Woodward 180004, Ball Thrust Bearing Assembly - Tempest PMA
Tempest AG180004-PMA
The Tempest AG180004 (Woodward OEM 180004) is an FAA-PMA replacement ball thrust bearing assembly for Woodward applications.
- Supports smooth axial load transfer to help maintain predictable governor response during RPM changes.
- Helps reduce friction and wear in the thrust bearing stack, which can improve long-term stability and reduce repeat maintenance.
- Restores a critical bearing element during overhaul when inspection reveals brinelling, spalling, roughness, or out-of-limit wear.
Ball thrust bearings are commonly addressed during governor overhaul because bearing condition directly affects internal motion quality and repeatability. PJi® supports aviation maintenance professionals with OEM-cross referenced governor components used in constant speed propeller systems.
Installation notes
Refer to the applicable governor and engine maintenance manual for full installation procedures, torque values, and inspection requirements.
- Replace the bearing if there is roughness, brinelling, spalling, discoloration, or uneven wear patterns per the overhaul manual.
- Maintain strict cleanliness and protect bearing faces during assembly to prevent early surface damage.
- Confirm mating races and washers are in acceptable condition. A worn mating surface can shorten the life of a new bearing.
Applications and fitment
Used in Woodward propeller governor thrust bearing stack configurations where OEM 180004 is specified. Confirm compatibility by matching the OEM part number and verifying the bearing stack callouts in approved maintenance documentation for your specific governor model and serial number.
Tempest AG180004 is the direct replacement for OEM 180004. Confirm applicability by governor model and dash number and verify dimensional and inspection limits in approved maintenance data.
Pilot John International supplies Tempest PMA propeller governor components to propeller overhaul shops, FBOs, MROs, and aviation maintenance technicians supporting aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AG180004 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.8 x 0.8 x 0.1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA |
| Dimensional reference | NSN listings associate part number 180004 with a thrust ball bearing and publish an overall height range of 0.2760 to 0.2860 in, an outside diameter range of 0.7350 to 0.7400 in, and a bore smallest diameter range of 0.2500 to 0.2530 in. Verify the correct bearing variant and allowable limits in the approved governor manual for your exact model and dash number. |
| OEM P/N | 180004 |
| Tempest P/N | AG180004 |
| Type | Ball thrust bearing assembly, Woodward governor bearing stack component |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Hawker Beechcraft | Queen Air , Twin-Bonanza |
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QUESTIONS & ANSWERS
Tempest AG180004 is a direct FAA-PMA replacement for Woodward P/N 180004. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AG180004 Ball Thrust Bearing Assembly is designed for use in aircraft equipped with Woodward model 210190 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AG180004 Ball Thrust Bearing Assembly supports combined axial and rotational loads, ensuring smooth governor operation under varying RPM conditions and load changes. Reducing friction on thrust and rotational forces within the propeller governor helps maintain precise RPM control and long-term component durability.
PJi offers the Tempest AG180004 as an FAA-PMA-approved replacement for the Woodward 180004 ball thrust bearing assembly. View our full selection of Tempest propeller governor parts to find the correct component for your application.
For a deeper look at how propeller governors work, why proper maintenance matters, and how to identify compatible replacement components, refer to our Ultimate Guide to Aircraft Propeller Governor Maintenance.
