Generation II Wedge Chuck Assemblies & Component Parts

NP-100-R G II Wedge Chuck Assembly for Work Spindles & Burring Spindle
NP-100-2-R G II Outer Housing
NP-100-3-R G II Inner Sleeve
NP-100-5-R G II Pressure Collar
NP-400-R G II Matched Set of 9 Wedges
NP-100-4 Key 1/8" X 1"
NP-500 Plug Screws
NP-510 Assembly Screw
NP-28 Wedge Chuck Lubricant
NP-30 Wedge Chuck Grease Applicator Nozzle
NP-7584-Z Lubrication Applicator


NP-MB-635-13 Short Extension
5080-2103 Oversized Inner Spindle - 2 Slot
5080-2103-9 Oversized Inner Spindle - 3 Slot


The major reason for the tremendous success of the Wedge Chuck System is the patented Rocking Wedge as illustrated . Please note the angles and radii which permit them to rock free.


G II Wedge Chucking System

Design improvements to the patented Wedge Chuck
Assembly facilitate smother closing action and
insure the greatest holding capacity.

A simple change to the form of a radius substituted for an angle on the Inner Sleeve (NP-100-3-R)
coupled with a New Wedge design has producedthe

The GII is the
most efficient and productive chucking sysem known.



CCCComparison Of Chuck System Holding Power

Chuck System
Holding Power (ft. lbs.)
Nowak Generation II 31.0
Fulcrum (lever) System 29.0
Davenport Barrel Chuck 26.5

Closing Method
  • Mechanical power closer used.
  • 5/8 drill rod bar with round collet surface and hex driver.
  • Standard collet.
  • Apply torque to cause bar to rotate in collet.
  • Uniform pretension of the chuck.


This patented wedge in conjunction with rigorous process and quality control of the remaining conponents create a precise working and long last Wedge Assembly. The Wedges are manufactured by the precise process offered by the powered metals industry. The remaining components are made of hardened bearing steel.

After meeting stringent quaulity standards, the components are carefully assembled, greased, and packaged as a unit for immediate shipment. Technical advise on the installation and function of our product is only a phone call away.