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Description
9-100-1108 Pool Cleaner Wheel Ball Bearings for Zodiac Polaris Pressure Cleaners (360, 380, 3900 Sport Vac-Sweep, ATV Models) - 8 Pack9 100 1108 Wheel Ball Bearing Replacement Key Features Precision Glide Technology: Specifically engineered with high tolerance internal ball bearings to ensure the drive wheels rotate with zero resistance, allowing the cleaner to maintain consistent speed across the pool floor. Dual Shielded Debris Protection: Features a reinforced metal shield on both sides of the bearing to prevent fine sand, silt, and plaster dust from entering the races, which is
9-100-1108 Wheel Ball Bearing Replacement
Key Features
- Precision Glide Technology: Specifically engineered with high-tolerance internal ball bearings to ensure the drive wheels rotate with zero resistance, allowing the cleaner to maintain consistent speed across the pool floor.
- Dual-Shielded Debris Protection: Features a reinforced metal shield on both sides of the bearing to prevent fine sand, silt, and plaster dust from entering the races, which is the leading cause of bearing seizure.
- Corrosion-Resistant Stainless Steel: Manufactured from premium-grade stainless steel that is fully compatible with saltwater systems, high chlorine levels, and varying pH balances without rusting.
- High-Load Durability: Designed to support the weight of the cleaner head and the torque of the drive system without warping or flat-spotting the internal balls over long-term use.
Replaces / Cross-Reference Part Numbers
- 9-100-1108
- 91001108
- 25563-270-800
Compatibility & Fitment
This bearing is designed specifically for the wide-track wheel systems used on Polaris belt-driven and gear-driven models. Key compatible models include:
- Polaris 380 / Vac-Sweep 380: Standard replacement for all wheel axles.
- Polaris 360 / Vac-Sweep 360: Fits the 360 series (which does not require a booster pump).
- Polaris 3900 Sport: Direct fit for the high-performance P39 series.
- Polaris 480 PRO: Compatible with the professional-grade 4-wheel drive system.
- Polaris ATV: Fits the specialized All-Terrain Vehicle model drive wheels.
- Note: These are not the same as the C-80 bearings used on the Polaris 280. Ensure your model is listed above before installation.
When to Replace
- Wheels "Dragging" or Stuck: The cleaner is moving slowly because the internal balls have rusted or are jammed with grit.
- Significant Wheel Wobble: If the wheels lean to the side or vibrate excessively, the bearing race has worn down and lost its structural integrity.
- Screeching or Grinding Sound: Audible metal-on-metal noise indicates the lubrication has failed and the bearing is failing.
- Belt Failure: On 360/380 models, seized bearings can put excessive strain on the drive belts, causing them to snap or slip.
Installation Tips
- The "Clean Seat" Rule: PRO TIP: Before pressing the new 9-100-1108 bearings into the wheel, use a damp cloth to wipe the plastic wheel hub. Any sand trapped between the bearing and the wheel will cause the bearing to sit crooked.
- Apply Pressure Evenly: When installing, press only on the outer metal rim of the bearing. Pressing on the center shield can collapse the bearing and ruin it before it’s even used.
- Check the Axle Nut: Ensure the wheel screw/nut is tightened enough to remove wobble, but not so tight that it "pinches" the bearing. The wheel should spin for 5–10 seconds when flicked by hand.
- Water Lubricated: Like most pool bearings, these are designed to be "wet-lubricated" by pool water. Do not apply oil or grease, as they will attract dirt and shorten the lifespan.
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Comprehensive, clear and coherent!
Format: Paperback
The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.
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Reviewed in the United States on July 23, 2019
★★★★★ 1
No recomiendo
Format: Paperback
Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
An absolute must for everyone dabbling with Unity 6 Game Development
Format: Paperback
Half of this book is about C# (until Chapter 6), and the other half is about actually making games. The book is very well written, and it is everything I needed to get a few problems solved with Unity 6 projects. I love how clearly things are explained, and the only thing I wish for is that I was able to spend more time delving into this while maintaining my financial status...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 5
A Seasoned Developer's Fresh Perspective on Game Development
Format: Paperback
Finally, a game dev book that respects your existing programming knowledge
As someone who's spent two decades architecting enterprise web applications in C# and ASP.NET, I approached game development with what I thought was a solid foundation. I was wrong—not about C#, but about how differently it's applied in game engines. After five frustrating years of trying to bridge that gap through scattered tutorials and documentation, Harrison Ferrone's eighth edition finally gave me the structured path I needed.
