The 28944RP speed Queen Washer Upper or Lower Bearing is a replacement bearing assembly used in Speed Queen laundry machines; it is indeed a rolling-element bearing designed to support the washer tub and spin shaft within the drum and suspension assembly. As a mechanical bearing component, it provides a low-friction interface between the rotating spin basket and the static washer cabinet or shaft housing, and is typically supplied as a sealed or lubricated unit intended for press-fit installation into the tub or hub assembly.
Inside the appliance,this bearing carries radial and axial loads from the spinning basket,maintains concentric alignment of the spin basket relative to the drive components,and works in direct conjunction with the drive shaft,tub seal,bearing race,and suspension elements. Its condition affects vibration, noise, and the integrity of the tub seal; water intrusion, bearing wear, or race deformation can lead to increased running loads on the transmission or motor and can cause leaks that accelerate further component degradation. technically, correct identification of inner and outer diameters, width, interference fit tolerances, and seal type is important for reliable operation and for selecting appropriate installation and removal procedures.
This article will explain the 28944RP bearing’s function and typical installation locations, outline compatibility checks and dimensional considerations, describe common failure symptoms and diagnostic tests (including how to assess radial/axial play, noise under load, and seal leakage), and present practical troubleshooting and replacement considerations.Readers can expect guidance on inspection criteria, the mechanical interactions to verify, and the tooling and fitment practices required to replace the bearing while maintaining proper alignment and seal integrity.
Table of contents
- function and Role of the Upper and Lower Bearing Assembly in Speed Queen Washers
- How the 28944RP Speed Queen Washer Upper or Lower Bearing Integrates with the Tub, Seal, and Drive System
- Common Failure Symptoms, Measurable Indicators, and Diagnostic Criteria for Bearing Wear
- Compatibility, Replacement Considerations, Step-by-Step Installation Procedure and Post‑Install Troubleshooting
- Q&A
- Insights and Conclusions
Function and Role of the Upper and Lower Bearing Assembly in Speed Queen Washers
The bearing assembly in a Speed Queen washer locates and supports the tub and spin shaft, carrying both radial and axial loads produced during high-speed spin cycles. The 28944RP Speed Queen Washer Upper or Lower Bearing is a replacement bearing that matches the OEM geometry and tolerances for applications where either the upper or lower bearing is specified; its role is to maintain concentric alignment of the inner tub with the drive shaft, minimize friction at the bearing interface, and transfer loads into the outer housing and suspension. In practice, the bearing assembly also works in concert with the seal and hub: the bearing supports rotational loads while the seal prevents wash water and detergent from entering the bearing cavity, so compatibility with the correct seal and hub dimensions is necesary for reliable operation.
Wear or failure of the upper or lower bearing produces distinct mechanical symptoms and requires mechanical procedures for proper replacement: bearings are typically a press-fit on the shaft or in the carrier and must be installed with a hydraulic press or appropriate driver to avoid shaft or bore distortion. Technicians should verify shaft straightness, inspect the hub for scoring, and replace seals and any worn spacers during service; incorrect installation or reuse of a damaged hub will reduce bearing life and can produce vibration, accelerated wear, or leakage. For service diagnostics and quick reference, inspect for the common indicators listed below before disassembly.
- Grinding or rumbling noise at spin speeds
- Excessive tub wobble or off-center spin
- Grease or water present around the tub opening or drip pan
- Metal particles in the drain pump or filter
| Item | Description |
|---|---|
| Part | 28944RP Speed Queen Washer upper or Lower Bearing – OEM-fit bearing for support and alignment |
| Typical failure mode | Grease loss, lubricant contamination, shaft scoring leading to noise, vibration, and leaks |
How the 28944RP Speed Queen Washer Upper or Lower Bearing Integrates with the Tub, Seal, and Drive System
28944RP Speed queen Washer Upper or Lower Bearing serves as the primary support for the rotating tub, creating the mechanical interface between the tub hub and the stationary drive housing. Its inner race seats on the drive shaft while the outer race locates in the tub housing; the bearing’s geometry controls radial and axial clearance, which in turn maintains tub concentricity and minimizes runout.Proper selection and installation of this bearing require matching shaft diameter, housing bore tolerance, and the seal flange profile so that the bearing’s running clearance and preload do not compromise seal seating or introduce excessive axial play under load.
The bearing’s behavior directly affects how loads and contamination are passed to the seal and the drive system: radial loads from unbalanced loads are transmitted through the races to the housing, and any increase in bearing wear enlarges shaft-tub displacement that the seal must accommodate, accelerating seal wear and increasing leak risk. Technicians should expect that degraded bearings will present as increased noise, vibration, and reduced seal effectiveness; practical service steps include measuring shaft runout and bore roundness, cleaning mounting interfaces, and pressing the replacement bearing to the specified depth to restore correct alignment and load paths.
