MB-19
MB19 Standard Locknut Part Number
This is the most popular series of metric washers that is coupled with KM series metric locknuts. Lockwashers engage a keyway in a shaft or adapter sleeve slot, then locks the accompanying locknut in position by bending one of the washer tabs into the nut’s outside diameter slots.
Features and benefits
- Fast and simple to use mating component to a locknut.
 - Specific sizes to accommodate metric applications.
 - Simple installation and removal.
 - Standard Locknut sets the industry locknut standard
 
- MB lockwashers have a 25 degree tang angle.
 - Can be mounted directly to the shaft or on an adapter sleeve.
 - A new lockwasher should be used each time the corresponding KM locknut and assembly is reinstalled.
 - Unless otherwise specified, manufactured from AISI grade 1020 series steel.
 - Most suitable for applications using cams, clutches, gears, pulleys, sprockets, and other general industry power transmission applications.
 
                                            | Dimensions | |||
|---|---|---|---|
| R | 3.74 | INCH | Bore | 
| E | 4.449 | INCH | Face Diameter | 
| B | 5.236 | INCH | Dia. over Tangs | 
| S | 0.394 | INCH | Key Width | 
| X | 3.602 | INCH | Inside Dia. | 
| NOTAN | 17 | INCH | No. of Tangs | 
| T | 0.394 | INCH | Tang Width | 
| Q | 0.071 | INCH | Material Thickness | 
| Weight | 15 | LB/100 | |