Products Catalog
Model DBB brakes are spring applied, pressure released, disc style brakes. They develop equal torque in either direction of rotation. Their torque and thermal capacities allow them to be used in the most demanding applications.

Brake construction and operation is shown in the figure. Pressurizing the brake compresses the brake springs and withdraws the clamping plates from the brake discs. Standard brakes are furnished with either one or two discs, which are free to move axially.

Model DBB uses a conventional piston design to release the brake discs.

The rotating component of the DBB style brake is a very low inertia friction disc core with riveted on friction discs. The low inertia of the rotating components coupled with the high heat sink capacity of the stationary members allow these units to provide superior performance in high cyclic applications. In applications requiring higher speed operation or where precise balance of the rotating components is required, the DBBS style is offered, which utilizes a solid rotor and stationary friction material. Similar to the DBAS design, the DBBS should only be used for applications where brake engagement is non-cyclic.

Torque ratings listed are for brakes with a standard compliment of springs. The quantity of springs can be varied to customize the torque of the brake to suit a particular application. Consult the factory for brake torque of units with non-standard spring configurations.

Brake sizes are indicated by the number of brake discs and the disc diameter in inches. For instance, size 225DBB has two discs 25 inches in diameter.
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Item #

Gear Part Number

Dynamic Torque Rating

Manufacturer

Actuation

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N/A 416059 N/A 101500 lb·in11459 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416073 N/A 115300 lb·in13017 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416241 N/A 1153000 lb·in130282 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416069 N/A 1200000 lb·in135.480 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 415314 N/A 14000 lb·in1581 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416464 N/A 1470000 lb·in166101 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416304 N/A 149500 lb·in16879 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416059 N/A 150000 lb·in16.935 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416073 N/A 173000 lb·in19.532 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416414 N/A 1730000 lb·in195.325 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 417277 N/A 1798000 lb·in203164 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416471 N/A 180000 lb·in20338 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416481 N/A 19400 lb·in2192 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416074 N/A 219000 lb·in24725 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416472 N/A 220000 lb·in24.839 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416461 N/A 2200000 lb·in248.391 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416471 N/A 224000 lb·in25.290 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 415454 N/A 30000 lb·in3387 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416223 N/A 303000 lb·in34237 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416074 N/A 325000 lb·in36.693 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 417278 N/A 3284000 lb·in371073 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416477 N/A 392000 lb·in44067 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416068 N/A 420000 lb·in47418 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 416477 N/A 455000 lb·in51.372 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
N/A 417279 N/A 4555000 lb·in514689 Nm N/A Eaton-Airflex N/A Spring Applied, Air Release
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