Gearbox (Planetary Slewing Drive)

Gearbox  (Planetary Slewing Drive)
Gearbox  (Planetary Slewing Drive)
Gearbox  (Planetary Slewing Drive)
Gearbox  (Planetary Slewing Drive)
Gearbox  (Planetary Slewing Drive)
Gearbox  (Planetary Slewing Drive)
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Superior Performance
The NB700S slewing drive gearbox is specifically designed for pinion and slewing ring drives. Successfully employed on tower cranes, shipboard and harbor cranes, wind generators and steering drives on ship propulsion systems, the planetary gear unit can be used in almost all applications where accurate positioning is required. These planetary slewing drives are suitable for the most demanding duties in any environment.

The design of thegearbox optimizes torque performance and radial load capacity in order to perfectly mesh the pinion and ring gear. For accurate adjustment, some versions have eccentric mounting between the pinion axis and the casing axis. Their wide range of ratios enables the selection of motor size and type which best suits the customer's requirements and application.

Key Features
1. Output torque range: 1000-180000 Nm
2. Gear ratios: i=3.3-3000
3. Support: slew support (with flange mounted)
4. Output shaft: splined or with integral pinion; output shafts supported by heavy duty capacity bearings
5. Applicable motors: axial piston hydraulic motors, hydraulic orbit motors, IEC electric motors
6. Hydraulic motor options: pressure relief valve, overcenter valve, parking brake
7. Electric brake: DC and AC type
8. Hydraulic brake: hydraulically released parking brake

  • NB705L2
  • NB706L3 Pitch Drive
  • NB709AL
Technical data and installation dimension of NB700L Series gearbox are same as those of Bonfiglioli 700T Series
TypeMax. torque (N.m)Range of ratios (i)Max. Input speed (rpm)Braking torque (N.m)
ExcavatorCrane
NB700L100012003.38-32350050-400
NB701L180024003.38-32350050-400
NB703AL2500350012-175350050-400
NB705AL5000650012-175350050-400
NB705L5000650012-175350050-400
NB706AL77001200013-143350050-1000
NB706L77001200013-143350050-1000
NB707AL105001650013-256350050-1000
NB707L105001650013-256350050-1000
NB709AL160002600013-256350050-1000
NB709L160002600013-256350050-1000
NB711AL320004500014-2232500400-3200
NB711L320004500014-2232500400-3200
NB713L400005500050-2762500400-1000
NB715L3700008000054-2422500850-3200
NB700L Series gearboxes can be used interchangeably with the following models of Trasmital Bonfiglioli
700T1F701T1F703T2F705T2F705T2L706T2N707T2N
709T2N710T2N711T2C711T2F713T3N715T3N 
  • NB706S2
  • NB706S2
Technical data and installation dimension of NB700S Series gearbox are same as those of Rexroth GFB Series
TypeMax. torque (N.m )Range of ratios (i)Max. Input speed (rpm)Braking torque (N.m)
ExcavatorCrane
NB706S77001000020-1063500400-1000
NB707S105001650025-1343500400-1000
NB709S160002600020-1443500400-1000
NB710S180002900036-523500400-1000
NB710BS2300035000110-1763500400-1000
NB710DS278004850032-1813500400-1000
NB714S450006830063-1873000600-2000
NB715S650009330063-2123000600-2000
NB716S120000-63-15002500600-2000
NB717S180000-63-15002000600-2000
Our planetary gearbox, wheel drive gearbox, winch drive gearbox, track drive gearboxcan be alternatives to Bosch Rexroth gearboxes
GFB09T2GFB17T2GFB17T3GFB24T3GFB26T2GFB36T3GFB40T2
GFB50T3GFB60T2GFB60T3GFB80T3GFB110T3GFB110T4 

Note: Our planetary gearbox, wheel drive gearbox, winch drive gearbox, and track drive gearbox, are exactly the same with Bosch Rexroth in installation dimensions, and almost the same withBosch Rexroth in performance parameters.

Specific Dimensions and Technical Parameters

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