On-Vehicle Brake Evaluation Test System
On-Vehicle Brake Evaluation Test System
Model 1420

The Greening Model 1420 On-Vehicle Brake Evaluation Test System provides the ability to measure and report disc brake rotor inboard and outboard surface run-out, disc thickness variation (DTV), and break-away and residual brake drag torque. The self-contained, constant speed drive system and in-line torque transducer enables repeatable sequence control and accurate reporting of drag torque values. The Universal Wheel Drive Adapter fits all wheels, independent of the number of wheel lugs. Our unique design provides constant speed independent of drive adapter alignment and eliminates the need for optical alignment devices.

An intuitive operator interface makes the system easy to use and automatically generates the test report in both graphical and tabular formats. The signal conditioning rack and other sensitive electronic components are mounted in a rugged, portable cart with heavy-duty lockable casters for ease of positioning.

Model 1420 Specifications

Control System

Greening Dyna_Works™ software with Microsoft® Windows® interface

Test Reporting


Drive Motor Speed

2.0 r/min continuous

Brake Drag Measurement Range/Accuracy

0.1 to 65 N·m / 0.1% full scale

Displacement Probe Type

6 capacitive, non-contact probes with 90° quick disconnect cables (2 or 4-probe options are available)

Displacement Probe Range/Accuracy

2.54 mm (0.10 inches) / 0.25% full scale

Universal Wheel Drive Adapter

12 to 16-inch or 18 to 24-inch wheel diameters

Drive Shaft Height Range

1168 - 1676 mm (46 - 66 inches) from floor to center of test vehicle wheel

Wheel Position Encoder

2048 ppr

Electrical Requirements

120/240 VAC, 50/60Hz


1067 Wide x 965 High x 736 Deep mm (42W x 38H x 29D inches)

Operating Temperature

0° to 35°C (32°F to 95°F)


50 kg (110 lbs)