User's Manual
charging systems
COMPRESSORS
For over 80 years Bendix has been the industry leader in the design and manufacturing of compressors and
components of air braking control systems for on-highway applications. No other manufacturer can offer
you “genuine Bendix” quality, power and performance for your vehicles. Put us on your team!
For more information, talk to your Bendix Account Manager, call 1-800-AIR-BRAKE (1-800-247-2725),
or visit www.bendix.com today.
Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, Ohio 44035 • www.bendix.com • 1-800-247-2725
BW2878 ©2011 Bendix Commercial Vehicle Systems LLC, a member of Knorr-Bremse Group • 12/11 • All Rights Reserved
ANATOMY OF A LEGEND
Engineering Statistics
Bendix
®
is signicantly better in oil passage due to optimized piston/ring design, and generally lower discharge temperatures.
This results in less carbon build-up and contamination downstream and less system maintenance in general. The choice is clear.
Bendix Leading Bendix Leading
Competitor Competitor
Single Cylinder Twin Cylinder
Bendix BA-921
®
Leading Bendix BA-922
®
Leading
Compressor Competitor Compressor Competitor
Piston Size
92mm 86mm 92mm 86mm
Swept Air Displacement
360cc 318cc 720cc 636cc
Calculated Air Delivery
15.8cfm 14.0cfm 31.6cfm 27.9cfm
(@ 1,250 rpm)
Bendix Leading Bendix Leading
Competitor Competitor
0.8
0.6
0.4
0.2
0
cc
Oil Passage (per hour)
380
360
340
320
300
280
260
240
Temperature ˚F
Discharge Air
Temperature
0.2
0.8
1,800 RPM
3,000 RPM
260˚
311˚
266˚
345˚
0.25
0.8
250˚
302˚
298˚
372˚
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