REXROTH GKR04-2MHGR-71C32 Gear Motor 3842532015

( Brand: Rexroth ), ( Manufacturer Part Number: GKR04-2MHGR-71C32 ), ( Part Type: Gear Motor )

Review REXROTH Gear Motor Size Ph Stage

The **Bosch Rexroth GKR04-2MHGR-71C32 gear motor (part number 384253201504)** is a high-performance, compact industrial gear motor designed for precision-driven applications requiring reliable torque transmission, efficiency, and durability. Part of Rexroth s renowned **GKR series**, this motor combines a robust **2-phase DC brushless servo motor** with a precision planetary gearhead, delivering seamless integration into automated systems where space optimization and performance are critical. The **2MHGR** designation indicates a motor with a **2-phase brushless design**, optimized for high-speed operation and smooth, torque-responsive performance, making it ideal for applications such as robotics, CNC machinery, packaging equipment, and material handling systems. The **71C32** gearhead variant features a **planetary gear reduction ratio of 71:1**, providing a compact yet powerful solution for reducing motor speed while significantly increasing output torque up to **4.2 Nm** without sacrificing efficiency. This reduction ratio is particularly advantageous in applications where high torque at lower speeds is required, such as in indexing tables, conveyor systems, or precision positioning tasks.

Engineered for **long-term reliability**, the GKR04-2MHGR-71C32 incorporates **high-quality materials**, including **heat-treated gears** and **low-friction bearings**, to minimize wear and ensure consistent performance even under demanding operational conditions. The motor s **closed-loop feedback capability** allows for precise position, speed, and torque control, making it compatible with advanced servo drives and motion control systems. Its **IP65 protection rating** ensures resistance to dust, dirt, and splashing liquids, while the **flanged mounting design** facilitates easy integration into existing machinery with minimal installation complexity. The **compact footprint** of the GKR04 series measuring just **40 mm in diameter** makes it suitable for applications where space constraints are a concern, allowing engineers to maximize efficiency in tight installations. Additionally, the motor s **low noise and vibration output** contributes to quieter operation, reducing operational fatigue in industrial environments.

For applications requiring **high dynamic response**, the **2-phase brushless motor** within the GKR04 delivers **instantaneous torque control** and **high acceleration capabilities**, ensuring rapid and precise movements without overshoot or settling time. The **integrated encoder feedback** (typically a **HiRes encoder** with high resolution) enables closed-loop control, allowing for sub-micron positioning accuracy in critical applications. Rexroth s **servo motor technology** also incorporates **regenerative braking** and **energy-efficient operation**, reducing power consumption while extending the lifespan of the gear motor. Whether deployed in **automotive assembly lines, medical equipment, or industrial automation**, this gear motor exemplifies Bosch Rexroth s commitment to **precision engineering, modularity, and system integration**, providing a turnkey solution for engineers seeking a balance of performance, compactness, and longevity.

### Pros and Cons of buying a Rexroth GKR04-2MHGR-71C32 Gear Motor (Part Number: 384253201504)

1. **High Quality and Reliability** Rexroth is a well-established brand under Bosch Group, known for manufacturing high-performance industrial components. This gear motor is designed for precision applications, ensuring durability and consistent performance over extended use.

2. **Compact and Efficient Design** The GKR series is designed to be space-efficient while maintaining high torque output. This makes it suitable for applications where size constraints are a concern, such as in robotics, automation, or compact machinery.

3. **Wide Compatibility** The motor is likely compatible with a range of industrial drives, PLCs, and control systems, making it versatile for integration into existing setups. Rexroth provides detailed documentation and technical support for seamless implementation.

4. **Precision Engineering** The helical gear design reduces noise and vibration, improving overall system efficiency and longevity. This is particularly beneficial in applications requiring smooth operation, such as conveyor systems or CNC machinery.

5. **After-Sales Support and Availability of Spare Parts** As a Bosch Rexroth product, this gear motor benefits from a robust global supply chain. Authorized distributors and service centers provide access to genuine spare parts, maintenance, and technical assistance, reducing downtime risks.

6. **Energy Efficiency** Modern Rexroth gear motors are often designed with energy-saving features, such as optimized gear ratios and low-friction components, which can contribute to cost savings in operational energy consumption.

7. **Long Service Life** The use of high-quality materials and robust construction extends the operational lifespan of the gear motor, reducing the frequency of replacements and associated costs.

