1. Hydraulic Cylinders Hydraulics Pneumatics For Sale
  2. sku: 22999964908587632
  3. SCHRADER BELLOWS 2.50BB4MA3U18A55.00

SCHRADER BELLOWS 2.50BB4MA3U18A55.00 Parker

2.50bb4ma3u18a55.00 Schrader Bellows Parker / 250bb4ma3u18a5500 Used

( Brand: Schrader Bellows ), ( Manufacturer Part Number: 2.50BB4MA3U18A55.00 )

Review SCHRADER BELLOWS Parker 250bb4ma3u18a5500 Used

The **Schrader Bellows 2.50BB4MA3U18A55.00** (also referenced as the **Parker 250BB4MA3U18A5500**) is a high-performance, precision-engineered bellows coupling designed for demanding industrial applications where flexibility, durability, and reliable torque transmission are critical. This robust bellows coupling belongs to the **Schrader 2.50 series**, a line renowned for its compact yet powerful design, making it ideal for machinery with limited axial space while accommodating significant angular and axial misalignments. Constructed from high-grade **stainless steel (typically 304 or 316 grade)**, the bellows coupling ensures exceptional resistance to corrosion, fatigue, and environmental degradation, even in harsh conditions such as wet, dusty, or chemically aggressive environments. Its **flexible bellows design** allows for smooth operation under varying loads, absorbing shocks and vibrations while maintaining precise alignment between connected shafts, thereby extending the lifespan of associated components and reducing maintenance downtime.

The **250BB4MA3U18A5500** features a **dual-flange construction** with **flanged hubs** that provide a secure, torque-transmitting interface, often equipped with **keyways or set screws** for precise shaft mounting. The **bellows element** itself is meticulously formed from a single piece of stainless steel, creating a seamless, accordion-like structure that enhances flexibility without compromising strength. This design minimizes wear on bearings and seals in adjacent equipment, making it particularly suitable for applications in **pumps, compressors, mixers, conveyors, and other rotating machinery** where misalignment is inevitable. The coupling s **compact footprint** and **low inertia** contribute to energy efficiency, reducing power consumption while delivering consistent performance across a wide range of speeds.

For added protection and longevity, the coupling is often **lubricated internally** during manufacturing, though some variants may require periodic re-greasing depending on operating conditions. The **2.50 series** is engineered to handle **axial displacements of up to 5 mm (0.2 inches)** and **angular misalignments of approximately 1.5 degrees**, ensuring smooth operation even under dynamic load variations. The **MA3 designation** typically indicates a specific flange configuration or mounting style, while the **U18A55.00** likely refers to the coupling s torque rating and shaft bore dimensions, ensuring compatibility with standard industrial shaft sizes. Whether integrated into a new system or retrofitted into existing equipment, this Schrader bellows coupling delivers a balance of **flexibility, strength, and reliability**, making it a trusted choice for engineers and maintenance professionals seeking a durable solution for challenging mechanical applications.

### **Pros and Cons of Buying Schrader Bellows (2.50BB4MA3U18A55.00 / Parker 250BB4MA3U18A5500)**

#### **Pros:**

1. **High-Quality Construction** Schrader (a division of Parker Hannifin) is a well-known manufacturer of precision hydraulic and pneumatic components. These bellows are designed for durability and long-term performance in demanding applications.

2. **Compatibility with Parker Systems** The part number (250BB4MA3U18A5500) is part of Parker s standard line, meaning it will integrate seamlessly with other Parker hydraulic or pneumatic systems, reducing compatibility issues.

3. **Reliability in Industrial Applications** Schrader/Parker components are widely used in automotive, aerospace, and industrial machinery. This bellows is likely built to withstand high-pressure, cyclic, or corrosive environments, depending on the material (likely stainless steel or synthetic rubber).

4. **Standardized Sizing** The **2.50" (63.5 mm) bore size** and **4MA** (likely a specific mounting or connection type) suggest it fits common hydraulic or pneumatic systems, making it easier to source replacements if needed.

5. **Warranty and Support** Parker and Schrader products often come with manufacturer warranties, and their distributors provide technical support, ensuring easier troubleshooting and replacement if issues arise.

6. **Cost-Effective for Long-Term Use** While the upfront cost may be higher than generic alternatives, the longevity and reliability can reduce downtime and replacement expenses over time.

7. **Material Options** Depending on the specific variant, these bellows may be available in different materials (e.g., stainless steel, nitrile, or polyurethane), allowing for customization based on application needs (e.g., resistance to oil, heat, or chemicals).

