PEGASEM

th
Wheel
5 -Wheel for Vehicle Testing Messtechnik GmbH

Features
• Enables reversing and skid testing
• Compact Size
• Low Weight
• Robust and corrosion resistant
• P-Lock Quick Fastener
• Easy to disassemble and transport
• Available in a special carrying case

Applications
• High Prec. Speed Measurement
• Acceleration Testing
• Brake Performance Testing
• Speed Reference during Tire Slip-
Testing
• High Precision Distance Measure-
ment
• Vehicle Development
• Registration 5th-wheel 5W-20 in action attached with elements from the FMS Mounting System.

The newly designed 5th-wheels of Very smooth running characteristics diameter due to loss of pressure, is no
PEGASEM stand out because of their on the road are achieved by using a longer necessary. Depending on usage,
precision, compactness and carefree high-grade damper with extra long the initial calibration remains valid
reversing ability. This unique design spring travel. This, together with the for several years.
avoids lateral forces to the rim when newly designed pulse transducer, re-
the vehicle is skidding or reversing. sults in a low noise speed signal.
This enables the vehicle to be turned When selecting the materials, empha-
sis was put on robustness and corro-
sion resistance. All components, e.g.
joints, fork, axle, ball bearings,hub,
spokes, rim and tyres, have been con-
structed for heavy-duty application.
Nevertheless the unit is compact and
easy to transport.
The 20”-version is also excellently
Mounting on ball shaped trailer hitch
suited for mounting under trucks. The
test driver can at last manoeuvre with-
out having to consider lifting the 5th- Furthermore, during design a high
Reversing over kerbstones - no problem
wheel. Even reversing over kerbstones level of modularity was incorporated.
is no problem. In the case of damage the user can
without lifting the 5th-wheel. The in- simply change any part within minutes,
tegrated sensor delivers stable meas- For extremely high precision measure- no special training or any non-stand-
urement data even on critical surfaces ments, the PEGASEM 5 th-wheel is ard tools being necessary. Returning
e.g. on flooded test tracks where non- available with an airless PUR-tyre. the wheel to the factory for repair is
contact speed sensors often fail. Therefore re-calibration of the wheel therefore usually not required. This in-
 PEGASEM
th
Wheel
5 -Wheel for Vehicle Testing

creases the availability and minimises Our attachment devices are modular test equipment on the car.
cost. and extremely versatile. They are also
For attachment to the vehicle we of- very well suited for mounting other Please ask for our separate data sheet:
fer various mounting devices e.g. FMS, the PEGASEM 5th-wheel Mount-
• Suction Cup Holders ing System.
• Clamps for the Trailer Hitch
• Clamps for the Towing Lug
• Brackets and Plates for under floor
rails on trucks
• Customised Plates and Flanges

The 5th wheel with accessories perfectly fits into the custom-

Truck under floor attachment of 20”-sized wheel 5W-26 with spikes: Ideal for winter and ice condition made transportation case. 550x550x270 (WxDxH)

Technical Data:

Mechanical Data 5W-20 5W-20-AL 5W-26

Metric Standard Metric Standard Metric Standard
Wheel Diameter 509 mm 20 inch 476 mm 18,7 inch 560 mm 22 inch
Max. Air Pressure 8,5 bar 120 psi --- bar --- psi 4,5 bar 65 psi
Max. Speed 250 km/h 155 mph 100 km/h 62 mph 250 km/h 155 mph
Vertical Force on Road 100 N 100 N 100 N 100 N 200 N 200 N
Intelligent Test Solutions
Lenght (appr.) 800 mm 32 inch 800 mm 32 inch 1000 mm 40 inch
Arcing Angle ±90 deg ±90 deg ±90 deg ±90 deg ±90 deg ±90 deg
Weight 5,3 kg 11,7 lbs 5,3 kg 11,7 lbs 6,8 kg 15 lbs
Number of Spokes 48 48 48 3 3
Fork Material Stainless Steel Stainless Steel Stainless Steel
Tyre Pneumatic Polyurethane (PUR) Pneumatic
Wheel Mounting Technique Quick Release Skewer Quick Release Skewer Quick Release Skewer
Sensor Data
Power Supply 5...24 VDC, 20mA 5...24 VDC, 20mA 5...24 VDC, 20mA
Pulse Rate per Revolution 128 128 128
© 2005 PEGASEM Messtechnik GmbH - fwl_uk-1.4

Administration An der Lach 11 Technical office Zugspitzstraße 8

D-86720 Noerdlingen / Germany D-86438 Kissing / Germany
Fon +49 (0)9081) 60 4710 Fon +49 (0)82 33) 8476 87
Fax +49 (0)90 81) 6047 11 Fax +49 (0)8233) 84 76 88
info@pegasem.com kk@pegasem.com
Messtechnik GmbH www.pegasem.com