CF-GH Series Harmonic Drive (Strain Wave Gear Reducer)

CF-GH Series Harmonic Drive (Strain Wave Gear Reducer)

The CF-GH series harmonic drive reducer is an advanced precision gearbox widely used in various industries for high-precision motion control applications. Harmonic drive technology, also known as strain wave gearing, is a compact and efficient gear mechanism that offers superior torque transmission capabilities with zero backlash. The CF-GH series builds upon this technology, incorporating several design enhancements and improvements to deliver even better performance.

One of the key features of the CF-GH series harmonic drive reducer is its high torque density. It can transmit a large amount of torque relative to its compact size, making it ideal for applications where space is limited. This high torque density allows for more flexibility in system design and integration. The CF-GH series also offers excellent positional accuracy. It provides precise motion control thanks to its minimal backlash and high torsional stiffness. This accuracy is crucial in applications that require precise positioning, such as robotics, machine tools, and automation systems.

Furthermore, the CF-GH series harmonic drive reducer offers a long service life with low maintenance requirements. Its rugged construction and high-quality materials ensure durability and reliability even in demanding environments. This reduces downtime and increases productivity, making it a cost-effective solution for many industries. The CF-GH series harmonic drive reducer is available in various sizes and configurations to accommodate different torque and speed requirements. It can be customized to meet specific application needs, including different mounting options, input and output shaft configurations, and gear ratios.

Components of a Harmonic Drive:

Harmonic transmission device is mainly composed of three basic parts, namely wave generator, flexible wheel and rigid wheel.

1. Wave generator: composed of a flexible bearing and an elliptical cam, the wave generator is usually installed at the input end of the speed reducer, the inner ring of the flexible bearing is fixed on the cam, and the outer ring realizes the elastic transformation into an elliptical shape by means of a ball.

2. Flexible wheel: a flexible thin-walled elastomer part with a circle of outer teeth, usually installed at the output of the gearhead.

3. Rigid wheel: a rigid circular part with a circle of inner teeth, generally 2 teeth more than the flexible wheel, usually fixed on the reducer body.

CF-GH Series Harmonic Drive Reducer Features:

1. Simple one-push mounting to any manufacturer's HoSuite motors for high-precision actuators.

2. Zero backlash

3. High reduction ratio: 1/50~1/160

4. High positioning accuracy (Repeatable positioning 4~10arcsec)

5. Large load capacity by adopting the integrated structure of cross and roller bearings.

6. High torque capacity

CF-GH Series Harmonic Drive Reducer Naming Rules:

1 Model name	2 model number	3 reduction ratio					type	Mounting type
CF Standard	14	050	080	100	-	-	GH Gearbox type	See drawings for details
	20	050	080	100	120	-
	32	050	080	100	120	160
	45	050	080	100	120	160

CF-GH Series Harmonic Drive Reducer Specifications:

Model	Reduction ratio	Input 2000r/min Rated torque *1	Input 3000r/min Rated torque *2	Average load torque Allowable Maximum Value of Average Load Torque *3	At start-stop Peak torque *4	Instantaneous maximum torque *5	Maximum Input speed *6	Reducer body weight*7
		Nm	Nm	Nm	Nm	Nm	r/min	Shaft output kg	Flange output kg
14	50	5.4	4.7	6.9	18	35	8500	0.62	0.5
	80	7.8	6.8	11	23	47
	100	7.8	6.8	11	28	54
20	so	25	22	34	56	98	6500	1.8	1.4
	80	34	30	47	74	127
	100	40	35	49	82	147
	120	40	35	49	87	147
	160	40	35	49	92	147
32	50	76	66	108	216	382	4800	4.6	3.2
	80	118	103	167	304	568
	100	137	120	216	333	647
	120	137	120	216	353	686
	160	137	120	216	372	686
45	50	176	154	265	500	950	3800	13	10
	80	313	273	390	706	1270
	100	353	308	500	755	1570
	120	402	351	620	823	1760
	160	402	351	630	882	1910

*1 The output torque is set at a value of L10 = 7,000 hours of service life at an input speed of 2,000 r/min for an ordinary same-service motor. Use this as an approximate standard for normal operation.
*2 The output torque is set at the value of L10 = 7000 hours of service life when the input speed is kept at 3000r/min for an ordinary homogenous motor. Use this as an approximate standard for normal operation.
*3 Maximum allowable average load torque calculated from the load torque mode. Note that exceeding this value may reduce the service life and durability of the product.
*4 Maximum allowable torque during start-stop in the operating cycle.
*5 Maximum allowable shock torque during an emergency stop and shock torque from external sources. Be sure to use the product within this torque range. In addition, during the model selection process, calculate the allowable frequency and confirm that it meets the operating conditions.
*6 Maximum allowable input speed under non-operating conditions. The speed may be affected by the operating environment and operating conditions, but keep the input speed below 3000r/min for continuous operation.
*7 Indicates the weight of the gearhead alone. Please refer to the dimension table for values, including input shaft coupling and motor flange.

