3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket
3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket

3.5" Haydon Kerk BFW Kerkote TFE Coated Lead Screw w/ Berg GG33A21-36 Sprocket

$129.99 Save $-129.99
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Only 4 items in stock!
These were partially assembled for install but were never installed.  Unable to remove the sprocket from the screw.  They may have used something to make them difficult to remove.  The first 2 pictures are of the item you will receive.  The others are just to show what the screw looks like without the sprocket installed.

The Kerk BFW Series general purpose “free-wheeling” nut is for applications not requiring anti-backlash and wear compensation. It provides effective power transmission at minimum cost, and features long life, self-lubricating polyacetal Acme lead screw nuts. Kerkite Composite Polymers are also available as standard options. The secure mounting and convenience of a circular flange is standard on the BFW nuts with triangular flange and thread mounting as an option. Many custom configurations are available. Acme lead screws are 303 stainless steel with extended life, custom Kerkote TFE coating

These were a customized variant.  Total length is 3.5"(86mm), thread length is 49mm shaft diameter is 5mm

These have a dynamic load of 50lbs (20kg)

We have Berg gears that are a perfect fit for them (separate listing) as well as drive belts (polyurethane / wire) that are also a perfect fit.
We also have some slightly different lead screws by Kerk in separate listings.

Please see all pictures including tech layouts.

Thank you for looking!