PAB Helical Gear Precision Planetary Gearbox

Features

PAB series is one of the most popular planetary gearboxes of FHTW. It has been developed specifically for delivering the maximum performance at high speeds. Its helical teeth provide homogeneous synchronism and quiet running noise. PAB planetary gearbox is with high precision(P0 and P1 backlash), and the backlash can be to 1 arcmin. PAB planetary reduction planet gear is supported by both ends of the full needle roller bearing, which enhances the torsion stiffness.Output shaft of PAB planetary gearbox reducer is supported by two taper rollers on both ends to achieve greater bearing capacity.

PAB inline precision planetary gearbox is a direct connection type with square body,shortening the positioning time of starting and stopping.It is with shaft output.The Self aligning input flange makes PAB planetary gearbox connect fast with any motor output shaft.

With the compact structure,PAB helical gear speed reducer is with lower backlash and high precision than other similar models,it is with long service time.FHTW helical gear precision gearbox can be dimension customized according to different types of motors.

PAB planetary gearbox reducer has a large range of speed ratio,it has single stage and double stage.

Single stage ratio:3,4,5,6,7,8,9,10 ;

Double stage:12,15,20,25,30,35,40,45,50,60,70,80,90,100.

As one of most popular helical precision planetary gearbox,PAB series have the below features

(1) Lowest backlash of 0-3 arcmin.

(2) High torque and high dynamic.

(3) High cost performance.

(4) Applicable for all servo motor and stepper motor.

(5) Improve the rigidity and increase the motor rotor inertia.

(6) Shorten the positioning time of starting and stopping

(7) Miniaturization of motor power. At the same time, improve the stability of inertia load and reduce the vibration.

(8) The surface of the gear box is treated with electroless Nickel, and the connection plate is treated with blue anode to improve the tolerance and corrosion resistance of the environment.

(9) The structure that planet carrier and output shaft is integrated guarantee the maximum torque stiffness and stability.

(10) Electroless Nickel treatment was adopted on the gearbox surface, blue anodizing treatment was employed to the connection plate to enhance the tolerance and corrosion resistance of environment.

(11) High efficiency of 95%

(12) Lift-time lubrication.

Application

FHTW PAB High Precision Planetary Gearboxes are widely used in different kinds of transmission fields,such as Belt Conveyer, Gantry Robot,CNC machines,pipe bending machine,aviation industry, spaceflight, ship, radar, submarine, food machinery, medical machinery, composite materials. Equipment, precision testing instruments, data communication system, robot, mechanical arm,cutting and welding equipment, laser system, textile machinery, printing and dyeing machinery, Packing machine, printing machinery, testing machines, stamping technology, plastic machinery, glass machinery, lifting machinery, metallurgical machinery, engineering machinery and University Scientific Research Institute,Dispenser Robot, Loader robot etc.

Model Selection

PAB series precision planetary gearbox can connect to any brand of servo motors and stepper motors.

PAB single stage reduction ratio:3, 4, 5, 6, 7, 8, 9, 10

PAB double stage reduction ratio:12,15,20,25,30,35,40,45,50,60,70,80,90,100

How to choose a correct PAB model?

(1)Check your motor drawing,offer the below dimensions:

φS:shaft diameter

LB:motor convex circle diameter

φLA:motor flange PCD

LS:shaft length

LE:motor convex circle thickness

φLZ:motor mounting hole size

Then compare these dimensions to our gearbox dimensions(refer to our catalogue)you can probably know the frame size of our gearbox.

(2)What’s the ratio or output speed you need?Check if the gearbox output torque＞motor torque*ratio

Ratio i=Input speed(RPM)/gearbox output speed(RPM)

Motor torque(N.m)=9550*motor power(KW)/motor speed(RPM)

(3)Make sure the precision(backlash)you need,then you can know which type of gearbox you need.

(4)If you don’t have the information above,please send us the servo motor dimension drawing for model selection or advise the specific servo motor model number,then we are pleasure to help you choose a suitable model.

