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

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

Mfr Part#
6430497-1

Boeing 65B14361-7 Stop Crank Assembly
Boeing 65B14361-7 Stop Crank Assembly
The Boeing Company

Mfr Part#
65B14361-7

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

Mfr Part#
1539M78P03

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

Mfr Part#
65-52881-37

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

Mfr Part#
724912-9

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

Mfr Part#
144A6637-1

6000447 Ring
6000447 Ring

Mfr Part#
6000447

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

Mfr Part#
421Z0441-5071

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

Mfr Part#
421Z0441-5073

REPAIRBR
REPAIRBR
The Boeing Company

Mfr Part#
9151372011-221M-NCR1090840N

251A4150-2#A Accountability Rework - Mechanism Installation
251A4150-2#A Accountability Rework - Mechanism Installation

Mfr Part#
251A4150-2#A

REPAIRBR
REPAIRBR
The Boeing Company

Mfr Part#
9151372011-41M-NCR1143299N

Boeing 644TEST-LOS-X750-TORQUE-BRK-HSG Torque Break Housing
Boeing 644TEST-LOS-X750-TORQUE-BRK-HSG Torque Break Housing
The Boeing Company

Mfr Part#
644TEST-LOS-X750-TORQUE-BRK-HSG

Boeing 251T3432-3 Racket
Boeing 251T3432-3 Racket
The Boeing Company

Mfr Part#
251T3432-3

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

Mfr Part#
3282556-2

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

Boeing K71002-122 K71002-Aft Torque Multiple Outboard Arm Assembly
Boeing K71002-122 K71002-Aft Torque Multiple Outboard Arm Assembly

Mfr Part#
K71002-122

REPAIRBR
REPAIRBR
The Boeing Company

Mfr Part#
9151447922-291N-NCR1133312N

Showing 1-20 of 37 results

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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