Custom Lead Screw features:

-Available in standard diameters from 1/8" (3.2mm) to 15/16" (23mm), with standard leads from .012" to almost 4" (0.30mm to 92mm) including metric and left hand threads.

-Custom sizes and leads are available upon request

-Stock screws are manufactured from 303 stainless steel

- Stock Screws are produced with Kerk's exclusive precision rolling process

-Positional bi-directional repeatability (with Kerk anti-backlash nut) is within 50 micro-inches (1.25 micron)

-Lead accuracy is better than 0.0006 in./in. (mm/mm)

-Lead accuracies are available to .0001 in./in. (mm/mm) with individual screw mapping optional (laser-interferometer verification)

-Kerk's total in-house manufacturing and quality control guarantee uniform and consistent products

http://www.kerkmotion.com/products/lead-screw/lead-screw.asp

To complement its extensive product range of precision ball screws manufactured to DIN standards, Steinmeyer, Inc. offers ground and rolled thread ball screws in custom styles to match existing designs. Shaft diameters range from an incredibly tiny 3 mm up to 125 mm, with a wide variety of available pitches. All custom ball screws can be configured with choice of nut style including single, pitch-shift and double nut executions. Our single nuts can be provided either preloaded, using ball oversize, or with some play. To produce the most compact nut design, Steinmeyer exclusively uses internal ball recirculation instead of tubes. Ball deflectors, manufactured from brass, steel or plastic in a special, computer controlled milling process, provide smooth motion and less wear on balls than external tube systems. The balls follow a CAD designed arc when crossing the screw's major diameter to enter the next thread groove, and are held in close contact with the screw surface.

The extreme low profile of our ball return inserts allows nuts to be designed with small body diameters. This enables the use of larger screw nominal diameters, while maintaining the same nut outer diameter, compared with conventional tube return nuts – offering a significant advantage in system stiffness. Custom ball screws may also include designs utilizing rotating ball nuts – which are ideally suited for Steinmeyer products since our ball nuts are inherently mass balanced - that is the ball deflectors are symmetrically located around the nut body.

The Steinmeyer group is comprised of two manufacturing divisions located in Germany. August Steinmeyer GmbH & Co. KG (located in Albstadt) has been setting standards for high precision ball screws for over 40 years and prides itself on high quality, innovative designs to meet demanding customer requirements. Our Feinmess Dresden (FMD) division has been producing an extensive line of high precision positioning systems for well over 130 years.

For further information on this new product or others in our extensive product portfolio

call 1-781-273-6220 or visit the Steinmeyer group at the following web site:

www.steinmeyer.com

Accurate Screw Machine (ASM) can supply all your captive screws and captive screw assemblies. They can manufacture custom designed electronics hardware from your specifications and ship your order in a week or less. Or choose from a wide variety of sizes, materials and finishes available in stock, usually shipped the same day.

ASM takes pride in manufacturing and delivering superior electronics hardware to exact specifications for every conceivable application. Whatever captive screw your application requires - binding, countersunk, fillister, flat, oval, hex, hex socket, pan head or knurled - in standard or metric sizes or as complete captive screw assemblies - Accurate Screw Machine can fill your order fast.

Visit ASM's online catalog today at www.accuratescrew.com, where you can enter your part specs, download a CAD drawing of the part, and request a quote.

Kerk Motion Products, one of the world's premier manufacturers of non-ball lead screws, bridges the price/performance gap in motion control applications. With multiple benefits, including low cost and precision performance, Kerk's non-ball lead screws create an exceptional value for designers and end users in a variety of industries.

For vertical applications, Kerk's non-ball lead screws can be designed to self-lock and prevent back driving, without an external brake, unlike traditional ball screws. Utilizing sliding friction between the nut and the screw to convert rotary input motion to linear output motion, Kerk's non-ball lead screws offer accuracy comparable to ground ball screws, at a cost savings up to 90%. Because the screws do not need to be hardened, they are more easily machined, contributing to overall low product cost. Kerk's lead screws are manufactured with their proprietary Kerkote® TFE coating, which eliminates the need for external lubrication and maintenance. Additionally, Kerk's screws provide quiet, reliable operation, with design flexibility.

Kerk offers lead screws manufactured from 303 stainless steel, produced with Kerk's exclusive precision rolling process. They are available in standard diameters from 1/8" (3.2mm) to 15/16" (23mm), with standard leads from .02" to 3" (.5mm to 76mm), a range unachievable with ball screws, including hard metric and left hand threads. Custom materials, sizes and leads are available upon request.

About Kerk Motion Products

Established in 1976, Kerk Motion Products, Inc. is one of the world's largest exclusive manufacturers of non-ball lead screws. The company, headquartered in Hollis, NH, develops internationally patented, anti-backlash designs and materials that provide high accuracy, unsurpassed repeatability, and long life in a full range of motion control applications. The company's production facilities include its own injection molding and moldmaking, CNC machine tools, and a quality control department utilizing real-time SPC. For more information about Kerk Motion Products and its lines of lead screws, screw rails, and linear rails, contact Kerk Motion Products, Inc.,

1 Kerk Drive, Hollis, NH 03049; Call 603-465-7227; Fax 603-465-3598. More information is available at www.kerkmotion.com.

http://www.kerkmotion.com

Nook Industries, Inc. manufactures custom ball screws, lead screws and ACME screws to match your specifications.

Precision Alliance - USA (The) manufactures custom ball screws, lead screws and acme screws to match your specifications.