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SPIETH Locknuts
Series MSW - Metric, Large

Our CAD models will soon be available through the "CAD" button in the table below. If you would like to be notified when they become available, please tell us via this form.

Designation of a locknut with
d1 = M 72 x 1.5 and length = 60 mm:
Locknut MSW 72.60
The allowable axial loads specified in the table are guideline
values calculated with a safety margin of 1.6
— under static load, based on the minimum yield point,
— under dynamic loads, based on the minimum fatigue strength.

 

MSW size thread x length

Click Part # for CAD

 Dimensions in mm Clamp screws Allowable axial load Mass moment of inertia
d1

d1x pitch)

 d2 d3 h C d4 d5 Size n1 Ts dyn. stat J
ISO - H5 Qty SHCS Qty Nm Kn kN kg cm2
MSW 72 x 60 M 72x1.5 135 95 60 14 105 8 14 3,5 4 M4 2,9 4
MSW 85 x 60 M 85x2 160 110 60 14 124 8 15 3,5 4,5 M4 2,9 4






 

 

 

 

 

MSW size thread x length

Click Part # for CAD

 Preload set screw Lock screw Aluminum slug
Size

n d5 M01) Calculation factor A Size Length n3
SHCS Qty mm Nm mm SHCS mm mm Qty
MSW 72 x 60 M 10x45 8 7 34 0.76575 M 6x8 4.5 3 8
MSW 85 x 60 M 12x45 8 8.5 60 0.91282 M 8x8 6 3 8

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Because of friction, the larger MSW locknuts cannot produce the required axial preload using the nuts’ own tightening torque. Axial preload is provided with the set-screws in the nut body.