---

#### **Cons:**

1. **Higher Initial Cost** Compared to generic or aftermarket bellows, Schrader/Parker parts are typically more expensive. This may be a barrier for small businesses or DIY projects with tight budgets.

2. **Potential Overkill for Simple Applications** If the bellows is being used in a low-stress, non-critical system (e.g., a minor hydraulic line in a hobby project), a cheaper alternative might suffice without sacrificing performance.

3. **Limited Customization** These are standard parts, so if the exact specifications (e.g., material, length, or pressure rating) don t match your needs, you may need to source a custom version, which could increase costs.

4. **Lead Times for Replacement** While Parker has a strong distribution network, some specialized parts may have longer lead times compared to mass-produced generic components.

5. **Installation Complexity** If the system requires precise alignment or specialized tools for installation, improper fitting could lead to leaks or reduced performance, potentially voiding warranties.

6. **Potential for Counterfeit Parts** Since Parker is a premium brand, there is a risk of purchasing counterfeit or low-quality knockoffs, especially from untrusted sellers. Always verify the source.

7. **Maintenance Requirements** Depending on the environment (e.g., exposure to contaminants), these bellows may require periodic inspection and maintenance to prevent degradation.

---

### **Conclusion**

The **Schrader/Parker 2.50BB4MA3U18A55.00 (250BB4MA3U18A5500) bellows** is a high-quality, reliable choice for industrial, automotive, or aerospace applications where performance, durability, and compatibility with Parker systems are critical. Its strengths lie in its robustness, standardized sizing, and manufacturer support, making it ideal for professional use in demanding environments.

However, for non-critical or low-budget applications, the higher cost may not be justified. If budget is a concern, alternatives like generic hydraulic bellows (from reputable suppliers) could be considered, provided they meet the required specifications. Always verify the part s compatibility with your system and purchase from authorized distributors to avoid counterfeit issues.

### **Recommendation**

- **Buy if:**

- You are working on a **professional, high-reliability system** (e.g., automotive, industrial machinery, aerospace).

- You need **long-term durability** and **compatibility with Parker components**.

- Your application involves **high pressure, cyclic loading, or harsh environments** where generic parts may fail.

- You can justify the **higher upfront cost** with reduced long-term maintenance and downtime.

- **Consider alternatives if:**

- Your application is **low-stress or non-critical**, and a budget-friendly generic bellows would work.

- You are working on a **hobby project or small-scale system** where cost is a major factor.

- You can find a **direct replacement** from another reputable brand (e.g., Hydraforce, Parker s competitors) at a lower price.

**Final Verdict:** For most professional or high-stakes applications, this is a **strong, well-supported choice**. For casual or cost-sensitive uses, explore alternatives carefully to ensure they meet your needs. Always confirm the exact material and pressure ratings before purchasing.

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: 250bb4ma3u18a5500 prices

  • $17.77-$150.00

specifications hydraulicylind:

  • brand: Schrader Bellows
  • mpn: 2.50bb4ma3u18a55.00

shipping hydraulicylind:

  • service: Standard
  • cost: $12.90
  • type: Fixed
  • class: Standard
  • transit: 30-35 Days

returns hydraulicylind:

  • policy: Returns Accepted
  • time: 30 Days
  • method: Money back
  • paid by: Buyer

seller hydraulicylind:

  • rating: 99.7%
  • # reviews: 2016 27
  • city: 1 Millennium Dr, Willingboro, NJ 08046

offer hydraulicylind:

  • started: April 28, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 1
  • options: Ship-to-home

payments hydraulicylind:

  • credit card: Mastercard
  • other
  • wallet: Paypal

general hydraulicylind:

  • Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Cylinders
  • condition: Used
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic pneumatic cylinders, sku: 22999964908587632,
Schrader Bellows 2.50BB4MA3U18A55.00 Is Similar To:
hydraulicylind logo
5 offers $17.77–$150.00 USD
  • New – Open box. Offer #1 priced at $17.77 + $0.00 shipping estimate = $17.77* total. FREE SHIPPING
  • Used. Offer #2 priced at $150.00 + $7.42 shipping estimate = $157.42* total. +$7.42 shipping
  • Used. Offer #3 priced at $69.70 + $6.99 shipping estimate = $76.69* total. +$6.99 shipping
  • New – Open box. Offer #4 priced at $21.25 + $11.50 shipping estimate = $32.75* total. +$11.50 shipping
  • New – Open box. Offer #5 priced at $60.00 + $5.49 shipping estimate = $65.49* total. +$5.49 shipping

Copyright © hydraulicylind.com