JKM PLF80 Planetary Gearbox for BLDC--CHANGZHOU JKONGMOTOR CO., LTD.

JKM PLF80 Planetary Gearbox for BLDC

Model

Nature of the Manufacturer: Manufacturer

Product Category: Gearbox

Place of Origin: City, Province

1、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.
2、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.
3、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.
4、The planetary wheel bearings adopt full-roller needle bearings without retainers, increasing the output torque and rigidity of the reducer.
5、The use of a cage-type planetary frame and an integrated output shaft with bearings supported at both ends ensures higher strength and accuracy.
6、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.
7、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.

PLF80
Stage	Ⅰ Stage	Ⅱ Stage
Ratio	3、4、5、7、10	12、15、16、20、25、28、35、40、50、70、100
	A	A
Length (mm)	141.5	166.5
Rated Speed (rpm)	3500	3500
Max Speed (rpm)	6000	6000
Max. radial force (N)	550	550
Max. axial force (N)	500	500
No-load Torque (N.m)	0.8	0.4
Efficiency (%)	96	94
Backlash (arcmin)	≤10	≤15
Noise (dB)	≤62	≤62
Weight (kg)	3	3.6
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