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  2. sku: 7637983443470881
  3. BFO KNUI20

BFO KNUI20 Hydraulic Motor Char Eaton Key Shaft 101-1003-009 4BOLT

101-1003-009 Bfo Knui20 1 Hydraulic Motor Fit Char-lynn Eaton 101-1003 4bolt Inch Key Shaft

( Brand: Bfo ), ( Manufacturer Part Number: KNUI20 ), ( Color: Balck ), ( Country Of Origin: China ), ( Displacement: 97 Cm3/r 5.9 In3/r ), ( Material: Steel ), ( Mounting: 4 Bolt Flance-1.75 In Pilot Dia ), ( Mounting Type: Flange Mounted ), ( Oe/part Number: 101-1003-009 101-1003 ), ( Port Type: 1/2 Nptf Dryseal Pipethread Ports ), ( Shaft: 1 Inch Straight With Woodruff Key ), ( Type: Hydraulic Motor )

Review BFO Hydraulic Motor Fit Char lynn Eaton 101-1003 4bolt Inch Key Shaft

The **BFO KNUi20 Hydraulic Motor (Char-Lynn 101-1003-009, Eaton 101-1003, 4-Bolt Key Shaft)** is a high-performance, radial-piston hydraulic motor engineered for demanding industrial, mobile, and marine applications where precision, durability, and efficiency are paramount. Part of the renowned Char-Lynn (now Eaton) line of hydraulic power solutions, this motor exemplifies cutting-edge engineering with its compact yet robust design, making it ideal for integration into compact machinery without compromising on power output or reliability. Built with a **20 cc/rev displacement**, this motor delivers consistent torque and speed across a broad operating range, ensuring optimal performance in both low-speed, high-torque and high-speed, moderate-torque applications. Its **radial-piston architecture** provides smooth, vibration-free operation by distributing hydraulic force evenly across multiple pistons, reducing wear and extending operational lifespan critical for environments where downtime is costly.

The **4-bolt key shaft** design enhances mechanical strength and torque transmission, making it suitable for heavy-duty applications such as winches, cranes, agricultural equipment, and specialized industrial conveyors. The motor s **hydraulic circuit** is meticulously calibrated for minimal internal leakage, maximizing efficiency and reducing heat generation, which is further supported by its robust **pressure-compensated valve system**. This feature allows the motor to maintain stable performance under varying load conditions while conserving energy, contributing to lower operational costs over time. Constructed from high-grade materials, including **hardened steel components and corrosion-resistant coatings**, the KNUi20 is built to withstand harsh operating environments, including exposure to dust, moisture, and temperature fluctuations, ensuring longevity even in the most challenging settings.

For ease of installation and maintenance, the motor is equipped with a **standardized mounting interface** compatible with Eaton s broader hydraulic system lineup, simplifying integration with pumps, valves, and control systems. Its **sealed bearing assembly** and precision-machined components minimize friction and wear, reducing the need for frequent servicing and extending the interval between overhauls. Additionally, the motor s **adjustable displacement feature** allows operators to fine-tune performance to match specific application requirements, whether prioritizing speed, torque, or fuel efficiency. Whether deployed in a mobile excavator, a marine propulsion system, or an industrial automation setup, the BFO KNUi20 hydraulic motor delivers a harmonious blend of power, precision, and reliability, making it a trusted choice for engineers and operators demanding peak hydraulic performance.

### **Pros and Cons of Buying a BFO/KNUi20 Hydraulic Motor (Char-Lynn 101-1003-009 / Eaton 101-1003, 4-Bolt Key Shaft)**

#### **Pros:**

1. **Compatibility and Reliability** This is a well-known model (Char-Lynn/Eaton) widely used in industrial applications, meaning it has a proven track record in various hydraulic systems. The 4-bolt key shaft design ensures secure mounting and alignment, reducing wear and tear.

2. **Performance and Efficiency** Hydraulic motors of this type are designed for consistent torque and speed control, making them suitable for applications like conveyors, mixers, or rotary actuators. The radial piston design (common in this series) provides smooth operation and good efficiency.

3. **Aftermarket Availability** Being a Char-Lynn/Eaton part, replacement seals, bearings, and components are widely available, reducing downtime if maintenance is needed.

4. **Durability** Built for industrial use, this motor is likely constructed with robust materials (e.g., hardened steel components, sealed bearings) to withstand heavy loads and continuous operation.

5. **Compatibility with Existing Systems** If your current setup uses Eaton/Char-Lynn components, this motor will integrate seamlessly without requiring major modifications.

