Warner Electric PB-825 Heavy Duty

  • PB Series
  • Voltage: 6/24/90 VDC
  • Static Torque: 125 lb. ft.
  • Max RPM: 4,000 rpm
  • Shaft Size: .500 – 1.500

The PB Series brakes consist of a magnet, armature, and mounting hub in a very simple and extremely compact design.


Model NamePB Series PB-825 Heavy Duty
FunctionPrimary Brake
Max. Rated Torque125 lb.ft
Shaft Sizes.500 – 1.500
Max. RPM4,000 rpm
Standard Voltage6, 24, 90 DC
Outside Diameter8.75 Inches
Overall Length3.5 Inches
Manufacturer DrawingI-25566


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 PB-825 Users Manual / Installation Instructions
Quick InformationWarner Electric PB-825 HD Quick Information


(Please provide the following with your quote request)

1. Specify Bore Size for Item 2.
2. Specify Inside Mounted for Items 5A and 6A or Outside Mounted for Items 5B and 6B.
3. Specify Voltage for Item 6A or 6B.

Warner Electric PB 825 HD Quick Info
4. See Controls Section.

Warner MB Series Controls


PB-825 Heavy Duty Parts List
ItemDescriptionPart NumberQty.
1Armature Assembly5321-111-0011
1-2Splined Adapter104-00081
1-3Autogap Accessory5321-101-0061
1/2″ to 1-1/2″ Bore180-0002 to 180-0018
3Splined Hub540-00571
4Retainer Ring748-00061
5AMounting Accessory – I.M.5321-101-0011
5BMounting Accessory – O.M.5321-101-0021
6AMagnet – Inside Mounted1
6 Volt5311-631-002
24 Volt5311-631-003
90 Volt5311-631-004
90 Volt LK Facing5311-631-011
6A-1Terminal Accessory5311-101-0011
6BMagnet – Outside Mounted1
6 Volt5311-631-007
24 Volt5311-631-009
90 Volt5311-631-008
90 Volt LK Facing5311-631-012
6B-1Terminal Accessory5311-101-0011
7Conduit Box5200-101-0111