ZF W220
TECHNICAL DATA SHEET
ZF 220 SERIES
PRODUCT DETAILS
Description
Reverse reduction marine transmission with hydraulically actuated multi-disc clutches
Robust design also withstands continuous duty in workboat applications
Fully works tested, reliable and simple to install
Compatible with all types of engines and propulsion systems
Design, manufacture and quality control standards comply with ISO 9001
Features
Durable cast iron construction
Case hardened and precisely ground gear teeth for long life and smooth running
Output shaft thrust bearing designed to take maximum propeller thrust astern and ahead
Compact, space saving design
Smooth and reliable hydraulic shifting with control lever for attachment of push-pull cable
Suitable for twin engine installations (same ratio and torque capacity in ahead or astern mode)
ZF W220
RATINGS
Ratios Power Factor Input Power Capacity Max. Max. Max.
kW/RPM hp/RPM kW hp kW hp kW hp kW hp RPM
Medium Duty - Diesel 2100 RPM 2500 RPM 2800 RPM
2.618 0.0792 0.1062 166 223 198 266 222 297 253 340 3200
3.133 0.0768 0.1030 161 216 192 258 215 288 246 330 3200
3.556 0.0696 0.0933 146 196 174 233 195 261 223 299 3200
3.960 0.0644 0.0864 135 181 161 216 180 242 206 276 3200
4.636 0.0552 0.0740 116 155 138 185 155 207 177 237 3200
Continuous Duty - Diesel 1800 RPM 2100 RPM 2300 RPM
2.618 0.0666 0.0893 120 161 140 188 153 205 213 286 3200
3.133 0.0615 0.0825 111 149 129 173 141 190 197 264 3200
3.556 0.0562 0.0754 101 136 118 158 129 173 180 241 3200
3.960 0.0510 0.0684 92 123 107 144 117 157 163 219 3200
4.636 0.0462 0.0620 83 112 97 130 106 143 148 198 3200
* Special Order Ratio
Timestamp: 26.10.2023 02:00:00 - Technical Data Sheet - ZF W220 2
ZF W220
DIMENSIONS
A B1 B2 H1 H2 L L1 L2
Millimeter (mm)
210.0 218.0 218.0 210.0 425.0 397.0 309.0 87.0
Inch (in)
8.27 8.58 8.58 8.27 16.73 15.63 12.17 3.43
Weight (kg) Weight (lb) Amount of Oil (l) Amount of Oil (qt)
105 231 7.0 7.4
BELL HOUSING DIMENSIONS
Bolt Holes
A B C L3
Name Diameter
No.
mm in mm in mm in mm in mm in
SAE 2 447.68 17.63 466.73 18.38 488.95 19.25 13.0 0.51 12 10.32 0.41
SAE 3 409.58 16.13 428.63 16.88 450.85 17.75 12 10.32 0.41
3 CAT
OUTPUT FLANGE DIMENSIONS
Bolt Holes
A B C D
Diameter (E)
No.
mm in mm in mm in mm in mm in
184.15 7.25 152.4 6.0 95.3 3.75 16.0 0.63 8 16.3 0.64
Timestamp: 26.10.2023 02:00:00 - Technical Data Sheet - ZF W220 3
GENERAL INFORMATION
Duty Definitions
Pleasure Duty
Highly intermittent operation with very large variations in engine speed and power.
500 hours/year
Average engine operating hours limit:
300 hours/year for mechanical gearboxes
Typical hull forms: Planing
Applications: Private, non-commercial, non-charter leisure activities, no racing
Light Duty
Intermittent operation with large variations in engine speed and power.
2500 hours/year
Average engine operating hours limit:
(for hydraulic transmissions smaller than ZF 2000 series, 2000 hours/year)
Typical hull forms: Planing and semi-displacement
Typical applications: Private and charter, sport/leisure activities, naval and police activities
Medium Duty
Intermittent operation with some variations in engine speed and power.
4000 hours/year
Average engine operating hours limit: (for hydraulic transmissions smaller than ZF 2000 series and workboat ZF W2700 series, 3500
hours/year)
Typical hull forms: Semi-displacement and displacement
Typical applications: Charter and commercial craft (example: crew boats), and naval and police activities
Continuous Duty
Continuous operation with little or no variations in engine speed and power.
Average engine operating hours limit: Unlimited
Typical hull forms: Displacement
Typical applications: Heavy duty commercial vessels
Technical Notes
Duty Ratings
Ratings apply to marine diesel engines at the indicated speeds. At other engine speeds, the respective power capacity (kW) of the
transmission can be obtained by multiplying the Power/Speed ratio by the speed. Approximate conversion factors:
1 kW = 1.36 metric hp
1 kW = 1.34 U.S. hp (SAE)
1 U.S. hp = 1.014 metric hp
1 Nm = 0.74 lb.ft.
1 Kg = 0.454 lb
Ratings apply to right hand turning engines, i.e. engines having counterclockwise rotating flywheels when viewing the flywheel end of the
engine. These ratings allow full power through forward and reverse gear trains, unless otherwise stated. Contact your nearest ZF Sales and
Service office for ratings applicable to gas turbines, as well as left hand turning engines, and marine transmissions for large horsepower
capacity engines. Ratings apply to marine transmissions currently in production or in development and are subject to change without prior
notice.
NOTE: The maximum rated input power must not be exceeded (see respective ratings in the technical data sheets).
Safe Operating Notice
The safe operation of ZF products depends upon adherence to technical data presented in our brochures. Safe operation also depends upon
proper installation, operation and routine maintenance and inspection under prevailing conditions and recommendations set forth by ZF.
Damage to transmission caused by repeated or continous emergency manoeuvres or abnormal operation is not covered under warranty. It is
the responsibility of users and not ZF to provide and install guards and safety devices, which may be required by recognized safety standards
of the respective country (e.g. for U.S.A. - the Occupational Safety Act of 1970 and its subsequent provisions).
Monitoring Notice
The safe operation of ZF products depends upon adherence to ZF monitoring recommendations presented in our operating manuals, etc. It is
the responsibility of users and not ZF to provide and install monitoring devices and safety interlock systems as may be deemed prudent by ZF.
Consult ZF for details and recommendations.
Survey Society Classification
In most cases, the maximum medium and continous duty ratings permitted by ZF are accepted in full by major classification societies. If
classification is required, contact ZF regarding proper procedures (also for yacht service and ice classifications service).
Dimensions and Weights
Dimensions and weights refer to transmissions with bell housing (where appropriate) but excluding options such as: trolling valves, power
take-offs, propeller shaft companion flanges, torsional couplings etc.
Torsional Vibration and Torsional Couplings
The responsibility for ensuring torsional vibration compatibility rests with the overall propulsion system integration responsible party.
Compatibility check of torsional vibration must include excitations induced by engine governor. ZF cannot accept any liability for gearbox noise
or for damage to the gearbox, the flexible coupling or to other parts of the drive unit caused by torsional vibrations. Contact ZF for further
information and assistance.
For single engine powered boats, where loss of propulsion can result in loss of control, ZF recommends the use of a torsional limit stop. It is
the buyer's responsibility to specify this option. ZF cannot accept any liability for personal injury, loss of life or damage or loss of property due
to the failure of the buyer to specify a torsional limit stop.
ZF selects torsional couplings on the basis of nominal input torque at commonly rated engine speeds. Consult ZF for details concerning speed
limits of standard offered torsional couplings, which can be below transmission limits. Special torsional couplings may be required for Survey
Society requirements.
Timestamp: 26.10.2023 02:00:00 - Technical Data Sheet - ZF W220 4
