THK America, Inc.
Schaumburg, IL 60173 5340
Aug 31, 2004 With feed ratings to 200 m/min and permissible DN values to 210,000, Type SBK utilizes Caged Technology, which employs synthetic resin cage with curvature that cradles each ball and separates it from next. This helps decrease noise and dust generation, while overall design eliminates ball re-circulation tubes. For ball screw contamination protection, QZ Lubricator and Wiper Rings are available as options. Type SBK sizes range from 3636–5050.

SKF Motion Technologies
Bethlehem, PA 18017
Jul 14, 2004 Series SD Miniature Ball Screws feature internal recirculation inserts that promote smooth running and backdriving characteristics. They enable precise positioning for linear-actuation applications. Diameters range from 8–16 mm, leads from 2–5 mm, and screw shaft lengths up to 2100 mm. Options include safety wire devices, wipers, and corrosion-resistant materials and nuts with 2 to 6 circuits can be ordered.

Steinmeyer Inc.
Bedford, MA 01730
Jun 03, 2004 UltraThrust Precision Ground Ball Screws are offered in 50 x 20, 63 x 20, 63 x 30, 80 x 20, 80 x 40, and 100 x 20 mm sizes, all with 15 mm load carrying balls. UltraThrust 63 x 20 mm ball screw offers dynamic capacity of 430 kN, compared with 179 kN for standard series 1416 ball nut, which uses 11 mm balls. UltraThrust ball screws are suited for very large transfer line modules or to replace hydraulic drives in injection mold machines.

Steinmeyer Inc.
Bedford, MA 01730
Mar 31, 2004 Ball Screws use elastic spacers to separate recirculating balls inside nut, allowing them to achieve extremely fine and slow motion consistently. When nut is fully assembled, slight compression of each elastic spacer between 2 adjacent balls ensures sustained close guidance during recirculation inside nut. Hole in middle of spacer allows adjacent balls to touch in event of jamming, preventing cracking of spacers due to overload.

Steinmeyer Inc.
Bedford, MA 01730
Feb 20, 2004 Series SLS and SLF support bearing assemblies are available in 4 sizes with inside diameters of 6, 8, 10, and 12 mm; compatible with precision-ground miniature ball screws of Series 1112, 1214, 1412, and 1510 and their respective counterparts in rolled thread. Each assembly includes backlash-free, sealed, precision, duplex bearings, locknut, and housing in either pillow-block design or round unit with rectangular flange.

RBC Bearings (Corporate Office)
Fairfield, CT 06824
Dec 16, 2003 Extra-long, custom ball screws are available in several syles: hollow, with specialty plating and stainless materials, combined right- and left-hand thread, and with specialized drive methods such as splined journals, or gear-driven, rotating-nut designs. With available sizes in inch or metric, products can be supplied with internal or external ball returns, and special flanges and wipers are available.

SKF Motion Technologies
Bethlehem, PA 18017
Sep 09, 2003 SKF/TCM precision ground ball screw assemblies enable precise positioning of moving parts in computer-controlled machinery. No-tubing, internal return design incorporates balls in each circuit removed from raceway and returned by solid metal deflector pins. One-piece nut construction flanges provide built-in accuracies for concentricity, squareness, and straightness. Sizes range from 3/8 to 6 in. dia with leads from 0.100–1.000 in. and lengths up to 60 ft.

Techno-Isel
New Hyde Park, NY 11042
Jul 07, 2003 Precision rolled ball screws, matched with low-profile, anti-backlash ball nuts, are suited for linear motion applications. Screws are available with machined or unmachined ends in lengths up to 3 m, and 16 and 25 mm dia screws are available with leads of 2.5, 5, 10, and 20 mm. Suited for use where spoace is premium, standard lengths of 16 mm dia screws come with machined ends ready to be placed directly into machinery.

Steinmeyer Inc.
Bedford, MA 01730
May 16, 2003 Engineered for smooth, quiet motion at high speeds, Quiet Ball Screws minimize noise because nut uses end cap ball returns machined from plastic. Offered in 6 diameters from 5–20 mm and pitches from 2–32 mm, products are available with or without backlash and in choice of 2 accuracy grades: T5 ground thread and T7 rolled thread. Steinmeyer Combination Wiper system, consisting of labyrinth seals and felt wipers, protects against contamination.

PIC Design
Middlebury, CT 06762 1004
May 12, 2003 Ball Screws run at speeds of over 2,000 ipm and operate with normal efficiency between -65 and 300°F with suitable lubricants. Straightness is specified at 0.010 in. per foot TIR and will not exceed 0.025 in. TIR over length of screw. Ballnuts are offered in single circuit, dual circuit, and preloaded styles with max operating loads up to 1,650 lb. Ball Screws come in stainless steel and alloy steel in 3/8, 1/2, and 5/8 in. diameters, in lengths up to 72 in.

