Brake Mechanisms

Brake mechanisms are essential in propeller systems. They ensure safe operation during critical phases of flight, helping manage the stopping and holding functions of the propeller by preventing unwanted movement. Our selection of brake mechanisms from leading manufacturers guarantees durability and optimal performance. Shop our selection to find brake mechanisms for your fleet.
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251A4818-1 Rotor Coupling, Secondary Brake, Stabilizer Trim
251A4818-1 Rotor Coupling, Secondary Brake, Stabilizer Trim
The Boeing Company

Mfr Part#
251A4818-1

Boeing 251N4176-1 Housing Indicator-Torque Brake, Flap Alternating Current
Boeing 251N4176-1 Housing Indicator-Torque Brake, Flap Alternating Current
The Boeing Company

Mfr Part#
251N4176-1

6000447 Ring
6000447 Ring

Mfr Part#
6000447

421Z0441-5073 Mechanism Clutching Assembly
421Z0441-5073 Mechanism Clutching Assembly
The Boeing Company

Mfr Part#
421Z0441-5073

421Z0441-5071 Mechanism Clutching Assembly
421Z0441-5071 Mechanism Clutching Assembly
The Boeing Company

Mfr Part#
421Z0441-5071

Boeing 65-52881-37 Drum Mechanism System
Boeing 65-52881-37 Drum Mechanism System

Mfr Part#
65-52881-37

1539M78P03 Channel-Thrust Reverser.
1539M78P03 Channel-Thrust Reverser.
General Electric Company

Mfr Part#
1539M78P03

747-5750-1-0 Alternating Current Motor With Brake
747-5750-1-0 Alternating Current Motor With Brake
Goodrich Corporation

Mfr Part#
747-5750-1-0

3282556-2 Stop-Mechanism Bleed
3282556-2 Stop-Mechanism Bleed

Mfr Part#
3282556-2

Boeing 144A6637-1 Shroud-Counterbalance Mechanism, Automatic
Boeing 144A6637-1 Shroud-Counterbalance Mechanism, Automatic
The Boeing Company

Mfr Part#
144A6637-1

Boeing 036Z0333-1 Service Bulletin Top Kit-Direct Mode R
Boeing 036Z0333-1 Service Bulletin Top Kit-Direct Mode R
The Boeing Company

Mfr Part#
036Z0333-1

724912-9 Generator-Braked Motor
724912-9 Generator-Braked Motor

Mfr Part#
724912-9

6430497-1 Rotor-Exciter
6430497-1 Rotor-Exciter
Honeywell International Inc

Mfr Part#
6430497-1

2610625-7 Rotor: Brake
2610625-7 Rotor: Brake

Mfr Part#
2610625-7

Boeing 258W2326-1 Rotor Disc, Brake-Rotary Actuator
Boeing 258W2326-1 Rotor Disc, Brake-Rotary Actuator
The Boeing Company

Mfr Part#
258W2326-1

Boeing 256U3142-2 Ring-Brake Drive
Boeing 256U3142-2 Ring-Brake Drive

Mfr Part#
256U3142-2

Boeing 251N2145-3 Ratchet-Primary Brake, Actuator, Stab
Boeing 251N2145-3 Ratchet-Primary Brake, Actuator, Stab
The Boeing Company

Mfr Part#
251N2145-3

Frequently Asked Questions

What are aircraft brake mechanisms?

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Brake mechanisms are devices used in propeller systems to help stop and hold the propeller and prevent unwanted movement.

What are the types of brake mechanisms?

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The two types of propeller brake mechanisms, including mechanical locking and hydraulic friction brakes. Hydraulic friction brake systems are available in drum brakes and disc brakes, which are the most common. Mechanical locking brake systems are available in an overrunning clutch that engages the clutch to try to run it backward and the positive locking mechanism, which locks the propeller and prevents further rotation.

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