Gear Speed Reducer for Tracked Vehicle Planetary Gearbox

Superior PerformanceThe replacement of NBPG NB400T Series track drives planetary gearbox is a specialized gear speed reducer for tracked vehicles and earth-moving machines. The reduction gearbox has a heavy-duty casing, a short overall length, and great radial and axial load capacity.Our gearboxes are provided with an integral multi-disc parking brake and have been designed for the direct mounting of hydraulic plug-in motors. The careful selection of the materials and design allows our gear reducers to be used in even the most severe environments. The replacement of NB400T Series gearboxes is the perfect transmission solution for crawler undercarriages, drilling, crushing, screening, and piling machines.Key Features1. Output torque range: 1000-450000N.m2. Gear ratios: i=5.3-5003. Support: the gearbox has rotating housing flanges to fit tracks4. Applicable motors: axial piston hydraulic motors, hydraulic orbit motors, or others5. Hydraulic motor options: pressure relief valve, over-center valve6. Bearing: robust bearing system absorbing the forces exerted by the ring gear7. Brake: hydraulic released parking brake8. High torque and load capacities: to carry equipment over the roughest and steepest terrain.9. Designed to allow mounting of plug-in motors.10. Integral multi-disc parking brakes, while still keeping the drive compact.11. Steel structure.12. Easy maintenance: filling and draining openings are reasonably located for easy reach.13. Front mechanical seal designed specifically for the earth-moving machines.14. Technical data and installation dimension of NB400T Series gearbox are the same as those of Rexroth GFT…T Series and Replacement of Bonfiglioli 700C Series, so these three can be used interchangeably.

Type	Max. torque N.m	Range of ratios (i)	Max. Input speed (rpm)	Braking torque (N.m)
NB400T1	1300	6.09	1000	130
NB401T1	2000	6.2	1000	270
NB402T2	5000	12.4-37.1	3500	-
NB403T2	7000	15.4-40	3500	270
NB405T	10000	20-80	3500	270
NB405.4T	11000	26-57	3500	280
NB406AT	17000	23-220	3500	430
NB406T	18000	28-140	3500	430
NB406BT3	24000	63-136	3500	430
NB407AT	26000	38-136	3500	430-530
NB407T3	36000	63-136	3500	530
NB410T3	50000	62-177	3500	530
NB413T3	60000	86-172	3500	610
NB414T3	80000	76-186	3500	1200
NB415T3	110000	81-215	3000	1200
NB416T3	160000	87-255	3000	2000
NB417T3	220000	123-365	3000	2000
NB418T3	270000	166-364	3000	2000
NB419T3	330000	161-306	2500	3000
NB420T4	450000	296-421	2500	1700

Product Identification Scheme

1	2	3	4	5	6	7	8
NB	413	T	3	139	WO	A2FE63	A

1. NB: Ningbo Planetary Gearbox Factory2. 413: Gearbox size, 400, 401, 402…417, 602, 603…6153. T: Series, T…Track drive, W…Winch drive, L…Wheel drive4. 3: Number of stages, 1…single stage, 2…double stage, 3…triple stage, 4…four stage5. 139: Ratio6. WO: With or without brake, WO…without brake, no symbol…with brake7. A2FE63: Motor type8. A: Motor shaft mark, A…A shaft motor, Z…Z shaft motorSpecific Dimensions and Technical Parameters InquiryNB4 & NB6 SeriesAlternative Brand/Model InquiryTrasmital Replacement of Bonfiglioli Replacement of Brevini Riduttori Replacement of Bosch Rexroth Replacement of Comer Industries Replacement of Reggiana Riduttori Replacement of Rossi Replacement of Zollern