SP-4 OIL BEARING (IW10508) B-45
- SP-4: This indicates it's the 4th spare part listed for the IW10508 model in Ingco's parts catalog.
- OIL BEARING: This refers to a type of bearing that is designed to operate with a continuous supply of oil for lubrication. These are often porous bronze or other metal alloys that are impregnated with oil during manufacturing. As the shaft rotates and heats up, the oil seeps out to provide lubrication, and when the bearing cools, the oil is reabsorbed. Oil bearings are known for their quiet operation and self-lubricating properties in certain applications. In an impact wrench, such bearings would be critical for supporting rotating shafts (like the motor's armature shaft or gear shafts) under high speed and load, reducing friction and wear.
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