JKM PLF90 Planetary Gearbox for BLDC--CHANGZHOU JKONGMOTOR CO., LTD.

JKM PLF90 Planetary Gearbox for BLDC

Model

Nature of the Manufacturer: Manufacturer

Product Category: Gearbox

Place of Origin: City, Province

1、The planetary wheel bearings adopt full-roller needle bearings without retainers, increasing the output torque and rigidity of the reducer.
2、The use of a cage-type planetary frame and an integrated output shaft with bearings supported at both ends ensures higher strength and accuracy.
3、The input shaft and motor are clamped separately and undergo dynamic balancing tests to ensure coaxiality and zero-backlash power transmission at high input speeds.
4、Synthetic lubricants are used, and the sealing design meets the IP65 protection rating, ensuring that the lubricating oil does not leak and requires no maintenance.
5、ANSYS technology is utilized to perform finite element analysis on the strength of the gears. Additionally, the helical tooth surface is adjusted for tooth shape and lead in order to reduce impact and noise during gear engagement, thereby increasing the lifespan of the gear system.
6、High-quality low carbon alloy steel is chosen as the gear material. It undergoes carburizing and quenching to achieve a hardness of approximately HRC60. The gears are processed using high-precision machine tools to ensure accuracy below ISO5 level, thus obtaining optimal wear resistance and impact resistance.
7、The gear ring and output flange are designed as an integrated unit. High-quality steel is used and it is formed through hot forging, resulting in a high material density. The integrated design guarantees that all geometric dimensions are formed in one step, providing higher accuracy and strength compared to other structures such as embedded and sandwich designs.

PLF90
Stage	Ⅰ Stage		Ⅱ Stage		Ⅲ Stage
Ratio	3、4、5、7、10		12、15、16、20、25、28、35、40、50、70、100		64、80、100、120、125、140、175、200、250、280、350、400、500、700、1000
	A	B	A	B	A	B
Length (mm)	90	155	115	180	140	205
Rated Speed (rpm)	3500		3500		3500
Max Speed (rpm)	6000		6000		6000
Max. radial force (N)	550		550		550
Max. axial force (N)	500		500		500
No-load Torque (N.m)	0.8		0.4		0.4
Efficiency (%)	96		94		90
Backlash (arcmin)	≤10		≤15		≤18
Noise (dB)	≤62		≤62		≤62
Weight (kg)	3		3.6		4.2
Working Lifetime (h)	＞20000 （Continuous operating life halved）
Torsional rigidity (Nm/arcmin)	7.5
Lubrication Method	Long-term
Rotation Direction	Input/Output Syntropy
Protection Class	IP65
Mounting Position	Arbitrarily

Gear Ratio（i）	Ⅰ Stage					Ⅱ Stage
Gear Ratio（i）	3	4	5	7	10	12	15	16	20	25	28	35	40	50	70	100
Rated Output Torque (Nm）	55	90	95	64	40	60	60	95	95	100	95	100	95	100	70	45
Max Output Torque (Nm）	110	180	190	128	80	120	120	190	190	200	190	200	190	200	140	90
Rotor Inertia（kgcm² )	0.77	0.52	0.45	0.4	0.39	0.67	0.67	0.5	0.44	0.44	0.39	0.44	0.39	0.42	0.44	0.44
Ⅲ Stage
Gear Ratio（i）	64	80	100	120	125	140	175	200	250	280	350	400	500	700	1000
Rated Output Torque (Nm）	100	100	100	65	105	100	105	100	105	100	105	100	105	75	50
Max Output Torque (Nm）	200	200	200	130	210	200	210	200	210	200	210	200	210	150	100
Rotor Inertia（kgcm² )	0.39	0.39	0.39	0.44	0.39	0.39	0.39	0.39	0.39	0.39	0.39	0.39	0.39	0.39	0.39