Introduction
The Ingersoll Rand 47588564001 / 38034914 Motor Bearing Grease listing combines an air-cooled preventive-maintenance reference with a dedicated motor-bearing lubricant.
47588564001 is cataloged as an 8,000-hour preventive maintenance kit for air-cooled compressors. It belongs to Ingersoll Rand's broader scheduled-maintenance family, alongside separate 2,000-hour, 4,000-hour, water-cooled 8,000-hour, gearbox, and hose-maintenance references.
The independently documented 38034914 is identified as motor-bearing grease and is specifically associated with Mobil Polyrex EM. Ingersoll Rand parts listings describe it as “GREASE, MOTOR BRG. MOBIL POLLYREX EM” and give a 13.7 oz tube configuration.
Electric-motor bearings are critical rotating components in industrial compressor packages. They support the motor shaft while allowing continuous rotation under load. Proper lubrication reduces friction between the bearing's rolling or sliding surfaces and helps control wear and operating temperature.
Grease selection is therefore not simply a matter of choosing a general-purpose lubricant. Bearing grease must be compatible with the bearing design, operating speed, temperature, load, and existing lubricant. Mixing incompatible greases can adversely affect consistency, lubrication performance, or bearing life.
38034914 has been listed in Ingersoll Rand recommended-parts documentation for several compressor families. For example, available UP-series parts manuals list 38034914 under service items together with compressor coolant, air-filter elements, separator cartridges, and other maintenance components.
The 38034914 reference is also associated with a 13.7 oz tube of Mobil Polyrex EM motor-bearing grease. Trade documentation records the same part number with the description “GREASE, MOTOR BEARING MOBIL POLYREX EM 13.7 OZ TUBE.”
This lubricant should be distinguished from Ingersoll Rand's other grease references. For example, 39218193 is separately identified as another Ingersoll Rand motor grease reference, while 92844729 is another grease product appearing in Ingersoll Rand parts listings. The correct lubricant should therefore be selected by the applicable compressor and motor documentation rather than by grease appearance alone.
During motor-bearing service, the technician should follow the specified grease quantity and application method. Both under-greasing and over-greasing can create problems: insufficient lubricant may increase wear, while excessive grease can increase churning, heat generation, and bearing temperature.
The lubrication procedure should also account for the existing grease. If the motor manufacturer specifies a particular grease and compatibility procedure, those instructions should take priority. Where grease substitution is being considered, compatibility should be established before the new lubricant is introduced.
Available documentation does not reliably establish a complete technical datasheet for 38034914 under the Ingersoll Rand part number, including exact NLGI grade, dropping point, base-oil viscosity, or relubrication interval. These values should therefore not be fabricated or assumed solely from the Mobil product family name.
The supplied pair is treated as one product listing as requested. Public records independently establish 47588564001 as the 8,000-hour air-cooled preventive-maintenance kit and 38034914 as motor-bearing grease. The available documentation does not independently establish that 38034914 is the complete bill of materials contained in 47588564001.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47588564001 |
| Associated Part Number | 38034914 |
| Product Type | 8,000-Hour Preventive Maintenance Kit / Motor-Bearing Grease |
| Maintenance Kit Type | 8,000-Hour Preventive Maintenance Kit, Air-Cooled |
| Lubricant Type | Motor-Bearing Grease |
| Product Identification | Mobil Polyrex EM |
| Package Format | Tube |
| Documented Package Size | 13.7 oz |
| Approximate Volume | 0.405 L |
| Primary Application | Electric-Motor Bearing Lubrication |
| Compressor Application | Compatible Ingersoll Rand compressor motor assemblies |
| Base Oil | Not independently verified for the Ingersoll Rand-labeled product |
| Thickener Type | Not reliably verified from Ingersoll Rand documentation |
| NLGI Grade | Not reliably verified under part number 38034914 |
| Dropping Point | Not reliably verified under part number 38034914 |
| Operating Temperature Range | Not reliably verified under part number 38034914 |
| Grease Compatibility | Verify before mixing with existing lubricant |
| Tube Dimensions | Not reliably verified |
| Tube Weight | Not reliably verified as a packaged OEM value |
| Maintenance Reference | 8,000 hours for 47588564001 |
| Compatibility | Motor-, compressor-, and lubrication-procedure dependent |
The 13.7 oz tube size is supported by multiple product and trade records. Exact lubricant-property values should be taken from the applicable current product technical data sheet rather than inferred from the part number.
Recommended Companion Models
| Model | Product Name |
|---|---|
| 39218193 | Ingersoll Rand Motor-Bearing Grease |
| 92844729 | Ingersoll Rand Grease, 400 g Cartridge |
| 54772595 | Ingersoll Rand Ultra Coolant, 1 Gallon |
| 54772603 | Ingersoll Rand Ultra Coolant, 5 Gallon |
