ZF 25 M (HBW 250)
 
TECHNICAL DATA
Configuration:   Vertical Offset
Mounting:   Direct to Engine.
Bell Housings:  Borg Warner Adaptor, SAE 5
Weight (approx. dry):  18 kg (40 lbs)
Oil capacity (approx.):  0.75 litres (0.80 US quarts)
Fluid Grade:   ATF
Standard Input Rotation:   Anticlockwise engine rotation when looking at the flywheel end.

*Dimensions and weights refer to transmissions with adaptor plates but excluding options such as: trolling valves, power take-offs, propeller shaft companion flanges,torsional couplings etc.

PLEASURE DUTY CLASSIFICATION
MODEL RATIOS MAXIMUM INPUT POWER
"A" "B" 2600 rpm 2800 rpm 3200 rpm HP/rpm ft.lb kW/rpm Nm
HP kW HP kW HP kW

ZF 25 M
(HBW 250)
(HBW 250)

1.880

2.100

91

68

98

73

112

84

0.0351

185

0.0262

250

2.740

2.720

62

46

66

50

76

57

0.0237

125

0.0177

169
Max engine speed: 5000 rpm.   Max Input Power 80 kW.   Ratio 1.880 - Pos "B" max input torque 230 Nm.

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CONTINUOUS DUTY CLASSIFICATION
MODEL RATIOS MAXIMUM INPUT POWER
"A" "B" 1800 rpm 2300 rpm 2600 rpm HP/rpm ft.lb kW/rpm Nm
HP kW HP kW HP kW
ZF 25 M
(HBW 250)		 1,880 2,100 45 34 58 43 66 49 0.0252 132 0.0188 180
2,740 2,720 30 23 39 29 44 33 0.0169 89 0.0126 120
Max engine speed: 5000 rpm.   Max Input Power 57 kW.

.

For all HBW transmissions, reduce maximum power capacity by the following shock factor values:
1 cylinder engine: K=1.25
2 cylinder engine: K=1.20
3 cylinder engine: K=1.15