Orbray BMS Brushless Motor Series Overview

This document provides detailed technical specifications and ordering information for the Orbray BMS16-20XX brushless motor series combined with planetary gearheads (SPG16 series).

1. General Specifications

• Gear Ratios: Available reduction ratios include 3.60:1, 4.71:1, 12.96:1, 22.22:1, 61.10:1, and 104.77:1.
• Number of Stages: Gearheads have 1 to 3 stages depending on the reduction ratio.
• Efficiency: Efficiency varies by gear ratio, ranging from 22% to 85%.
• Direction of Rotation: Consistent across all models.
• Dimensions: Motor plus gearhead length ranges from 35.3 mm to 43.7 mm depending on gear ratio and configuration.

2. Torque and Speed Parameters

• Maximum Allowable Torque: Continuous torque up to 200 mNm; intermittent torque up to 400 mNm.
• No Load Speed: Varies by model and gear ratio, from approximately 216 rpm to 6283 rpm.
• No Load Current: Ranges from 139 mA to 492 mA depending on model and gear ratio.
• Stall Torque: From 44 mNm up to 998 mNm depending on gear ratio and motor voltage.
• Stall Current: Varies by motor voltage rating, with values such as 5449 mA for 7.4 V models, 3459 mA for 12 V models, and 1882 mA for 24 V models.

3. Motor Variants and Voltage Ratings

• BMS16-2001P: Rated voltage 7.4 V.
• BMS16-2004P: Rated voltage 12 V.
• BMS16-2013P: Rated voltage 24 V.

4. Ordering Information

Model numbers combine motor type, gearhead type, and gear ratio. Examples:

• BMS16-2004 motor with SPG16 gearhead at 3.6:1 ratio is ordered as BMS16-2004P3.6.
• BMS16-2013 motor with SPG16 gearhead at 105:1 ratio is ordered as BMS16-2013P105.

5. Additional Notes

• Encoder options (ETD16 series) are available but may require additional processing.
• Specifications are subject to change without notice.

6. Manufacturer Contact Information

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