Warner Electric SF-650 Flange Mounted

  • SF Series
  • Voltage: 6/24/90 VDC
  • Static Torque: 95 lb.ft.
  • Max RPM: 3,600 rpm
  • Shaft Size: .500 – 1.625

The SF design eliminates collector rings and brush-holder. Ideal for adverse environmental conditions. Mounting tolerances are generally more critical than the PC design.


Model NameSF-650 Flange Mounted
FunctionStationary Field Clutch
Shaft Size.500 – 1.625
Static Torque95 lb. ft.
Max. RPM3,600 rpm
Standard VoltageDC 6, 24, 90
Outside Diameter6.75 Inches
Overall Length3.50 Inches
Manufacturer DrawingI-25749


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 SF-650 FM Users Manual / Installation Instructions
Quick InformationWarner Electric SF-650 FM Duty Quick Info


(Please provide the following with your quote request)

1. Specify Bore Size for Item 5.
2. Specify Voltage for Item 6.
3. Specify Inside or Outside Mounted for Item 6.
4. See Controls Section.

SF-650 Clutch per I-25749 – 90 Volt, 1” Bore

Warner Electric SF Series 650 FM



Warner MB Series Controls


SF-650 Flange Mounted Parts List
ItemDescriptionPart NumberQty.
1Armature Accessory5181-101-0104
3Rotor Hub & Mounting Acc.5207-101-0051
1/2″ to 1-5/8″ Bore180-0326 to 180-0344
6AField – Inside Mounted1
6 Volt5207-451-009
24 Volt5207-451-012
90 Volt5207-451-011
6A-1Terminal Accessory5311-101-0011
6BField – Outside Mounted1
6 Volt5207-451-003
24 Volt5207-451-006
90 Volt5207-451-005
6B-1Terminal Accessory5311-101-0011
7Mounting Accessory5321-101-0021
8Conduit Box5200-101-0101