Gear Motor Design for Automatic Baby Cradle Kit

Automatic Baby Cradle Kit Automatic Baby Cradle Kit is a smart cradle motor system that can automatically rock the crib to help the baby fall…

Automatic Baby Cradle Kit

Automatic Baby Cradle Kit is a smart cradle motor system that can automatically rock the crib to help the baby fall asleep peacefully.

It usually consists of a Gear motor, a controller and a bracket, supports timing adjustment and different swing amplitudes. Currently, this product is very popular in the Indian and Vietnamese markets.

Gear Motor for Automatic Baby Cradle Kit

Rpm	Torque	Voltage	Current	Lifetime	Motor Type	Gear Material	Gear Ratio	Output Shaft
44rpm	4kgf.cm	12V/24V	0.5A	500 h	Brushed	Powder Metallurgy	1:90K	Customized

Baby Cardle Kit Motor information

How to design Gear Motor for Automatic Baby Cradle Kit

When designing a gear motor for an automatic baby cradle kit, we focus on 4 key requirements.

1. Torque and Rpm

The weight of a baby cradle does not exceed 15kg, so there is no particularly high requirement for the torque of the motor.

For the application of baby cradles, the motor needs to provide a lower speed.

Recommend Model

Motor Model	Voltage (V)	Current (A)	Input Power (W)	Torque (N.m)	Speed (rpm)	Output Power (W)	Efficiency (%)
GR-37125000-90K	12.0	0.457	5.482	0.484	37.34	1.893	34.5
GR-37127000-60K	12.0	0.705	8.460	0.322	90.43	3.051	36.1

2. Noise Control

Motor noise must be extremely low to avoid disturbing the baby’s sleep. To achieve this, we use:

Low-speed DC Brush motors to minimize operational noise
High-precision spur gearboxes to reduce gear transmission noise

Rated Article: How to reduce Noise in a DC/BLDC Motor System→

Rated Article: How to Reduce Noise in a Gearbox Motor System→

3. Cost Optimization

Since baby cradles are a price-sensitive market, using high-end motors may not be necessary. Our approach includes:

Spur gearbox + brushed DC motor: which is a more cost-effective solution

4. Motor Lifetime

The motor in a baby cradle frequently alternates between forward and reverse rotations. With one forward and one reverse motion counted as one cycle, our motor is designed to:

Last for over 500,000 operating cycles

Automatic Baby Cradle Kit Motor from SGMADA

According to different customer needs, SGMADA provide 2 different specifications of GR-37 series for Automatic cardle Kit. Including GR-37126800-60K and GR37-125000-90K