Warner Electric MB-825 Flange Mounted Normal Duty (Copy)

  • MB Series
  • Standard Voltage: 90 DC
  • Max Rated Torque: 80 lb. ft.
  • Max RPM: 4000
  • NEMA Frame Size: 254C & 256C or TC | 213C & 215C or TC

MB motor brakes are composed of a PB Series brake mounted on a NEMA C-face adapter and cover assembly.


Model NameMB-825
FunctionBrake – Primary
Compatible Frame SizesNEMA C Face 213C, 215C, 254UC, 256 UC.
Shaft Size.500 – 1.625
Max. Rated Torque80 lb. ft.
Max. RPM4,000 rpm
Standard VoltageDC 90
Outside Diameter11.5 Inches
Overall Length4.25 Inches
Manufacturer DrawingI-25572


Custom design brakes and clutches are user-assembled from standard components for optimum performance in the smallest possible package size.

  • Easily adaptable to any mounting requirement
  • Low initial cost
  • Wide range of models and options
  • 10 sizes from 1-1/4” to 15-1/4” diameter
  • 45 models of clutches, brakes and motor brakes
  • Torque range: 5 lb.in. to 1350 lb.ft.
  • Horsepower capability to 100 HP


pdf icon 1
CatalogWarner Electric Basic Design Clutches/Brakes Catalog
Users ManualSpline Drive MB-825 Installation Instructions


  1. Confirm Product Compatability
    (MB-825 Adapts to NEMA C Face, Double Shaft Motors, Frame Sizes 213 C, 215 C, 254 UC and 256 UC.)
  2. Specify Bore Size for Item 2 (Frame size determines bore).

3. See Controls Section

Please provide Bore Size (Bushing Part Number) & Control Option Model Number along with your quote request.