Parameters

Technical parameters of PAB precision gearbox

Model No.	Unit	Stage	Ratio	PAB042	PAB060	PAB090	PAB115	PAB142	PAB180	PAB220
Rated Output Torque	Nm	1	3	19	56	148	280	520	1020	1550
			4	20	55	160	330	580	1280	2160
			5	21	58	159	330	580	1250	2100
			6	16	48	120	240	410	980	1350
			7	19	50	148	300	530	1030	1580
			8	13	45	130	230	450	880	1260
			9	12	40	100	220	410	880	1450
			10	15	46	125	260	475	950	1530
		2	12	18	52	155	300	530	1100	1750
			15	18	53	150	280	550	1050	1650
			16	20	53	158	320	580	1200	2050
			20	20	52	155	320	580	1200	2050
			25	19	52	158	320	580	1200	2000
			28	19	50	150	300	550	1100	1850
			30	18	49	145	390	500	1050	1600
			35	17	48	155	290	500	1020	1500
			40	18	48	150	290	530	1100	1350
			50	18	50	145	290	530	1000	1300
			70	16	50	140	280	490	1000	1200
			80	10	43	110	230	410	960	980
			100	10	43	120	260	450	950	1100
Max. Output Torque	Nm	1,2	3-100	3 Times of Normal Output Torque
Rated Input Speed	Rpm	1,2	3-100	4000	4000	4000	3500	3000	2000	2000
Max. Input Speed	Rpm	1,2	3-100	6000	6000	6000	5500	4500	4500	4000
Micro Backlash P0	Arcmin	1	3-10	/	/	≤1	≤1	≤1	≤1	≤1
Micro Backlash P0	Arcmin	2	12-100	/	/	/	≤3	≤3	≤3	≤3
Precision Backlash P1	Arcmin	1	3-10	≤3	≤3	≤3	≤3	≤3	≤3	≤3
Precision Backlash P1	Arcmin	2	12-100	≤5	≤5	≤5	≤5	≤5	≤5	≤5
Standard Backlash P2	Arcmin	1	3-10	≤7	≤7	≤7	≤7	≤7	≤7	≤7
Standard Backlash P2	Arcmin	2	12-100	≤9	≤9	≤9	≤9	≤9	≤9	≤9
Torsional Rigidity	Nm/arcmin	1,2	3-100	3	7	12	25	50	140	210
Max. Radial Force	N	1,2	3-100	780	1300	3200	6750	9400	14500	50000
Max. Axial Force	N	1,2	3-100	330	700	1580	3300	4700	7200	28000
Service Life	Hr	1,2	3-100	21000hrs
Efficiency	%	1	3-10	≥97%
Efficiency	%	2	12-100	≥94%
Weight	Kg	1	3-10	0.5	1.3	3.7	7.8	15	29	52
Weight	Kg	2	12-100	0.8	1.48	4.1	9.6	18.9	33	66
Operating Temperature	℃	1,2	3-100	（-15℃~+90℃）
Lubrication		1,2	3-100	Synthetic Grease
Protection Class		1,2	3-100	IP65
Mounting Position		1,2	3-100	Any Direction
Noise Level	dB(A)	1,2	3-100	≤63	≤63	≤63	≤65	≤65	≤70	≤70

Moment of Inertia

Model No.	Unit	Stage	Ratio	PAB042	PAB060	PAB090	PAB115	PAB142	PAB180	PAB220
Moment of Inertia	kg.cm²	1	3	0.03	0.16	0.61	3.25	9.21	28.98	69.61
			4	0.03	0.14	0.48	2.74	7.54	23.67	54.37
			5	0.03	0.13	0.47	2.71	7.42	23.29	53.27
			6	0.03	0.13	0.45	2.65	7.25	22.75	51.72
			7	0.03	0.13	0.45	2.62	7.14	22.48	50.97
			8	0.03	0.13	0.44	2.58	7.07	22.59	50.84
			9	0.03	0.13	0.44	2.57	7.04	22.53	50.63
			10	0.03	0.13	0.44	2.57	7.03	22.51	50.56
		2	12-40	0.03	0.03	0.13	0.47	2.71	7.42	23.29
		2	50-100	0.03	0.03	0.13	0.44	2.57	7.03	22.51

Dimensions

(1) Single stage(Ratio:3,4, 5, 6,7, 8,9,10)