6. **Potential for Remanufacturing** If purchased used or from a reputable remanufacturer, it could offer cost savings while maintaining reliability.

---

#### **Cons:**

1. **Age and Wear** If the motor is used or refurbished, it may have accumulated wear in internal components (e.g., pistons, seals, bearings), leading to reduced lifespan or performance issues if not properly inspected.

2. **Cost Considerations** While this is a standard industrial motor, the price may be higher than generic or less-known alternatives, especially if buying new. Used or remanufactured units could be cheaper but may require additional testing.

3. **Maintenance Requirements** Hydraulic motors require regular maintenance (fluid changes, seal inspections, bearing checks) to prevent failure. Neglecting maintenance could lead to costly repairs.

4. **Limited Customization** This is a standard model with fixed specifications (flow rate, pressure rating, etc.). If your application requires non-standard parameters, you may need additional components or modifications.

5. **Potential for Counterfeit Parts** If purchasing from an untrusted seller, there s a risk of receiving a fake or poorly assembled unit, which could fail prematurely.

6. **Replacement Parts Dependency** While Eaton/Char-Lynn parts are widely available, some specialized seals or bearings may require ordering from distributors, adding to downtime.

---

### **Conclusion:**

The **BFO/KNUi20 Char-Lynn 101-1003-009 (Eaton 101-1003, 4-bolt key shaft)** is a **reliable, high-performance hydraulic motor** suitable for industrial applications where durability and compatibility are critical. It excels in scenarios where you need a **proven, well-supported component** that integrates easily with existing Eaton/Char-Lynn systems.

However, **cost, condition (new vs. used), and maintenance needs** are key factors to consider. If you re replacing a failing motor in a critical system, investing in a **new or remanufactured unit from a trusted supplier** is justified. If budget is a concern, a **used motor from a reputable source with a warranty** could be a cost-effective alternative, provided it undergoes thorough inspection.

For **long-term reliability**, prioritize:

- **Purchasing from a verified dealer** (e.g., Eaton-authorized, industrial hydraulic specialists).

- **Ensuring proper installation and maintenance** (regular fluid checks, seal replacements, and alignment).

- **Verifying the motor s history** (if used) to confirm it hasn t been overworked or improperly stored.

### **Recommendation:**

- **Buy new or remanufactured** if this is a **mission-critical component** and budget allows.

- **Buy used with caution** only if you can **inspect it thoroughly** (test for leaks, check for wear, verify flow/pressure specs) or obtain a **warranty from the seller**.

- **Compare with alternatives** (e.g., Parker, Bosch Rexroth, or other Eaton models) if your application allows flexibility in specifications.

- **Consult an industrial hydraulic specialist** if unsure about compatibility or installation requirements.

Ultimately, this motor is a **solid choice for industrial use** when sourced responsibly, but always weigh the **cost, condition, and long-term maintenance** against your specific needs.

Details:

us.

part #: knui20 prices

  • $95.79-$189.48

specifications hydraulimoto:

  • brand: Bfo
  • mpn: Knui20
  • color: Balck
  • country of origin: China
  • displacement: 97 Cm3/r 5.9 In3/r
  • material: Steel
  • mounting: 4 Bolt Flance-1.75 In Pilot Dia
  • mounting type: Flange Mounted
  • oe/part number: 101-1003-009 101-1003
  • port type: 1/2 Nptf Dryseal Pipethread Ports
  • shaft: 1 Inch Straight With Woodruff Key
  • type: Hydraulic Motor

general hydraulimoto:

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

returns hydraulimoto:

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

shipping hydraulimoto:

  • transit: 4-7 Days
  • service: UPS Ground
  • class: Standard
  • carrier: UPS
  • type: Fixed
  • cost: $0.00

payments hydraulimoto:

  • other
  • wallet: Paypal
  • credit card: Diners-club

offer hydraulimoto:

  • started: February 19, 2026
  • sold: 0
  • best offers: True
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1

seller hydraulimoto:

  • rating: 99.2%
  • # reviews: 18251
  • city: Rowland height, California
country of origin: china, displacement: 97 cm3/r 5.9 in3/r, mounting: 4 bolt flance-1.75 in pilot dia, mounting type: flange mounted, oe/part number: 101-1003-009 101-1003, port type: 1/2 nptf dryseal pipethread ports, shaft: 1 inch straight with woodruff key, type: hydraulic motor,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic pneumatic, color: balck, material: steel, sku: 7637983443470881,
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