JSH Series hydraulic slewing drive showing the distributor, mounting flange and output pinion
01Distributor
02Mounting flange
03Output pinion

Typical JSH configuration shown. Distributor and output pinion are selected to suit the duty.

Hydraulic drive · Mainly custom-built

JSH Series
Hydraulic Slewing Drive

An integrated slewing drive made up of a JNM hydraulic motor, planetary gearbox and output pinion. The pinion meshes with the slewing bearing to turn the upper structure or turntable. JSH3, JSH4 and JSH5 have a built-in brake. The distributor (with valves) and output pinion can be selected to suit the system flow and slewing bearing, and other sizes and configurations can be supplied to customer requirements.

Catalog models
30models · 5 series
Rated output torque
1,000–22,136N·m
Ratio
5–35

JSH3, JSH4 and JSH5: rated pressure 16 MPa, static braking torque 2,520–39,000 N·m, maximum power 48, 96 and 160 kW respectively. JSH2.5 2.5 is the high-ratio (25–35) version, speed 0.2–20 r/min.

Technical data

JSH Series model data

Use the selection map to locate models by the torque and speed you need, then see the full data for that series in the table below. Outline views, mounting dimensions and output pinions are in each series' drawings.

Selection map

Each dot is one catalog model

N·m r/min

Showing all 30 models

Horizontal axis: rated output torque, N·m, log scale.

Click any model on the map to see its data, or enter the torque you need.

Series

Unit
JSH Series hydraulic slewing drive model data
ModelRated output torque (N·m)RatioSpeed range (r/min)Total displacement (ml/r)Hydraulic motor
JSH2.5-1000D60221100073-55518JNM05-75
JSH2.5-1200D60221120072-25602JNM05-90
JSH2.5-1500D60221150072-22805JNM05-110
JSH2.5-1700D60221170072-20805JNM05-110
JSH2.5-2000D60221200052-201005JNM1-200
JSH2.5-2500D60221250052-201215JNM1-250
JSH2.5-3000D60221300052-201450JNM1-300
JSH2.5-3500D6022135005.52-201727JNM1-320
JSH2.5-4000D6022140005.52-201870JNM1-350

Showing 9 of 30 models

Click a model to see its full data.

Ratings: JSH2.5 and JSH2.5 2.5 also list maximum torque and motor working pressure (rated / max.); JSH3, JSH4 and JSH5 also list rated pressure, brake data and maximum power. “—” = not listed; please ask us if you need this value.

JSH2.5

Ratio 5–7

JNM05 series motor with planetary gearbox, compact design; upper speed limit 20–55 r/min.

Rated torque
1,000–4,000 N·m
Motor
JNM05
Mounting pilot
φ180f7

JSH2.5 2.5

Ratio 25–35

High-ratio version, speed 0.2–20 r/min, lower motor working pressure.

Rated torque
1,500–5,000 N·m
Motor
JNM05
Mounting pilot
φ210f7

JSH3

With brake · 48 kW

JNM1 and JNM2 series motors, rated pressure 16 MPa, brake release pressure 2.2–2.6 MPa.

Rated torque
1,685–5,316 N·m
Static braking torque
2,520–7,800 N·m
Mounting pilot
φ235f7

JSH4

With brake · 96 kW

JNM3 series motor, rated pressure 16 MPa, ports M33x2.

Rated torque
4,873–10,886 N·m
Static braking torque
6,500–15,000 N·m
Mounting pilot
φ330f7

JSH5

With brake · 160 kW

JNM4 series motor, rated pressure 16 MPa, rated output torque up to 22,136 N·m.

Rated torque
13,195–22,136 N·m
Static braking torque
30,000–39,000 N·m
Mounting pilot
φ400f7

Selection guide

Matched to torque, flow and slewing bearing

The notes below apply to all five series; the actual configuration is per the approved drawing.

01

Output pinion

  • Select according to the output torque
  • to ensure the strength of the gear and drive shaft
  • Common types are listed; pinions can be made to suit your slewing bearing
02

Distributor

  • Select according to the oil flow the system allows
  • The distributors listed are common types
  • The distributor carries ports A and B and drain port O
03

Brake & direction

  • JSH3, JSH4 and JSH5 have a brake, release pressure 2.2–2.8 MPa
  • Oil in at port A and oil in at port B give opposite directions (see end view)
  • Other sizes and configurations to customer requirements

Custom builds

Mainly custom-built, designed around your machine

The catalog models are a starting point for selection. Each item below can be designed to the torque, speed and mounting conditions of your equipment.

A

Torque & ratio

  • Five series, rated output torque 1,000–22,136 N·m
  • Ratio 5–35, motor displacement matched to speed and flow
  • JNM05–JNM4 series motors
B

Output pinion

  • Common pinion modules 4 to 16
  • Number of teeth, profile shift coefficient and face width designed to the slewing bearing
  • Pinion dimensions in each series' drawings
C

Mounting & hydraulics

  • Mounting pilot, pitch circle and mounting holes to suit the machine
  • Distributor (with valves), port size and orientation
  • Brake static braking torque and release pressure

Main mounting dimensions of the five series

ItemJSH2.5JSH2.5 2.5JSH3JSH4JSH5

Dimensions in mm; “+ B” means plus the output pinion face width B. Mounting dimensions are per the approved drawing. For the matching motors, see the JNM Series hydraulic motor.

Selection support

Tell us your duty,
we'll confirm the right slewing drive.

Send the information in the checklist and we will check it against the catalog models or assess a custom design. The product catalog and installation drawing are provided once the model and mounting interface are confirmed.

Please include

  1. 01Required slewing torque and slewing speed
  2. 02System pressure, flow and control circuit
  3. 03Module, number of teeth and profile shift coefficient of the slewing bearing gear ring
  4. 04Mounting pilot, pitch circle, mounting holes and brake requirements

Model comparison