PRF090 Series Precision Planetary Gearbox

Product Overview

PRF090 planetary gearbox with straight teeth offers a versatile solution for diverse applications, featuring an IP65 degree of gearbox protection, making it resistant to both dust and low-pressure water jets. Available in one, two, and three-stage configurations, this PRF090 gearbox provides a range of gear ratios, such as 3, 4, 5, 7, and 10 for one stage, 12, 15, 16, 20, 25, 28, 35, 40, 50, and 70 for two stages, and 100, 125, 140, 175, 200, and 250 for three stages. With minimal backlash specifications of ≤ 10 arcmin for one stage, ≤ 18 arcmin for two stages, and ≤ 25 arcmin for three stages, this PRF090 planetary gearbox ensures precise motion control. Additionally, the gearbox exhibits high efficiency, boasting values of ≥ 97% for one stage, ≥ 94% for two stages, and ≥ 90% for three stages, making it an efficient and reliable choice for applications requiring accurate and controlled rotational movements in challenging environmental conditions.

 

PRF Naming Rule (For example: PRF-090N-010-20-19-1)

Performance Data

Technical Parameter		1 stage					2 stage										3 stage
Ratio		3	4	5	7	10	12	15	16	20	25	28	35	40	50	70	100	125	140	175	200	250
Nominal Output Torque T2N	Nm	33	46	48	49	46	42	46	44	44	46	44	46	44	46	47	42	44	42	44	42	44
Emergency Stop Torque T2NOT	Nm	3 times of Nominal Output Torque
Nominal input Speed n1N	rpm	3000
Max.Input Speed n1B	rpm	6000
Standard Backlash P2	arcmin	≤10					≤18										≤25
Torsional Rigidity	Nm/arcmin	8
Max.Bending moment F2rB	N	1510
Max.Axial Load F2aB	N	755
Service Life	hr	20000
Efficiency η	%	≥97%					≥94%										≥90%
0perating Temp	℃	-10℃~90℃
Lubrication		Synthetic lubrication oils
Degree of Gearbox Protection		IP65
Mounting Position		all directions
Noise Level(n=3000rpm, No Load,50cm )	dB(A)	65
Mass Moments of Inertia J1	kg.cm2	0.18	0.17	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16	0.16

 

Mechanical Dimension

Matched Motor Size

PRF090 Series	Stage	Ratio	Diameter of output shaft	Diameter of input shaft	Diameter x length of motor shaft/Diameter and height of pilot on motor/QTYs-diameter-spacing of mounting holes
	One Stage	3/4/5/7/10	20	19	Φ19×30/Φ70×3/4-Φ5.5-Φ90
					Φ19×30/Φ70×3/4-Φ6.5-Φ90
	Two Stage	12/15/16/20/25/28/35/40/50/70	20	19	Φ19×30/Φ70×3/4-Φ5.5-Φ90
					Φ19×30/Φ70×3/4-Φ6.5-Φ90
	Three Stage	100/125/140/175/200/250	20	19	Φ19×30/Φ70×3/4-Φ5.5-Φ90
					Φ19×30/Φ70×3/4-Φ6.5-Φ90

 

FAQ

Q: How precise are your planetary gearboxes?

A: Our planetary gearboxes achieve high precision levels of up to 1 arcmin, thanks to advanced pulling and mounting equipment used in the manufacturing process. This ensures accurate and reliable performance, meeting the stringent requirements of various applications.

 

Q: How do you ensure quality control?

A: Quality control is paramount to us, and we enforce stringent measures to maintain consistent product quality. Throughout the entire production process, we conduct meticulous testing and inspections to verify each motor's performance and reliability. This rigorous quality control ensures that only high-quality products reach our esteemed customers.

 

Q: What about the difference between an economy planetary gearbox and a precision planetary gearbox

A: Economy planetary gearboxes are cost-effective, utilizing standard components and materials with slightly higher backlash and lower torque capacity. In contrast, precision planetary gearboxes use higher-precision components and advanced manufacturing techniques, providing tighter tolerances, lower backlash, higher torque capacity, and improved efficiency. Precision versions are ideal for applications demanding accuracy and performance, while economy gearboxes suit less critical applications with budget considerations.

 

Q: How do you ensure the planetary gearbox remains undamaged during transportation?

A: To safeguard the products during transportation, we use shock-absorbing foam for secure packaging. Each planetary gearbox is individually enclosed in a pocket to prevent potential damage caused by vibrations or impacts during transit.

 

Q: What is the best way to reach your factory?

A: Our factory is conveniently located near Shanghai Hongqiao Airport, and we can arrange to pick you up from the airport for your convenience.

 

Q: What distinguishes your company from others?

A: SIT boasts a robust technical team, advanced production techniques, comprehensive testing facilities, and a well-structured management system, all of which collectively ensure a dependable assurance of product quality.

 

Q: What is the quality of your after-sales service like?

A: Our motors typically come with a 12-month warranty. In the event of quality issues, we promptly arrange international express shipping to ensure swift delivery of replacement parts.

 

Q: Is it possible for us to tour your factory prior to confirming our order?

A: Certainly, we would be delighted to arrange a factory visit for you. This not only allows you to familiarize yourself with our operations but also helps establish a solid foundation for our business relationship.

 

Q: Could you describe the packaging used for your gearbox?

A: Our gearboxs are securely packaged in shock-absorbing foam. Each gearbox is placed in an individual pocket within the foam to prevent any potential damage from contact with other motors and to withstand the rigours of transportation, including intense vibrations.

 

Q: Are discounts available for large orders?

A: Yes, we offer discounts for large orders, and the specific discount rates also vary depending on the model.  Please get in touch with our sales team for more details.

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