The Rowland Company
4900 North 20th Street
Philadelphia, PA 19144
Toll Free: 800-925-8824   Phone: 215-455-4900    Fax: 215-455-8888
E-Mail: rowland@rowland2.com    Web site: www.rowlandcompany.com
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DBB Brakes

 
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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.



  Results 1 - 25 of 33 1 2 

Item #

Gear Part Number

Dynamic Torque Rating

Manufacturer

Actuation
146333 415313 7500 lb·in
847 Nm 		Eaton-Airflex Spring Applied, Air Release
146334 415314 14000 lb·in
1581 Nm 		Eaton-Airflex Spring Applied, Air Release
146380 416481 19400 lb·in
2192 Nm 		Eaton-Airflex Spring Applied, Air Release
146222 415454 30000 lb·in
3387 Nm 		Eaton-Airflex Spring Applied, Air Release
146337 415302 57000 lb·in
6435 Nm 		Eaton-Airflex Spring Applied, Air Release
146299 415900 53500 lb·in
6040 Nm 		Eaton-Airflex Spring Applied, Air Release
146300 416059 101500 lb·in
11459 Nm 		Eaton-Airflex Spring Applied, Air Release
146378 416304 149500 lb·in
16879 Nm 		Eaton-Airflex Spring Applied, Air Release
146379 416471 180000 lb·in
20338 Nm 		Eaton-Airflex Spring Applied, Air Release
146315 416073 115300 lb·in
13017 Nm 		Eaton-Airflex Spring Applied, Air Release
146327 416074 219000 lb·in
24725 Nm 		Eaton-Airflex Spring Applied, Air Release
146370 416223 303000 lb·in
34237 Nm 		Eaton-Airflex Spring Applied, Air Release
146381 416477 392000 lb·in
44067 Nm 		Eaton-Airflex Spring Applied, Air Release
146295 416068 420000 lb·in
47418 Nm 		Eaton-Airflex Spring Applied, Air Release
146296 416069 800000 lb·in
90320 Nm 		Eaton-Airflex Spring Applied, Air Release
146386 416241 1153000 lb·in
130282 Nm 		Eaton-Airflex Spring Applied, Air Release
146387 416464 1470000 lb·in
166101 Nm 		Eaton-Airflex Spring Applied, Air Release
146323 415900 80000 lb·in
9.032 Nm 		Eaton-Airflex Spring Applied, Air Release
146322 416059 150000 lb·in
16.935 Nm 		Eaton-Airflex Spring Applied, Air Release
146373 416471 224000 lb·in
25.290 Nm 		Eaton-Airflex Spring Applied, Air Release
146374 416472 220000 lb·in
24.839 Nm 		Eaton-Airflex Spring Applied, Air Release
146320 416073 173000 lb·in
19.532 Nm 		Eaton-Airflex Spring Applied, Air Release
146330 416074 325000 lb·in
36.693 Nm 		Eaton-Airflex Spring Applied, Air Release
146382 416477 455000 lb·in
51.372 Nm 		Eaton-Airflex Spring Applied, Air Release
146383 416470 585000 lb·in
66.049 Nm 		Eaton-Airflex Spring Applied, Air Release
  Results 1 - 25 of 33 1 2