Steinmeyer Inc.
Bedford, MA 01730
Apr 08, 2003 ULTRAMINIATURE ball screws are offered in diameters as small as 3 mm, with choice of 1 mm or 0.5 mm pitch. Made from standard tool steel, screws are hardened and precision ground to meet ISO tolerances from T0 to T5. Nut types include: Series 1112 cylindrical with attaching thread, Series 1214 cylindrical with fitting key, and Series 1412 with flange. All include preload option. Series 1510 spring-preloaded, double nut compensates for torque variations.

Steinmeyer Inc.
Bedford, MA 01730
Jan 23, 2003 Ball screws with rotating nuts are suitable for automated machinery that operates at high speeds. Nuts are offered in 16 x 30, 32 x 40, and 65 x 80 sizes. Any ball nut can be modified and converted into rotating nut, by adding precisely ground bearing seat on outside diameter, together with lock nut threads.

Danaher Motion MCD
Amherst, NY 14228
Oct 01, 2002 Manufactured using PSF Technologyâ„¢, FineLine precision ball screws are available certified to ISO accuracy grade P3 (P5 and T5 grades are also available). Metric and English leads are offered in screw lengths up to 6 m, depending on diameter; diameters range from 12 to 80 mm. Matched ball nuts are offered in 4 flange styles. Applications include machine tools, robots, assembly and packaging equipment, and plastic molding machines.

Thomson Industries Inc.
Port Washington, NY 11050 2214
Sep 30, 2002 Miniature Ball Screws provide 95% typical efficiency. Standard diameter starts at 4 mm, with 1 mm lead, and will include 6 mm and 8 mm diameters as well. Manufactured as both rolled and ground units, ball screws come in precision classes from ISO3 to ISO7 (0.012/300 mm to 0.050/300 mm). They have nylon wipers to protect from ingress of contamination. Units can be supplied with ends machined complete to customer's specification.

Thomson Industries Inc.
Port Washington, NY 11050 2214
Sep 24, 2002 Ball Screws are assembled, packaged, and nitrogen purged inside laminar flow, Class 10 clean room environment. They are lubricated, bagged, and sealed to eliminate contamination and enhance shelf life. Custom clean room hollow and telescoping screws can be designed and built, in addition to stainless steel and chrome plated assemblies. Inch and metric sizes are available with preloaded and non-preloaded ball nuts.

THK America, Inc.
Schaumburg, IL 60173 5340
Sep 12, 2002 Type SBK ball screw achieves maximum feeds of 120 m/min and permissible DN value of 160,000. Utilization of Caged Technology prevents ball-to-ball contact and associated friction, and allows balls to smoothly circulate in tangential line. Cage also acts as reservoir for lubricants, eliminating need for external lubricating system. Optional wiper ring acts as barrier to prevent foreign matter and swarf from entering nut interior.

Thomson Ball Screws
Saginaw, MI 48602
Sep 12, 2002 Miniature Ball Screw provides 95% typical efficiency. Standard diameter starts at 4 mm, with 1 mm lead. Manufactured as both rolled and ground unit, it is also available in range of precision classes, from ISO3 to ISO7 (0.012/300 mm to 0.050/300 mm). Ball screw has nylon wipers to protect from ingress of contamination and can be supplied with ends machined to customer's specification.

THK America, Inc.
Schaumburg, IL 60173 5340
Aug 30, 2002 Available with diameters from 32 to 63 mm and leads from 10 to 20, Type HBN ball screw uses Caged Technology to act as reservoir for lubricants and eliminate need for external lubricating system. Ball screw achieves maximum of 130,000 DN. In heavy load durability tests (118 kN load, 48 mm stroke, 3.8m/min max travel speed), Type HBN performed 1,000,000 cycles without any problems.

Steinmeyer Inc.
Bedford, MA 01730
Aug 19, 2002 UNILOCK double nut design for large precision ground ball screws eliminates need for spacers or connecting hardware. Its method also eliminates backlash by using two nuts preloaded against each other and then locked using integral bonding system. With minimal number of parts, double nut eliminates angular errors in assembly of two nuts. UNILOCK system is available for ball screw diameters from 16 to 100 mm.

Steinmeyer Inc.
Bedford, MA 01730
Jun 17, 2002 UltraSpeed series ball screws, available in 16 to 63 mm dia, enable speed ratings to dN = 160,000. With lead to diameter ratios from 0.5:1 to 1:1, linear velocities of 4,000 ipm are possible at acceleration of 2 g and higher. Ball return system uses precision ball deflectors to guide balls into return channel spanning whole nut length. Two-piece deflectors, precision milled from steel, minimize friction, allowing higher speeds with less wear.