- Maintains tub concentricity and minimizes runout under dynamic loads
- Defines axial clearance affecting seal compression and lifespan
- Transmits radial and torque loads from tub to housing and drive shaft
- Requires correct shaft/bore tolerances and installation depth for compatibility
| Item | Description |
|---|---|
| Bearing – race interfaces | Inner race on shaft, outer race in tub housing; controls radial/axial play |
| Seal | Sits adjacent to outer/inner race contact; compression depends on bearing axial position |
| Drive system | Torque applied to shaft transfers through inner race; misalignment increases stress on bearing and seal |
Common Failure Symptoms, Measurable Indicators, and Diagnostic Criteria for Bearing Wear
The 28944RP Speed Queen washer Upper or Lower Bearing supports the tub/hub assembly and translates motor torque into smooth rotation; wear on this bearing alters load paths and produces characteristic mechanical symptoms. Upper bearings typically encounter more axial (thrust) load from the tub and agitator assembly, while lower bearings absorb combined radial and torsional loads from spin cycles and uneven laundry loads. Compatibility with a specific tub,seal,and shaft geometry matters: a worn bearing will allow increased shaft runout,accelerate seal failure,and change the vibration signature even if the replacement part is dimensionally correct,so inspection of the mating hub,seal lips,and spacer surfaces is necessary when diagnosing or installing 28944RP bearings.
Technicians can confirm bearing wear using quantitative checks and simple diagnostic tools: measure radial and axial play with a dial indicator, record vibration amplitude or acceleration at spin speed, and compare audible noise levels under loaded spin versus baseline units. Practical diagnostic criteria include measurable spindle play (for example, sustained radial wander >0.5 mm under light radial load), a consistent grinding or metallic noise present only during rotation, elevated bearing housing temperature (several degrees C above normal during a spin), or visible grease contamination and pitting on the races. Use a stethoscope or contact microphone to localize noise, and perform a static spin test and a loaded spin test to distinguish bearing defects from imbalance or suspension faults.
- Grinding or growling noise during spin
- Noticeable tub wobble or increased runout
- Grease leakage or contamination around the seal
- Localized heat at bearing housing during/after spin
| Item | Description |
|---|---|
| Radial play | Dial-indicator reading >0.5 mm at the hub under light radial load indicates significant race or roller wear |
| Audible noise | Consistent metallic/grinding sound during rotation versus baseline; use contact microphone to isolate bearing source |
| Vibration/Runout | Vibration amplitude >0.1 mm peak-to-peak at spin speed or visible tub wobble suggests compromised bearing alignment or race damage |
| Temperature rise | Housing temperature several °C above adjacent components after a spin cycle indicates increased friction from bearing degradation |
Compatibility, replacement Considerations, Step-by-step Installation Procedure and Post‑Install Troubleshooting
The 28944RP Speed Queen Washer Upper or Lower Bearing serves as the rotational interface between the inner tub and the drive shaft, providing radial and axial support while resisting water and detergent intrusion. In practical terms the upper bearing guides the tub and maintains axial location, while the lower bearing absorbs the majority of radial load from the basket during spin; the same part number is specified for replacement in several Speed Queen assemblies where the housing and shaft dimensions match. When selecting this bearing, verify shaft diameter, bearing outer diameter, and housing depth against the machine’s parts diagram; inspect the mating hub and shaft for scoring or runout because a new bearing will fail prematurely if installed on a damaged shaft or corroded housing. Replace any associated seals and the retaining hardware to restore fit and prevent early contamination of the bearing raceway.
Installation requires controlled disassembly, clean preparation of the seating surfaces, and a proper press or bearing driver to avoid misalignment or race damage; gauge fit by measuring interference and use a hydraulic press to install the new bearing squarely, applying force only to the outer race for pressed-in bearings. After reassembly follow thes practical checks and troubleshooting steps to confirm a successful repair:
- Disconnect power and water, remove the cabinet and agitator, and record component orientation before removing the tub assembly.
- Use a bearing puller or slide hammer to extract the old bearing; clean and inspect the bore and shaft, and replace seals or shaft sleeves if worn.
- Press the new bearing straight into the housing, install a new seal, reassemble with manufacturer-specified fastener torque, then run a no-load spin and listen for noise or feel for vibration.
- If you observe grinding, overheating, or leakage during the test spin, disassemble to check for contamination, misalignment, or bent components and repeat installation with corrected parts or machining as required.
| Item | Description |
|---|---|
| Recommended lubricant | High-temperature,water-resistant bearing grease for seals and hub interfaces |
| Tools required | Hydraulic press or bearing driver set,bearing puller,torque wrench,micrometer for shaft/hole checks |
| Verification checks | Radial runout within manufacturer tolerance,smooth no-load spin,no external leaks |
Q&A
Is part number 28944RP the upper bearing or the lower bearing for a Speed Queen washer?