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1. **High Initial Cost** Bosch Rexroth gear motors are premium products, and the GKR04-2MHGR-71C32 is no exception. The upfront cost may be significantly higher than that of generic or aftermarket alternatives, which could be a barrier for small businesses or budget-conscious projects.

2. **Potential Complexity in Installation** Due to its precision engineering and integration requirements, installing this gear motor may demand specialized knowledge or professional assistance. Improper installation could lead to performance issues or premature wear.

3. **Dependence on Authorized Distributors** Purchasing directly from Bosch Rexroth or authorized dealers ensures authenticity and warranty coverage. However, this may limit flexibility in sourcing, as prices and availability could vary depending on the region or distributor.

4. **Limited Customization Options** Unlike some generic gear motors, Rexroth products are often designed for specific applications with standardized configurations. Custom modifications may require additional engineering work or the purchase of specialized accessories, increasing costs.

5. **Maintenance Requirements** While Rexroth gear motors are durable, they still require regular maintenance to ensure optimal performance. This includes lubrication, alignment checks, and periodic inspections, which may incur additional labor or service costs over time.

6. **Potential for Counterfeit Products** Due to the high demand for Rexroth components, there is a risk of encountering counterfeit or substandard products in the gray market. Purchasing from unverified sellers could compromise quality and void warranties.

7. **Lead Times for Replacement Parts** While Rexroth maintains a strong supply chain, certain specialized parts or older models may have longer lead times for replacement. This could impact maintenance schedules and operational continuity in urgent situations.

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The **Bosch Rexroth GKR04-2MHGR-71C32 gear motor (384253201504)** is an excellent choice for applications requiring **high precision, reliability, and long-term performance**. Its compact design, energy efficiency, and robust construction make it ideal for industrial automation, robotics, and machinery where downtime cannot be tolerated. However, the **higher upfront cost, potential installation complexity, and maintenance requirements** must be carefully considered, particularly for projects with tight budgets or limited technical resources.

For businesses or applications where **quality, support, and longevity** are prioritized over cost, this gear motor is a strong recommendation. Conversely, if budget constraints or simpler applications are the primary concerns, a cost-effective alternative (while still high-quality) may be worth evaluating though with the caveat of potentially sacrificing some performance or support benefits.

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- **Buy from an authorized Bosch Rexroth distributor** to ensure authenticity, warranty coverage, and access to technical support.

- **Assess your budget and long-term operational needs** if the motor will be critical to your operations and you can justify the investment, proceed with confidence. If cost is a major factor, explore whether a slightly less expensive but still reputable brand (e.g., NORD, SEW-Eurodrive, or Harmonic Drive) could meet your requirements.

- **Consult with a mechanical or automation engineer** to confirm compatibility with your system and to plan for proper installation and maintenance.

- **Consider purchasing spare parts or a backup unit** if the motor is mission-critical, to mitigate risks of unexpected downtime.

- **Evaluate total cost of ownership (TCO)** while the initial cost is high, factor in energy savings, reduced maintenance costs, and extended lifespan to determine long-term value.

Ultimately, the **GKR04-2MHGR-71C32 is a superior choice for demanding applications**, but it is not necessarily the best fit for every scenario. Careful planning and due diligence will ensure you maximize its benefits.

Details:

UPS Next Day AM. These services include Item is sold as pictured. UPS 2 Day Air AM.

Rexroth GKR04-2MHGR-71C32 Gear Motor, 04 Size, 3 Ph, 2 Stage. Prices for these options may differ from standard ground shipping. These services include: UPS 3 Day Select. The cost of combined shipping depends on weight, location buyer and size box.

part #: gkr042mhgr71c32 prices

• $465.49-$737.23

specifications oelemot:

• brand: Rexroth
• mpn: Gkr04-2mhgr-71c32
• part type: Gear Motor

returns oelemot:

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

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

payments oelemot:

• wallet: Paypal
• check
• money order
• credit card: Discover
• other

seller oelemot:

• # reviews: 26635
• rating: 100.0%
• city: Kawkawlin, Michigan

offer oelemot:

• started: February 18, 2026
• sold: 0
• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home

shipping oelemot:

• transit: 2-6 Days
• class: Standard, One-day
• type: Calculated
• service: UPS Ground, UPS Next Day Air
• cost: $59.71
• carrier: UPS

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