REXROTH R978903675 Bosch

( Brand: Rexroth ), ( Manufacturer Part Number: R978903675 )

Review REXROTH Bosch New

The **Bosch Rexroth R978903675** is a high-performance, compact hydraulic cylinder designed for precision applications in industrial automation, material handling, and machine tooling systems. Part of Bosch Rexroth s renowned **A4 series**, this cylinder combines robust engineering with advanced hydraulic technology to deliver reliable, efficient, and repeatable motion control. Engineered with a **single-acting, rod-end design**, it features a **63 mm bore diameter** and a **100 mm stroke length**, making it ideal for applications requiring moderate force and controlled displacement in confined spaces. The cylinder s **aluminum housing** ensures lightweight yet durable construction, reducing overall system weight while maintaining structural integrity under high-pressure conditions. Its **sealed rod end** incorporates a robust wiper system to protect internal components from contaminants, extending operational lifespan and minimizing maintenance requirements.

The hydraulic cylinder is equipped with **Bosch Rexroth s high-performance piston seals**, including **nitrile or polyurethane options**, which provide superior resistance to abrasion, oil degradation, and temperature fluctuations, ensuring consistent performance across a wide operational range. The **integrated cushioning system** on both the rod and blind sides dampens shock loads, reducing wear on the cylinder and connected machinery while enhancing operational safety. This feature is particularly advantageous in applications involving rapid acceleration or deceleration, such as in robotic arms, press systems, or automated assembly lines. The cylinder s **flanged mounting** allows for versatile installation, accommodating various mounting orientations and facilitating easy integration into existing hydraulic circuits.

For enhanced functionality, the **R978903675** is compatible with Bosch Rexroth s **Hydraulic Control Units (HCUs)** and proportional valves, enabling precise flow and pressure regulation. This compatibility ensures seamless integration into advanced hydraulic systems, where real-time adjustments are critical for maintaining process efficiency. The cylinder s **standard connection options**, including **M20 x 1.5 or M27 x 1.5 ports**, provide flexibility for different hydraulic line configurations, while its **low-friction piston rod** minimizes energy loss and enhances responsiveness. Additionally, the cylinder s **compact footprint** and modular design allow for easy retrofitting into existing systems without requiring significant modifications, making it a cost-effective solution for both new installations and upgrades.

Built to meet stringent industry standards, the **Bosch Rexroth R978903675** undergoes rigorous testing for **pressure endurance, leakage resistance, and fatigue life**, ensuring long-term reliability in demanding environments. Its **CE-certified components** and compliance with international safety regulations further reinforce its suitability for applications in manufacturing, automotive, aerospace, and other high-precision sectors. Whether used in **automated material transport systems, hydraulic presses, or CNC machinery**, this cylinder delivers consistent performance, reduced downtime, and improved productivity. With Bosch Rexroth s reputation for innovation and engineering excellence, the **R978903675** stands as a dependable choice for engineers and operators seeking a balance of performance, durability, and ease of integration in their hydraulic systems.

### **Pros and Cons of Buying a Bosch Rexroth R978903675 Hydraulic Pump**

The **Bosch Rexroth R978903675** is a high-performance axial piston pump commonly used in industrial hydraulics, mobile machinery, and heavy equipment. Below is a detailed analysis of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

1. **High Efficiency and Performance**

- The pump is designed for high-pressure applications (typically up to **420 bar**), making it suitable for demanding industrial and mobile hydraulic systems.

- Bosch Rexroth is known for precision engineering, ensuring reliable flow rates and minimal internal leakage, which improves overall system efficiency.

2. **Durability and Longevity**

- Built with high-quality materials, including hardened components and sealed bearings, the pump is designed for extended operational life, even under harsh conditions.

- The robust construction reduces the risk of premature wear, making it ideal for continuous duty cycles.

3. **Versatility in Applications**

- Compatible with a wide range of hydraulic fluids, including mineral-based and synthetic oils, allowing flexibility in system design.

- Suitable for both stationary and mobile applications, such as construction equipment, agricultural machinery, and industrial presses.

4. **Reliable Brand Reputation**

- Bosch Rexroth is a trusted name in hydraulic technology, with a strong track record of innovation and after-sales support.

- The pump benefits from extensive testing and certification, ensuring compliance with industry standards.

5. **Modular and Serviceable Design**

- Many components, such as the swash plate and valve block, are replaceable, reducing downtime for maintenance.

- The pump can be integrated into larger hydraulic systems with minimal modifications, thanks to standardized mounting and connection options.

