Introduction
The Ingersoll Rand 47647274001 92844729 Motor Bearing Grease is a maintenance lubricant associated with compressor motor-bearing service. The 47647274001 reference is listed as a 2000-hour preventive maintenance package for the ML37 Skycar air compressor, while 92844729 is identified as a grease cartridge used for applicable motor-bearing lubrication.
Motor bearings are critical to compressor reliability because they support rotating components throughout extended operating cycles. Appropriate lubrication helps control friction, manage operating temperature, and reduce mechanical wear. For equipment working under demanding industrial conditions, maintaining the correct lubrication regime is an important part of preventive maintenance.
Ingersoll Rand documentation identifies 92844729 as Esso Unirex N3 for applicable 50 Hz motors. The same documentation notes that 60 Hz motors should follow the grease specification shown on the motor nameplate, emphasizing the importance of application-specific lubricant selection.
The 400 g cartridge format provides a practical solution for scheduled service and helps maintenance personnel handle the lubricant efficiently. When applying the grease, technicians should avoid over-packing the bearings and prevent dirt or other contaminants from entering the bearing assembly.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Package Number | 47647274001 |
| Lubricant Part Number | 92844729 |
| Product Type | Motor Bearing Grease |
| Product Description | High-temperature motor-bearing grease |
| Lubricant Identification | Esso Unirex N3 for applicable 50 Hz motors |
| Package Format | Grease cartridge |
| Nominal Quantity | 400 g |
| Primary Application | Electric motor bearing lubrication |
| Associated Maintenance Package | 2000-hour preventive maintenance package |
| Associated Compressor | ML37 Skycar |
| Motor Frequency Application | 50 Hz, subject to applicable equipment documentation |
| 60 Hz Application | Follow grease specification on motor nameplate |
| Lubrication Method | Apply according to applicable maintenance procedure |
| Dimensions | Application-specific; verify current package documentation |
| Weight | Approx. 0.4 kg for the nominal grease quantity |
| Compatibility | Verify motor, bearing, grease specification, and existing lubricant compatibility before use |
Recommended Companion Models
| Model | Product Name |
| 47647272001 | 1000-Hour Preventive Maintenance Package — ML37 Skycar |
| 47647273001 | 1000-Hour Preventive Maintenance Package — ML55 Crane |
| 47647275001 | 2000-Hour Preventive Maintenance Package — ML55 Crane |
| 39218193 | Mobilith SHC 220 Motor Grease |
Frequently Selected Alternatives
| Model | Product Name |
| 39204292 | Chevron Black Pearl #2 Grease |
| 39161641 | Chevron SRI 2 Grease |
| 38034914 | Ingersoll Rand Motor Grease |
| 92844729 | Ingersoll Rand Motor Bearing Grease |
