Product Overview

The document presents technical specifications and mechanical data for the Orbray DC Coreless Motor Series model C4S10-1307. This motor features precious metal commutation and a sintered sleeve bearing, designed for high performance in compact applications.

Specifications

• Nominal Voltage: 4.7 V
• No Load Speed: 24,000 rpm
• No Load Current: 28 mA
• Stall Torque: 1.66 mNm
• Stall Current: 657 mA
• Output Power: 0.7 W
• Maximum Efficiency: 62.9%
• Terminal Resistance: 7.2 Ω
• Rated Torque: 0.28 mNm
• Rated Speed: 13,500 rpm
• Rated Current: 136 mA
• Friction Torque: 0.07 mNm
• Back-EMF Constant: 0.276 mV/rpm
• Torque Constant: 2.64 mNm/A
• Slope of N-T Curve: 9,798 rpm/mNm
• Mechanical Time Constant: 4.9 ms
• Rotor Inertia: 0.06 g·cm²
• Maximum Torque: 0.55 mNm

Mechanical Data

• Shaft Radial Play: 0.05 mm
• Shaft Axial Play: 0.03 to 0.2 mm
• Maximum Shaft Radial Load: 0.5 N (applied at 5 mm from flange)
• Maximum Shaft Axial Load: 0.15 N
• Maximum Shaft Axial Load at Standstill: 7.8 N
• Bearing Type: Sintered sleeve bearing

Performance Characteristics

The motor exhibits a linear relationship between torque and speed, with detailed curves provided for current and torque performance. The maximum efficiency is achieved at a specific operating point, balancing speed and torque output.

Environmental and Development Notes

This product is currently under development, and specifications are subject to change without prior notice. Customers are advised to contact Orbray Co., Ltd. for the latest details and inquiries.

Manufacturer Information

Company: Orbray Co., Ltd.
Address: 3-8-22 Shinden, Adachi-ku, Tokyo 123-8511, Japan
Telephone: +81-3-5390-7620
Website: https://orbray.com/en/
Email: [email protected]

Summary of Critical Parameters

• Voltage and current ratings ensure compatibility with low-voltage applications.
• High no-load speed (24,000 rpm) suitable for precision and high-speed requirements.
• Low friction torque and rotor inertia contribute to efficient and responsive motor behavior.
• Mechanical tolerances and load limits define safe operational boundaries to prevent damage.
• Use of precious metal commutation and sintered sleeve bearings enhances durability and performance.