Gear Speed Reducer for Winch Planetary Gearbox



NB405W3 NB407W3 NB410W3 NB413W3
Superior Performance
The replacement of the NB400W Serieswinch drive planetary gearbox can fit into a winch drum and function as a gear speed reducer for the winch. The performance has been rated in conformity with FEM M5 standards with an output maximum speed of 25 rpm, which is the world standard for self-propelled and onboard cranes.
The replacement of the NB400W Series gearboxes are the ideal solution for all lifting applications: our planetary gears are specially designed for use as winch drives inside cable drums, available with hydraulic and electric motor adaptor. They feature two close-mounted flanges, one of which is attached to the winch frame and the other of which is fixed to the cable drum, the drive housing, therefore, acts as the main drum mounting.
Key Features
1. Output torque range: 1000-280000 N.m
2. Gear ratios: i=5.3-400
3. Support: the gearbox has rotating housing flanges to fit a winch
4. Applicable motors: axial piston hydraulic motors, hydraulic orbit motors, or others
5. Hydraulic motor options: pressure relief valve, the over-center valve on request
6. Bearing: robust bearing system absorbing the forces exerted by the ring gear
7. Brake: hydraulic released parking brake on request
8. Performance figures refer to FEM standards, class M5 (T5-L2) for output max. speeds of 25 rpm.
9. Technical data and installation dimension of NB400W Series gearbox are the same as those of Rexroth GFT…W Series and Bonfiglioli 800 Series, so these three can be used interchangeably.
edited by CX
| Type | Max. torque N.m | Range of ratios (i) | Max. Input speed (rpm) | Braking torque(N.m) |
| NB400W1 | 870 | 6.09 | 1000 | 130 |
| NB401W1 | 1300 | 6.2 | 1000 | 270 |
| NB402W2 | 4000 | 12.4-37.1 | 3500 | - |
| NB403W2 | 4000 | 15.4-40 | 3500 | 270 |
| NB405W | 7000 | 20-80 | 3500 | 270 |
| NB405.4W | 5500 | 26-57 | 3500 | 280 |
| NB406AW | 12500 | 23-220 | 3500 | 430 |
| NB406W | 13000 | 28-140 | 3500 | 430 |
| NB406BW3 | 17500 | 63-136 | 3500 | 430 |
| NB407AW | 18000 | 38-136 | 3500 | 430-530 |
| NB407W3 | 26000 | 63-136 | 3500 | 530 |
| NB410W3 | 37500 | 62-177 | 3500 | 530 |
| NB413W3 | 42500 | 86-172 | 3500 | 610 |
| NB414W3 | 67000 | 76-186 | 3500 | 1200 |
| NB415W3 | 100000 | 81-215 | 3000 | 1200 |
| NB416W3 | 140000 | 87-255 | 3000 | 2000 |
| NB417W3 | 200000 | 123-365 | 3000 | 2000 |
| NB419W3 | 275000 | 161-306 | 2500 | 3000 |
Specific Dimensions and Technical Parameters Inquiry
NB4 & NB6 Series
Alternative Brand/Model Inquiry
Trasmital Bonfiglioli Brevini Riduttori Bosch Rexroth Comer Industries Reggiana Riduttori Rossi Zollern
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port





