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VELVET DRIVE 71 &
72 INLINE MARINE TRANSMISSIONS |
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Wide
selection of Reduction Ratios to suit your particular
needs |
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Proven,
reliable cast iron design |
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 The
"71" and "72" designations of Borg-Warner
marine transmissions indicate input horsepower ranges. There
are 3 basic models of transmissions; each with offerings in the 71
and 72 ratings. The most popular model is the In-Line
unit. "In-Line" indicates that the input and
output shafts of the transmission are on the same plane.
Direct drive versions of the in-line models are frequently used on
high horsepower, light weight boats while the reduction ratio
versions use an additional planetary gear set to allow the use of
larger propellers for greater pulling power at lower speeds.
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Dimensions
For 71C (10-17) & 72C (10-18) In-Line Models |
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Inches
(millimeters) |
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Model |
A |
B |
C* |
DØ |
EØ |
FØ** |
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71C
(10-17) |
5.63 (143.00) |
5.69 (144.53) |
16.89
(429.01) |
2.50 (63.50) |
4.25 (107.95) |
5.00 (127.00) |
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72C
(10-18) |
5.63 (143.00) |
5.69 (144.53) |
17.79
(451.86) |
2.50 (63.50) |
4.25 (107.95) |
5.00 (127.00) |
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*
Note for "C" dimension - direct drive units: 71C
(10-17) 10.50 in. (266.70mm)
72C (10-18) 11.44 in. (290.58mm) |
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**Direct
drive model 71 (only) uses 4 in. (101.60mm)
coupling. |
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General
Information for Model 71C (10-17) |
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Ratings:
Gasoline |
up to 310
HP @ 4200 RPM |
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Ratings:
Diesel |
up
to 182 HP @ 3200 RPM |
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Available
Ratios |
1.00,
1.52, 1.91*, 2.10, 2.57, 2.91:1.00 |
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Shaft
Rotation |
output
same as engine unless noted by asterisk (*) |
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Approx.
Dry Weight (direct drive) |
95
lb. (43.1 kg.) |
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Approx.
Dry Weight (reduction) |
145
lb. (65.8 kg.) |
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General
Information for Model 72C (10-18) |
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Ratings:
Gasoline |
up to 475
HP @ 4200 RPM |
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Ratings:
Diesel |
up
to 274 HP @ 3200 RPM |
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Available
Ratios |
1.00,
1.52, 1.91*, 2.10, 2.57, 2.91:1.00 |
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Shaft
Rotation |
output
same as engine unless noted by asterisk (*) |
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Approx.
Dry Weight (direct drive) |
109
lb. (49.4 kg.) |
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Approx.
Dry Weight (reduction) |
153
lb. (69.4 kg.) |
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Please Note: While every attempt is made to ensure the information on this site is
accurate, this data is provided for information purposes only and is
subject to change without notice. |
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Fill
out the form below and submit your request for information regarding
Velvet Drive 71 &
72 Inline Transmissions to Trans Atlantic Diesels |
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or |
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Call
us at
1-800-927-9295
for more information. |
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This Page Last
Updated January 02, 2009 |
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Site developed and maintained by
First InSites |
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