Part number 28944RP refers to a specific Speed queen bearing/seal kit,but manufacturers sometimes use single part numbers for different kit configurations. In many machines the primary bearing people replace is the lower tub bearing (the one that supports the outer tub and shaft). To know whether 28944RP is an upper or lower bearing kit for your exact model, check the Speed Queen parts diagram for your model number or the kit contents list – the parts breakdown will show whether it includes the lower bearing, an upper bearing, seals, and associated hardware.
What are the common symptoms that indicate the bearing(s) covered by 28944RP need replacement?
Typical signs of a failing tub bearing include loud grinding or rumbling during spin, a heavy wobble or vibration of the drum, metal shavings in the tub or on the seal, grease or water leaking from the bottom of the washer, and in severe cases the drum sticking or not spinning freely. If you hear a deep growling noise that changes with spin speed, a bearing problem is likely.
Can I replace the bearing(s) myself, and what skill level and tools are required?
Replacing tub bearings is an intermediate-to-advanced job. It requires disassembling the cabinet and tub,removing the inner/outer drum,and driving or pressing bearings and seals in/out. Typical tools include a socket/ratchet set, screwdrivers, snap-ring pliers, mallet, bearing puller or driver set, and ideally a hydraulic or arbor press. some steps also require handling heavy parts and compressed springs, so mechanical aptitude and proper safety precautions are critically important. If you are not experienced with pressed bearings or major appliance disassembly, consider a qualified technician.
How long dose it usually take to replace the bearing kit like 28944RP and what should I expect for cost?
Time depends on experience and the washer model. A trained technician typically needs 1-3 hours. For an inexperienced diyer allow several hours. Parts-only cost for a genuine Speed Queen bearing/seal kit can vary (commonly in the tens to low hundreds of dollars); if you hire a technician, add labor charges. Always get a quote and confirm the kit exactly matches your model before ordering.
Does 28944RP include seals and other hardware, or do I need to buy those separately?
Many bearing kits include the bearing(s), oil seal(s), any required snap rings, spacers, and occasionally a bearing sleeve. However, kit contents vary by part number and supplier. Verify the included items on the parts listing or packaging for 28944RP before starting the repair.It is indeed best practice to replace seals simultaneously occurring as bearings to prevent leaks and premature failure.
What is the difference between an upper bearing and a lower bearing in a top-load washer, and which fails frist?
“Upper” and “lower” bearings refer to the locations where the shaft/tub assembly is supported. The lower bearing typically supports the lower end of the shaft and bears most of the load during spin,so it commonly wears out first. The upper bearing supports the top of the shaft and sees less radial load in many designs. The exact arrangement depends on the washer model; consult the technical diagram for your Speed queen to see which bearings are present and their roles.
After installing new bearings, what lubrication or break-in procedures are required?
Most modern bearings used in washers are sealed and pre-lubricated, so no additional grease is required. Make sure you also install a correct oil seal and any bearing sleeve or spacer to maintain alignment. Run a short empty spin cycle to listen for abnormal noise and check for leaks. If the kit documentation specifies a lubricant or special assembly step, follow the manufacturer’s instructions.
Any tips to prevent premature bearing failure after replacing with a kit like 28944RP?
Useful preventative steps: ensure the tub and shaft are free of burrs, corrosion, and debris before installing new parts; replace seals at the same time as bearings; ensure correct alignment and proper pressing of bearings (avoid hammering on the inner race); do not overtighten fasteners that distort the tub; avoid overloading the washer in service; and use genuine OEM parts or reputable equivalents. Also verify that the suspension/shock components are in good condition – worn suspension can increase bearing loads and shorten life.
Insights and Conclusions
The 28944RP Speed Queen washer upper or lower bearing plays a fundamental role in supporting and aligning the wash tub, reducing friction during rotation, and minimizing vibration and wear. Properly functioning upper and lower bearings are essential to maintain smooth drum motion, efficient spin cycles, and the long-term reliability of the appliance.
Accurate diagnosis of bearing condition-based on symptoms such as unusual noise,excessive wobble,reduced spin performance,or evidence of lubricant leakage-is important to determine whether repair or replacement is required. Timely replacement of a worn 28944RP bearing,together with inspection of related components (seals,shaft,and housing),helps prevent secondary damage and restores normal operation.
understanding the role of the 28944RP upper or lower bearing and acting on clear diagnostic indicators preserves washer performance and extends equipment life. When replacement is necessary, using the correct part and following recommended service procedures, or engaging a qualified technician, ensures a safe and effective repair.
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