CAMDRIVE 500 PSRU
Propeller Speed
Reduction Unit
Propeller Speed Reduction Units (PSRU's) are also
part of the Firewall Forward
product line. The
CAMDRIVE 500 PSRU, is designed
to handle up to 500 hp.
The design and and build up of this unit is the
result of years of hands on experience dealing with PSRU's by both Butler
and Wilson. The initial production run has adapters designed to fit
the Chevrolet V-8 blocks being used by many builders of the
Fighter Escort Wings
Mustang.
Dimensions:
| Height: 17.25
in. |
Width: 9.25
in. |
| Length: 16.5
in. |
Ratios: 1.78:1,
2.21:1** |
| Weight: 78
lbs.* |
Offset:
9 in. |
* approximate weight depending on accessories
Features:
-
Helical cut gears mesh continuously for smooth
power transfer, extended life, and quiet operation.
-
The gear case is cut from 6061 T-6 billet stock
by a CNC machine. Billet stock allows precise load carrying capability
calculations not possible with castings. It reduces weight and provides
maximum structural integrity to overcome gyroscopic precession
forces.
-
Fail safe coupling absorbs torsional harmonics.
The coupling provides both torsional damping as well as a fail safe
connection to the PSRU. If the torsional material in the coupling were
to fail, the coupling would still allow engine torque to be transmitted to
the PSRU.
-
Lubrication is by dry sump system independent
of the engine. Internal oil galleries eliminate the need for external
oil lines.
-
The gears are cut from an extremely tough alloy
developed for heavy equipment and therefore does not need to be heat treated.
As a result, the possibility of tooth chipping is virtually
eliminated.
-
The nose cone is in compression while the attachment
studs are in tension.
-
The gear case is also in compression with studs
in tension. Two of the studs carry through from the front plate to
the block.
-
Two power take-off points on the rear of the case
are driven by the output gear.
-
The output shaft is drilled for hydraulically
controlled propellers - the two stage oil pump is mounted on the front driven
by the intermediate shaft.
-
Optional accessory drives (2)
Did You know that George Bertwell bought the
CAMDRIVE 500 PSRU for his
Fighter Escort Wing
Mustang? The
CAMDRIVE500 Propeller Speed Reduction
Unit is a key part of the power train for the Fighter Escort Wing's Mustang.
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Copyright ©
1999