Warner Electric MB-1225 Flange Mounted Normal Duty

  • MB Series
  • Voltage: 90 VDC
  • Static Torque: 260 lb. ft.
  • Max RPM: 3000
  • NEMA Frame Size: 284C & 286C or TC, 324C & 326C or TC, 364C & 365C or TC

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


Model NameMB-1225 Flange Mounted Normal Duty
FunctionBrake – Primary
Compatible Frame SizesNEMA C 284C & 286C/TC, 324C & 326C/TC, 364C & 365C/TC
Shaft Size.500 – 2.500
Max. Rated Torque160 lb. ft.
Max. RPM3,000 rpm
Standard VoltageDC 90
Outside Diameter13.75 Inches
Overall Length5 Inches
Manufacturer DrawingI-25614


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


pdf icon 1
CatalogWarner Electric Basic Design Clutches Brakes Catalog
Users Manual / Installation InstructionsWarner Electric MB-1225 Users Manual / Installation Instructions
Quick InformationWarner Electric MB-1225 Normal Duty Quick Info


1. Confirm Product Compatability
MB-1225 Adapts to NEMA C Face, Double Shaft Motors, Frame Sizes 284, 284 UC, 324 UC, 326 UC, 364 UC and 365 UC.

2. Specify Bore Size for Item 2 (Frame size determines bore).

Warner Electric MB 1225 Flange Mounted Normal Duty


3. See Controls Section
Warner MB Series Controls

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

Parts List MB-1000 Flange Mounted Normal Duty
ItemDescriptionPart NumberQty.
1/2″ to 2-1/2″ Bore180-0185 to 180-0217
3Armature Hub540-00141
5Magnet – 90 Volt5353-631-0011
5-1Terminal Accessory5311-101-0011
7Mounting Accessory5351-101-0031
8Drive Pin and Retainer5301-101-0014
9Mounting Accessory5321-101-0022
10Spring Accessory5303-101-0061