CF-GH Series Harmonic Drive Reducer Dimensions:

CF14 Harmonic Drive Reducer Dimension:

CF14 Harmonic Drive Reducer Size Chart:

Mounting type	Dimension
	A	B	C	D	E
A08F01	Φ8+0.02/+0.005	Φ30+0.03/+0.01	Φ46	M4xl0	M3
A08F02	Φ8+0.02/+0.005	Φ30+0.03/+0.01	Φ45	M3x8	M3

CF20 Harmonic Drive Reducer Dimension:

CF20 Harmonic Drive Reducer Size Chart:

Mounting type	Dimension
	A	B	C	D	E
A11F01	Φ1+0.02/+0.005	Φ50+0.03/+0.01	Φ70	M4x10	M4
A14F01	Φ14+0.026/+0.005	Φ50+0.03/+0.01	Φ70	M4x10	M4

CF32 Harmonic Drive Reducer Dimension:

CF32 Harmonic Drive Reducer Size Chart:

Mounting type	Dimension
	A	B	C	D	E
A14F01	Φ14+0.026/+0.008	Φ50+0.03/+0.01	Φ70	M4x10	M4
A19F01	Φ19+0.03/+0.008	Φ70+0.035/+0.01	Φ90	M5x12	M5

CF45 Harmonic Drive Reducer Dimension:

CF45 Harmonic Drive Reducer Size Chart:

Mounting type	Dimension
	A	B	C	D	E
A19F01	Φ19+0.03/+0.008	Φ70+0.035/+0.01	Φ90	M5x12	M5
A19F02	Φ19+0.03/+0.008	Φ110+0.05/+0.02	Φ145	M8x20	M5
A22F01	Φ22+0.03/+0.008	Φ110+0.05/+0.02	Φ145	M8x20	M6
A22F02	Φ22+0.03/+0.008	Φ110+0.05/+0.02	Φ130	M8x20	M6
A24F01	Φ24+0.03/+0.008	Φ110+0.05/+0.02	Φ145	M8x20	M6

CF-GH Series Harmonic Drive Reducer Installation Methods:

* Evenly grease the wave generator bearings and the inner wall of the flex wheel, and fill the cavity of the input fixing flange with grease.
*Install the motor/input shaft into the input flange (pay attention to the sealing), lock the screws and lock them tightly.
*Install the wave generator into the motor shaft/input shaft (pay attention to the direction of the wave generator), and take the screws and flat gaskets to fix it.
*Install the reducer in the direction shown in the drawing. When installing: apply slight force to the reducer in the direction of installation and rotate it back and forth so that it can be installed smoothly. Take the screws and lock them into the mounting holes and pre-tighten them with a torque of 0.5Nm.
*Set the motor speed to <100 rpm, start the motor, temporarily lock the gearhead mounting screws in diagonal order at 1/2 the specified torque, and then lock them at the specified torque.

CF-GH Series Harmonic Drive Reducer Applications:

The CF-GH series harmonic drive reducer finds applications in a wide range of industries that require high-precision motion control. Some of the common applications include:

(1) Robotics: The CF-GH series is extensively used in robotic systems, including industrial robots, collaborative robots (cobots), and humanoid robots. Its high torque density and precise positioning capabilities enable smooth and accurate movements, allowing robots to perform tasks with precision and efficiency.

(2) Machine Tools: Precision is crucial in machine tool applications such as CNC milling machines, lathes, and grinding machines. The CF-GH series provides the necessary accuracy and repeatability required for precise machining operations, resulting in high-quality finished products.

(3) Automation Systems: The CF-GH series is employed in various automation systems, including pick-and-place machines, packaging equipment, and assembly lines. Its compact size and high torsional stiffness enable precise motion control, improving the overall efficiency and productivity of the system.

(4) Semiconductor Manufacturing: The semiconductor industry relies on highly precise equipment for wafer handling, lithography, and inspection processes. The CF-GH series is used in semiconductor manufacturing equipment to ensure accurate positioning and alignment, contributing to the production of high-quality chips.

(5) Medical Devices: Many medical devices, such as surgical robots, imaging systems, and laboratory automation equipment, require precise and reliable motion control. The CF-GH series is utilized in these applications to achieve the necessary accuracy and repeatability, enabling safe and effective medical procedures.

(6) Aerospace and Defense: The aerospace and defense industries demand precision motion control solutions for various applications, including satellite systems, aircraft control surfaces, and missile guidance systems. The CF-GH series is used in these critical applications due to its high torque capacity, compact design, and reliability.

Why Choose  HZPT's Harmonic Drive Reducer?

HZPT Technology Co., Ltd. is a gearbox manufacturer with a core supply system, and has more than 8,000 cooperating customers. Since its establishment, HZPT has joined hands with partners in the industry to build factories all over the country, introduced advanced production equipment and precision monitoring equipment, and continuously innovated, researched and developed, and perfected its products. HZPT provides domestic and foreign customers with a comprehensive range of gearmotors and a diversified range of gearboxes to meet the different needs of customers in various fields.

Our main products include: planetary gearboxes, RV gearboxes, hollow rotary platforms, miniature gearboxes and matching speed controllers, miniature gearmotors, worm gearboxes, DC brushless gearmotors, three-phase asynchronous motors, vertical and horizontal gearmotors, torque reducers, cross steering gearboxes, harmonic reducers, and other series of gearmotors and their matching products. Many of them are of modularized design. Adopting new equipment and new technology, the products have better internal quality, smaller volume, lighter weight and more beautiful appearance. The products are widely used in: lithium equipment, laser equipment, engineering equipment, CNC machine tools, machinery production, non-standard automation, automobile manufacturing, aviation field, printing machinery, paper making, robotics, packaging machinery, filling, solar energy equipment, medical and pharmaceutical, testing instruments and many other industries.