
Stearns have been manufacturing Electrical Brake, Clutches, Industrial Solenoids and Electronic Switches since 1916, and are recognised for their innovation and superior quality in the clutch and brake industry.
Stearns' full line of products includes:
SPRING-SET (POWER-OFF) MOTOR BRAKES:
1. Armature-Actuated Brakes - DC Direct Acting
The Armature Actuated Brakes (AABs) are spring-set, electrically released direct-acting brakes which develop holding and braking torque in the absence of electrical power. Direct acting brakes use a magnet that pulls directly on a plate (armature) to release the brake. This brake can decelerate and hold a rotational load or can be ordered to provide a holding function only, where the motor is used as the dynamic brake.
The following Armitage-Acuated Brakes are available:

310 Series: Delivers high torque in a compact package for servo and stepper motor applications.

320 Series: Commercial duty, small gear motors and 321 Series TENV.

333 Series: High performance brake for metric/IEC applications. Direct interchange for Kebco, Lenze and Binder. Also available for NEMA C-Face mounting, including IP43 or IP54 enclosure.

350 Series: Pressure plate mounted, IP56 enclosure, ideal for portal crane applications.

360 Series: Magnet body mount for portal crane applications.
2. Solenoid-Actuated Brakes NEMA C-Face Mount
Solenoid Actuated Brakes (SABs) are spring-set, electrically released, utilizing a solenoid and lever arrangement to release the brake. SABs are available in many configurations including Close Coupled, Double C-face, Division 1 or Division 2 Hazardous location, Foot Mounted, and Navy/Maritime/Marine Duty. SABs mount directly to a NEMA C-face motor.
The following Solenoid-Actuated Brakes are available:

Close Coupled: Mounted directly to the accessory end of the motor. Available in NEMA 2/4/4X.

Division 1 & Division 2 Hazardous Location: Close coupled or foot mounted. Available in NEMA 4 enclosure.

Double C-Face Coupler Brakes: For mounting between a C-Face motor and C-Face reducer. Available in NEMA 2/4/4X enclosure.

Foot Mounted: With bearing supported thru-shaft 1-1/2 - 105 lb-ft.
ELECTRONIC CENTRIFUGAL SWITCHES (SINPAC)

INDUSTRIAL SOLENOIDS

RECTIFIERS:
ELECTRICALLY-SET (POWER-ON) CLUTCHES AND BRAKES:

SM-1020 C-Face Clutch-Brake Module
SM-2030B Base-Mounted Clutch-Brake, Double Shafted
SM-1040 C-Face Clutch Module
SM-3040B Base-Mounted Clutch, Double Shafted
SM-20 C-Face Brake Module, with Output Shaft
SM-20MB C-Face Brake Module

CRS Clutch-Roto Sprocket

CRP Clutch Roto Sheave Unit
CTS Clutch-Thru Shaft
CCC Clutch Coupling
HEAVY-DUTY CLUTCHES AND BRAKES
Rexnord website: www.stearns.rexnord.com