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For constant tension in web spooling applications.

Features
  • Self regulating. Constant tension from full to empty supply spool
  • Purely mechanical tension control, requires no electrical input
  • Long life under continuous slip conditions
  • Low drag torque during acceleration
  • High brake torque during deceleration
  • Smooth operation, free from jitter
  • Tension unaffected by slip speed
  • Minimizes material spillage
  • Torque ranges from 1 to 50 in·lb
  • Can be supplied as a complete system
Federal supply code - 15531
Tension Control System
Tension Control System - Dimensions
Unit of Measure
1 

Model No.

Upper Limit Torque (lb·in)

A (in)

B (in)

C - .0003

D - .0005

E (in)

H (in)

K (in)

VT-9 N/A 1 N/A .9500 N/A 1.12 N/A .1870 N/A .3750 N/A .63 N/A 1.05 N/A .90
VT-13 N/A 3 N/A 1.43 N/A 1.63 N/A .2500 N/A .6250 N/A .75 N/A 1.55 N/A 1.09
VT-16 N/A 6 N/A 1.75 N/A 1.87 N/A .3750 N/A .8750 N/A .75 N/A 1.88 N/A 1.21
VT-20 N/A 12.5 N/A 2.12 N/A 3.10 N/A .3750 N/A .8750 N/A .75 N/A 2.25 N/A 1.38
VT-30 N/A 50 N/A 3.24 N/A 5.13 N/A .5000 N/A 1.3750 N/A 1.25 N/A 3.24 N/A 2.40
Unit of Measure
1