A-Lenth of the chamber:  113mm  (the stud housing AND spring housing).

Clamp ring outside diameter: 168mm

Push rod lenth (without stroke) :  229mm

Push rod thread: 1/2-20UNF

Mouting screw bolt thread: 7/16-14UNC

Air port thread: 3/8-NPTF

Clevis pin diameter:12.7mm

Stroke:  57mm

Maximum operating pressure: 1MPa

Operating temperature range: -40°C to +80°C

Medium:  Compressed air

Product standard:  SAE J1469 Aug 95,ISO9001-2000

This range of spring brake chambers is used on axles fitted with drum brakes.The single

diaphragm chamber to  provide the service(and secondary) brake function.

SERVICE CHAMBERS