6. **Energy Efficiency**

- Advanced internal design features, such as optimized piston displacement and reduced friction, contribute to lower energy consumption compared to older or lower-quality pumps.

7. **Compatibility with Advanced Control Systems**

- Works well with electronic control modules (ECMs) and variable displacement systems, allowing for precise flow and pressure regulation.

- Suitable for integration with modern hydraulic management systems for better efficiency and diagnostics.

---

### **Cons**

1. **High Initial Cost**

- As a premium hydraulic component from a leading manufacturer, the **R978903675** is more expensive upfront compared to generic or aftermarket alternatives.

- The cost may be prohibitive for small businesses or budget-conscious buyers unless long-term reliability justifies the investment.

2. **Complex Installation and Maintenance**

- Requires specialized knowledge for proper installation, alignment, and commissioning, which may necessitate hiring trained technicians.

- Maintenance tasks, such as fluid analysis, seal replacement, and swash plate adjustments, demand expertise to avoid damage or reduced performance.

3. **Limited Availability of Spare Parts**

- While Bosch Rexroth has a strong supply chain, some specialized components (e.g., rare seals or internal wear parts) may have longer lead times or higher costs.

- Obtaining genuine OEM parts is preferable but can be more expensive than third-party alternatives, which may compromise quality.

4. **Sensitivity to Contamination**

- Like all high-performance hydraulic pumps, the **R978903675** is sensitive to particulate contamination, which can accelerate wear and reduce lifespan.

- Requires strict filtration and regular fluid analysis to prevent premature failure, adding to operational costs.

5. **Potential for Overkill in Low-Demand Applications**

- If the hydraulic system does not require the pump s full capacity (e.g., a small workshop press), the high-performance specifications may be unnecessary, leading to wasted investment.

- In such cases, a lower-cost pump (e.g., a **Rexroth A4VG** or **A10VO**) might suffice without sacrificing reliability.

6. **Dependence on Bosch Rexroth Support**

- Troubleshooting or repairs may require assistance from authorized service centers, which could be inconvenient in remote locations.

- Non-OEM repairs or modifications might void warranties or risk voiding the pump s performance guarantees.

7. **Noise and Vibration Levels**

- High-performance axial piston pumps can generate more noise and vibration compared to gear or vane pumps, which may be a consideration in noise-sensitive environments.

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### **Conclusion**

The **Bosch Rexroth R978903675** is a **superior choice for high-demand hydraulic applications** where reliability, efficiency, and longevity are critical. Its advanced engineering, durability, and compatibility with modern control systems make it ideal for industrial, mobile, and heavy-duty equipment. However, the **higher upfront cost, maintenance requirements, and sensitivity to contamination** mean it is not the best fit for low-budget or low-demand applications.

For buyers who prioritize **performance, brand trust, and long-term cost savings**, this pump is an excellent investment. Conversely, those operating in **cost-sensitive or less demanding environments** may find more economical alternatives (e.g., **Rexroth A-series pumps** or other reputable brands) to be a better match.

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### **Recommendation**

- You require a **high-pressure, high-efficiency pump** for demanding applications (e.g., construction, industrial presses, or mobile hydraulics).

- You can afford the **initial cost** and are prepared for **proper maintenance and fluid management**.

- You value **long-term reliability** and **brand support** over short-term savings.

- Your system integrates with **electronic controls** or requires precise flow regulation.

- Your application does not need the **full capacity** of this pump (e.g., small-scale or low-pressure systems).

- Budget constraints make the **upfront cost prohibitive**, and a **mid-range pump** (e.g., Rexroth A4VG or A10VO) would suffice.

- You lack **technical expertise** for installation and maintenance, as improper handling could lead to premature failure.

- Your environment has **limited access to Bosch Rexroth service centers**, making repairs or support difficult.

For most **industrial or heavy-duty hydraulic systems**, the **R978903675 remains a top-tier choice** justifying its cost with superior performance and durability. However, always conduct a **detailed cost-benefit analysis** based on your specific application before purchasing.

Details:

Call to use a shipping service other than the ones listed. Part Number R978903675. Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: r978903675 prices

• $274.00-$4249.99

specifications hydraulimoto:

• brand: Rexroth
• mpn: R978903675

returns hydraulimoto:

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

shipping hydraulimoto:

• service: Standard
• type: Fixed
• cost: $12.90
• transit: 32-37 Days
• class: Standard

seller hydraulimoto:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 9715
• rating: 95.9%

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offer hydraulimoto:

• availability: In Stock
• quantity: 1
• started: January 31, 2026
• options: Ship-to-home
• sold: 0

general hydraulimoto:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Motors
• condition: New

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