# DDSM115 Direct Drive Servo Motor, Low Speed & High Torque, Low Noise, All-In-One Design, Hub Motor

**Type:** Product page · **SKU:** WS-23489 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/ddsm115-direct-drive-servo-motor-low-speed-amp-high-torque-low-noise-all-in-one-design-hub-motor.html ([markdown](https://core-electronics.com.au/ddsm115-direct-drive-servo-motor-low-speed-amp-high-torque-low-noise-all-in-one-design-hub-motor.html.md))

DDSM115 Direct Drive Servo Motor, Low Speed & High Torque, Low Noise, All-In-One Design, Hub Motor...

## Pricing

- **Price:** $124.95 (inc GST) — $113.59 AUD, exc GST
- **Quantity discounts:** 5+ $109.05 (exc GST) · 10+ $105.64 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 31.

## Description

This all in one motor and wheel system stands out for its silent operation and precise performance. Its design allows for instant responses and the convenience of a compact, integrated motor and driver. RS485 communication is supported, making it easy to access vital motor feedback like position, speed, current, and error codes. With features like Hall position detection and over-current protection, it’s both safe and reliable. It also includes an electric brake and operates with near-perfect efficiency due to the absence of mechanical friction.

## Specifications

 | **No-load speed** | 200±10rpm | **Operating temperature** | -20~45° |
|---|---|---|---|
| **No-load current** | ≤0.25A | **Total weight** | 765±15g |
| **Rated speed** | 115rpm | **Encoder resolution** | 4096 |
| **Rated torque** | 0.96Nm | **Rated current** | 1.25±0.05A |
| **Degree of protection** | IP54 | **Noise level** | ≤50dB |
| **Locked-rotor torque** | 2.0Nm | **Mechanical time constant** | 30ms |
| **Locked-rotor current** | ≤2.7A | **Rotor inertia** | 1.67kg-m² |
| **Rated voltage** | 18V DC (5S LiPo) | **Phase resistive elements** | 2.15O |
| **Torque constant** | 0.75Nm/A | **Phase inductance** | 3.6mH |
| **Speed constant** | 11.1rpm/V | **Number of pole pairs** | 10 |

## Dimensions

![](https://core-electronics.com.au/attachments/localcontent/DDSM115-details-size_158256344b0.jpg)

## Resources

- Wiki
 
## Shipping List

- 1 x DDSM115

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE09297-1.jpg)