1
222 W. Memorial Road, Oklahoma City, OK 73114-2317
Phone: 1-800-624-7697 Fax: 405-755-8425
www.magpowr.com E-mail: [email protected]
INSTRUCTION MANUAL
GLOBAL SERIES BRAKE
MODELS: GBA, GBAM, GBB, GBBM, GBC, GBCM, GBD, GBDM, GBE, GBEM
CAUTION:
This product contains rotating parts which could cause injury at time of installation.
Appropriate protective guards should be installed by the user according to his use of this product.
All of the information herein is the exclusive proprietary property of Maxcess International, and is disclosed with the
understanding that it will be retained in confidence and will neither be duplicated nor copied in whole or in part nor
be used for any purpose other than for which disclosed.
Copyright 2008, all rights reserved.
Periodically there will be updates to this manual. The latest version is available at www.magpowr.com or by calling
1-800-MAGPOWR (624-7697).
THEORY OF OPERATION
The brake construction consists of two stators, a rotor, a coil assembly, magnetic powder, and two
bearings. The bearings support and align the rotor with the stators, and allow the rotor to rotate within the
brake assembly. The magnetic powder occupies the space between the stators and the rotor, and
represents a key element in the operation of the brake.
The stators are connected to the machine frame through a torque arm and remain stationary. The rotor is
connected to a rotating machine shaft, which supports the weight of the brake. The magnetic powder
functions as the adjustable bond or link between the stators and the rotor. It is the medium for the
transmission of torque.
An electric current in the coil creates a magnetic field (flux), which passes through the stators, magnetic
powder, and the rotor. The flux aligns the powder particles, forming a bond or link between the stators
and the rotor. The strength of the bonding action (torque) is proportional to the amount of current in the
coil. The torque is transmitted to the rotating shaft through the rotor.
MECHANICAL INSTALLATION
1. The rotor shaft centerline must be mounted within 30° of the horizontal plane.
2. Prior to installation, manually check the rotation of the rotor to observe that it is smooth and free of
binding or scraping.
3. Mount the brake on the shaft and tighten the two set screws.
4. Attach a torque arm between the extension bolt and the machine frame with a “loose” or “floating”
mount to prevent binding forces on the brake bearings. The torque arm will prevent the rotation of the
brake stators. Protective guards should be installed by the user according to his use of this product.
850A169-1
03/09 Rev. H