Unit:mm

Size	PAB042-L1	PAB060-L1	PAB090-L1	PAB115-L1	PAB142-L1	PAB180-L1	PAB220-L1
D1	Φ13	Φ16	Φ22	Φ32	Φ40	Φ55	Φ75
D2	Φ35	Φ50	Φ80	Φ110	Φ130	Φ160	Φ180
D3	Φ8(≤11)	Φ14(≤14)	Φ19(≤24)	Φ24(≤32)	Φ35(≤42)	Φ38(≤50)	Φ55(≤55)
D4	Φ30(30-50)	Φ50(30-70)	Φ70(50-110)	Φ110(50-130)	Φ114.3(95-180)	Φ180(95-180)	Φ215(180-255)
D5	Φ50	Φ70	Φ100	Φ130	Φ165	Φ215	Φ250
D6	4-Φ3.4	4-Φ5.5	4-Φ6.6	4-Φ9	4-Φ11	4-Φ13	4-Φ17
D7	Φ46(22-70)	Φ70(45-90)	Φ90(70-145)	Φ145(70-145)	Φ200(90-215)	Φ200(90-300)	Φ235(200-300)
D8	(4-M3X8L)	(4-M5X10L)	(4-M6X12L)	(4-M8X25L)	(4-M12X30L)	(4-M12X30L)	(4-M12X30L)
D9	M4X0.7P	M5X0.8P	M8X1.25P	M12X1.75P	M16X2.0P	M20X2.5P	M20X2.5P
L1	19	28.5	36.5	51	79	82	105
L2	5.5	7	10	12	15	20	30
L3	4	6	8	10	12	15	20
L4	26	37	48	65	97	105	138
L5	(4)	(5)	(7)	(11)	(7)	(7)	(12.5)
L6	30	34	45	65	67.5	85	105
L7	(65.5)	(78)	(99)	(135)	(150)	(182)	(226)
L8	(91.5)	(115)	(147)	(200)	(247)	(287)	(365)
C1	□42	□60	□90	□115	□142	□180	□220
C2	(□42)	(□60)	(□90)	(□130)	(□142)	(□180)	(□220)
S1	2	2	3	5	5	5	7
S2	16	25	32	40	65	70	90
S3	15	18	24.5	35	43	59	79
B	5	5	6	10	12	16	20
K1	3	4	6	8	10	14	16
K2	Φ8	Φ11	Φ22	Φ28	Φ38	Φ50	Φ60
K3	9.2	12.7	25	31.3	42	53.8	64.4
K4	Φ13	Φ16	Φ32	Φ38	Φ48	Φ60	Φ72
K5	15	15	20	27	35	43	60
K6	18	18	24	32	40	50	65

Note 1:Inside of ()is the optional range of sizes,outside of ()is the standard sizes.
Note 2:The reducer output shaft size and length can be customized for customers.
Note 3:Input sizes can be subject to changed according to kinds of servo motor or stepper motor size.

(2) Double stage(Ratio: 12,15,16,20,25,28,30,35,40,50,70,80,100)

unit:mm

Size	PAB042-L2	PAB060-L2	PAB090-L2	PAB115-L2	PAB142-L2	PAB180-L2	PAB220-L2
D1	Φ13	Φ16	Φ22	Φ32	Φ40	Φ55	Φ75
D2	Φ35	Φ50	Φ80	Φ110	Φ130	Φ160	Φ180
D3	Φ8(≤11)	Φ14(≤14)	Φ19(≤24)	Φ24(≤32)	Φ35(≤42)	Φ38(≤50)	Φ55(≤55)
D4	Φ30(30-50)	Φ50(30-70)	Φ70(50-110)	Φ110(50-130)	Φ114.3(95-180)	Φ180(95-180)	Φ215(180-255)
D5	Φ50	Φ70	Φ100	Φ130	Φ165	Φ215	Φ250
D6	4-Φ3.4	4-Φ5.5	4-Φ6.6	4-Φ9	4-Φ11	4-Φ13	4-Φ17
D7	Φ46(22-70)	Φ70(45-90)	Φ90(70-145)	Φ145(70-145)	Φ200(90-215)	Φ200(90-300)	Φ235(200-300)
D8	(4-M3X8L)	(4-M5X10L)	(4-M6X12L)	(4-M8X25L)	(4-M12X30L)	(4-M12X30L)	(4-M12X30L)
D9	M4X0.7P	M5X0.8P	M8X1.25P	M12X1.75P	M16X2.0P	M20X2.5P	M20X2.5P
L1	19	28.5	36.5	51	79	82	105
L2	5.5	7	10	12	15	20	30
L3	4	6	8	10	12	15	20
L4	26	37	48	65	97	105	138
L5	(4)	(5)	(7)	(11)	(7)	(7)	(12.5)
L6	25	34	45	65	67.5	85	105
L7	(93.0)	(117)	(144)	(161)	(196)	(232)	(277)
L8	(114.0)	(154)	(192)	(226)	(293)	(337)	(415)
C1	□42	□60	□90	□115	□142	□180	□220
C2	(□42)	(□60)	(□90)	(□130)	(□142)	(□180)	(□220)
S1	2	2	3	5	5	5	7
S2	16	25	32	40	65	70	90
S3	15	18	24.5	35	43	59	79
B	5	5	6	10	12	16	20
K1	3	4	6	8	10	14	16
K2	Φ8	Φ11	Φ22	Φ28	Φ38	Φ50	Φ60
K3	9.2	12.7	25	31.3	42	53.8	64.4
K4	Φ13	Φ16	Φ32	Φ38	Φ48	Φ60	Φ72
K5	15	15	20	27	35	43	60
K6	18	18	24	32	40	50	65