-cooled |
| Component Part Number | 39218193 |
| Product Type | Motor Grease |
| Grease Designation | Mobilith SHC 220 |
| Base Oil | Synthetic hydrocarbon / PAO |
| Thickener | Lithium complex |
| NLGI Grade | 2 |
| Primary Application | Electric motor bearing lubrication |
| Lubrication Function | Bearing friction and wear control |
| Temperature Capability | Verify current Mobil product documentation and motor requirements |
| Application Quantity | Motor-specific; follow motor nameplate/service documentation |
| Relubrication Interval | Motor-specific |
| Mixing With Other Greases | Do not assume compatibility |
| Dimensions | Packaging-specific; verify applicable product documentation |
| Weight | Packaging-specific; verify supplied product |
| Package Contents | Verify current 47550997001 bill of materials |
| Storage Requirements | Follow current lubricant manufacturer's recommendations |
| Compatibility | Confirm motor nameplate and compressor configuration before use |
The product identity and maintenance association are supported by Ingersoll Rand service documentation and the published M90–160 VSD maintenance listing. Packaging dimensions, supplied weight, and exact grease quantity were not sufficiently verified and therefore are intentionally not estimated.
Recommended Companion Models
| Model | Product Name |
| 24172215 | Air Filter Element |
| 39911631 | Coolant Filter Element |
| 54509427 | Air/Oil Separator Element |
| 99289894 | Minimum Pressure Valve Service Kit |
These references address different service functions within the broader M90–160 maintenance configuration. They are complementary maintenance references and are not substitutes for 39218193.
Frequently Selected Alternatives
| Model | Product Name |
| 39204292 | Chevron Black Pearl #2 Grease |
| 39161641 | Chevron SRI 2 Grease |
| 92844729 | Esso Unirex N3 Motor Grease |
| 38034914 | Mobil Polyrex EM Grease |
