Bendix Commercial Vehicle Systems BRAKE APPLICATION GUIDELINES - Manual (Page 21)

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Defi nitions
„ Vehicles generally used for non-commercial transportation and as traveling domiciles for families
„ 100% loaded full time
„ May pull small passenger car, SUV or pick-up truck
„ Typical vehicle routes exceed 30 miles between start and stop
„ Annual mileage will be under 30,000
„ Typical operation is on paved roads and short distances within campgrounds and parks
Typical Vehicle Types
Recreational Vehicles
Vehicle Confi gurations
Straight coach type vehicles with towing ability:
4 x 2 straight coach
6 x 2 (with non-liftable tag or pusher axles)
General Requirements
• Anti-compounding air system
• Cam same operation for all steerable axle brakes
• Air chamber bracket assembly gusset and additional camshaft bracket support see page 45, attached to the axle housing
when the:
a. Brake centerline to air chamber centerline distance (BCCC dimension) is greater than 343 mm [13.5"]
b. Application use a type 30/36 or 36/36 Spring brake chambers.
c. Camshaft brackets with BCCC dimension of less than 8.12" does not require a gusset or additional support.
d. Super Single Tire (Wide Base)
Note: The above support can be supplied by BSFB or the vehicle manufacturer but
must be approved by BSFB Application Engineering Department.
• Air chamber bracket with gusset for applications, see page 45, when the application includes any of the following
components:
a. Super single tires
b. Type 30/36 or 36/36 Spring brake chambers.
• BSFB Application Engineering approval for:
a. Vehicle towing unbraked trailer vehicle.
b. Applications for use in countries other than the USA and Canada must be reviewed by BSFB Application
Engineering.
• Vehicle manufacturer is responsible for air system design, parking and stopping distance performance.
• For all S-cam brake models the camshaft input torque is limited to 2545 N•m [22,500 in-lbs].
General Recommendations
• Cam same for all brake assemblies
• Dust shields for all applications
• Use Auxiliary retarders per TMC RP636
• Brake drum / Rotor material specifi cation per SAE J431. Drum / rotor surface fi nish 4.57 micrometers [180 max microinch]
and .38 mm [.015"] runout, when mounted on a hub rotated on bearings. See notes section for Minimum Drum Weight
requirements
• Brake air system balance per TMC RP632
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