138FHB

Typical Applications

Draglines

Hoist
Drag
Swing
Propel (Walk)

Electric Shovels

Hoist
Crowd
Swing
Propel

Winches

Features

Large friction area.

Rated for over 430,000 lb-in of torque

Patented braking concept uses a floating housing instead of a floating rotor

Multiple brake installation designs exist for industry leading motors

Fixed hub and rotor design

Minimal adjustment required for lining wear.

Single disc units require no wear adjustment and dual disc units require only one wear adjustment during the long life of the friction material.

Benefits

Ability to quickly change the friction pads reduces down time on dragline from 3 hours to 1 hour

Reduced maintenance cost with elimination of spline tooth or gear wear

Longer friction pad wear life due to a full 360º annular disc

Faster and safer installation with exclusive shaft lock assembly for ease of mounting and removal

Virtually no wear during free wheeling, allows high product life

Specifications

Number of Spring Sets	36
Dynamic Torque	432900 lb·in 48918 Nm
Maximum Speed	950 rpm
Length Engaged	18.24 in 463.3 mm
Length Released	18.48 in 469.39 mm
Manufacturer	Eaton-Airflex
Actuation	Spring Applied, Air Release

Notes

Dynamic torque calculated based on 36 sets of springs, static torque is approximately 15% more. Torque in each application is dependent on number of spring sets.