What This Book Gets Right for Experienced Developers:
The pacing is deceptive. Yes, it starts with programming fundamentals, but don't skip ahead. Ferrone's approach to OOP in the context of Unity's component architecture was revelatory. In web dev, I'd been writing services, repositories, and dependency injection for years. Here, the MonoBehaviour lifecycle and component-based thinking required a genuine mental shift that the book handles exceptionally well in chapters 5-6.
Chapter 10's revisit of types and methods isn't redundant—it's strategic. By this point, you've written enough Unity scripts to appreciate why game code patterns differ from traditional enterprise patterns. The discussion of value types vs reference types hits differently when you're optimizing frame rates instead of HTTP response times.
The Unity 6 Update Matters:
Having struggled with outdated Unity tutorials for years, the Unity 6-specific content is invaluable. The screenshots are comprehensive (full-screen mode can make text small, but the GitHub repo and graphics bundle solve this). More importantly, the code samples reflect current Unity APIs and best practices, not deprecated approaches that still litter Stack Overflow.
Where It Shines for Career Transitioners:
Chapters 11-13 are worth the price alone. LINQ in Unity isn't just about querying collections—it's about performance considerations I never had to think about in web apps. The coverage of generics, delegates, and events finally connected how Unity's event system relates to patterns I already knew, but in a real-time context where every allocation matters.
The serialization chapter (12) bridged my understanding of data persistence from databases and JSON APIs to Unity's PlayerPrefs and ScriptableObjects. This practical grounding is what most tutorials skip.
Minor Quibbles:
The FPS prototype is solid for learning, but I wish there was more discussion of common anti-patterns experienced developers bring from other domains. I still catch myself over-engineering solutions when Unity's component system offers simpler approaches.
Also, while the book touches on performance, those coming from async/await-heavy web development will need supplementary resources on Unity's coroutines and the Job System for more complex scenarios.
Bottom Line:
If you're a professional developer trying to break into game development, stop collecting random Udemy courses. This book provides the structured progression and context-appropriate examples that respects your intelligence while teaching you to think like a game developer. The C# you know is necessary but not sufficient—Ferrone bridges that gap methodically.
After years of false starts, I finally have a working game prototype and, more importantly, the mental models to keep building. That's worth significantly more than the cover price.
Disclosure: I received an advance review copy from Packt Publishing. This honest review reflects my genuine experience as a career-changing developer.
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Reviewed in the United States on October 21, 2025
★★★★★ 5
A Worthy Touchstone for Anyone Who Wants to Master Unity
Format: Paperback
Harrison Ferrone’s Learning C# by Developing Games with Unity 6 is one of the strongest beginner-to-intermediate Unity guides I’ve read: carefully structured, patient in its explanations, and quietly packed with insight about how Unity 6 and C# truly work together. I read the physical edition while sitting in front of a blank Unity project, and the experience felt like having a seasoned sailor point out the currents of a river I’ve been navigating for years. You see the familiar terrain differently.
The book’s early decision to spend real time on C# fundamentals is a welcome choice. Most Unity books skip past the language; Harrison slows down, defines concepts, and gives you enough clarity that when you finally enter Unity, you understand why things behave the way they do. Those chapters are dense in the best way: they prep beginners to stand on solid ground and give experienced users a clean, refreshed mental model of the language under the engine.
Ferrone’s real strength is his voice. He strikes a balance I rarely see in technical writing: conversational introductions that explain what you’re about to learn and why it matters, followed by crisp, accessible technical walkthroughs. The pacing (explanation → example → implementation) is excellent. And the inclusion of ready-to-use assets removes one of the biggest barriers for new developers who want to understand systems without getting lost creating placeholder art.
The book doesn’t talk down to anyone. It makes Unity feel more accessible without flattening its complexity. Beginners will come away with genuine competence; advanced users will appreciate the clear framing of new Unity 6 tools and the subtle recognition of how AI-assisted coding is shaping modern workflows. It’s a guide you can read once for understanding, then keep at your desk as a reference.
If you’re a serious hobbyist, a technically inclined beginner, or someone who’s ready to work through your first real project, this is the Unity book I’d hand you first. It bridges concept and execution with clarity and confidence, and it does so with a tone that feels patient, practical, and quietly encouraging. In a space crowded with copy-paste tutorials, Harrison Ferrone has written a Unity 6 guide with real staying power.
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Reviewed in the United States on December 16, 2025
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