Duff-Norton
Charlotte, NC 28241 7010
Oct 16, 2009 Screw and nut systems are comprised of tight tolerance acme and ball screw and nut assemblies with minimal backlash ratings. Materials of bronze, plastic, and steel are selectively chosen for wear resistance, and all ball screws are Manganese Phosphate-coated. Available screw diameters range from ½-9 in.

Nook Industries, Inc.
Cleveland, OH 44125
May 07, 2009 Offering load capacities from 40-100 lb, Small Diameter Metric Ball Screw Assemblies range in diameter from 6-12 mm with standard leads from 1-3 mm. Standard Rolled models offer lead accuracy of ±100 µm/300 mm, while Precision Rolled models provide ±25 µm/300 mm lead accuracy. Available in alloy, stainless, aluminum, titanium, and other exotic metals, assemblies are suited for robots, medical equipment, guided missiles, unmanned vehicles, and aerospace applications.

Misumi USA
Schaumburg, IL 60173
Oct 29, 2008 Suited for use in various machine and assembly positioning station builds throughout automation industry, Series BSL offers thread diameters of 8, 10, 12, and 15 mm with corresponding leads of 2, 4, 5, and 10 mm. Left-handed ball screws are built from induction hardened and carburized steel in lengths from 100-895 mm, configurable in 1 mm increments. All are fully RoHS-compliant, and may be ordered with various key groove options as well as 3 grease options.

THK America, Inc.
Schaumburg, IL 60173 5340
Jul 18, 2008 SBK Ball Screw employs THK Caged Technology, which promotes smooth operation as well as long-term, maintenance-free operation while also preventing collision noise between balls. Recirculation structure, where balls are picked up in tangential direction, and lead-angle direction by end caps makes this product suited for high-speed operation at DN value of 130,000. Models are available with screw shaft ODs from 15-32 mm and nut diameters from 38-58 mm.

Steinmeyer Inc.
Bedford, MA 01730
Jun 25, 2008 Manufactured from certified materials, aerospace-grade actuator ball screws feature internal ball return for smooth motion and compact nut bodies. Several diameters are available, from 3-100 mm, all capable of back driving. Custom configurations are also available. EN9100 certified quality control and documentation process offers full traceability and process control.

Steinmeyer Inc.
Bedford, MA 01730
Jun 25, 2008 Utilizing mechanical cross roller bearings for decoupling of ball screw drives, PMT 160 series stages achieve straightness and flatness runout of 50 nm or less. Decoupling system isolates any transverse movement of ball screw from linear bearing system and saddle of stage. Stages offer travel from 50-300 mm, with standard positioning accuracy of less than 10 µm and repeatability of ±0.5 µm when driven by dc servomotor or dc stepper motor.

NSK Precision America
Franklin, IN 46131
Jun 10, 2008 Providing maximum rotational speed of 5,000 rpm, Compact FA Series of ball screws are suited for spanning semiconductor, medical, factory automation, and general manufacturing industries. Lubrication is made possible via grease fitting, while 2 ports allow for maintenance or inclusion into integrated lubrication system. Ball screws feature sealing technology that minimizes grease dispersion and contributes to clean working environment.

Steinmeyer Inc.
Bedford, MA 01730
Jan 16, 2007 ULTRAMINIATURE ball screws are manufactured from 400 series stainless steel, hardened and precision-ground to meet ISO tolerances from T0-T5. Available with diameters as small as 3 mm with 0.5 or 1 mm pitch, products can be equipped with one of 4 types of ball nuts, with or without preload, and use internal ball deflector returns instead of external tubes to promote smooth, low-noise operation. Construction suits applications in clean room, high-vacuum, and corrosive environments.

Steinmeyer Inc.
Bedford, MA 01730
Mar 23, 2006 UltraThrust 100 mm dia ball screws with 25 mm pitch utilize 19 mm diameter load carrying balls to provide dynamic capacity of 841 kN and static capacity of 1,989 kN. Nut body measures 170 mm in dia with overall length of 290 mm. Precision ground ball screws are suited for use in injection mold machines and large transfer line modules.

SKF Motion Technologies
Bethlehem, PA 18017
Mar 03, 2006 Ranging from 25-50 mm dia with leads from 20-50 mm, Series SLT features rotating nut with axial play, while Series BLT includes backlash elimination. Design allows drive motor to move with nut to minimize inertia and achieve linear speeds to 110 m/min. Rotating nuts realize max transmissible torque up to 803 Nm and max transmissible axial load up to 162 kN, depending on type. Applications include packaging and automation systems, laser cutting, and production machinery.

SKF Motion Technologies
Bethlehem, PA 18017
Dec 20, 2005 Promoting precise positioning in linear-actuation applications, long lead ball screws feature ball circulation system that maximizes linear speeds and minimizes noise. Products have nut with axial play (Series SL) or backlash elimination (Series BL). Also available, rotating nut design (Series SLT and BLT) allows drive motor to move with nut, resulting in linear speeds to 110 m/min. Long lead ball screw diameters range from 25-50 mm, and leads range from 20-50 mm.

SKF Motion Technologies
Bethlehem, PA 18017
Sep 26, 2005 Suited for use in lab instruments, SD Series feature internal recirculation design for optimal repeatability and precise positioning. Design incorporates cylindrical nut with internal recirculation and threaded end to facilitate mounting. Offered in standard diameters from 8-16 mm with leads from 2-5 mm, products are also available as SDS series in stainless steel. Series can be customized with cut-to-length screws shafts, machined ends, and cylindrical or flanged nuts.

Precision Alliance, The
Fort Mill, SC 29708
Jul 01, 2005 At 1.8 mm, FBS series is precision-ground and can be provided with and without preload. Product is suited for applications requiring smooth motion and backlash-free positioning, such as semiconductor metrology, miniature surgery devices, micro surgery devices, as well as optical alignment and sighting devices.

Steinmeyer Inc.
Bedford, MA 01730
Mar 22, 2005 With design that avoids inter-ball friction and torque build-up at slow speeds, UltraSpeed KES ball nut incorporates spacers between balls and plastic tubes in recirculating channels. It also features dual ball return systems with deflectors that guide balls in tangential direction, away from shaft and into return channels integrated inside nut body. With dn rating of 160,000, product is capable of operating 40 mm dia ball screw at speeds to 4,000 rpm.

Steinmeyer Inc.
Bedford, MA 01730
Mar 03, 2005 Hybrid Ball Screws eliminate micro-welding in ball nut by using balls manufactured from silicon nitride instead of tool steel. Sizes include 6 mm dia x 3 mm pitch, 8 x 1 mm, 12 x 3 mm, 16 x 5 mm, 32 x 10 mm, 40 x 5 mm, and 40 x 10 mm. Applications include semiconductor production machines, inspection equipment, high precision grinders, medical and dental devices, aerospace robotics, and analytical equipment.

SKF Motion Technologies
Bethlehem, PA 18017
Jan 20, 2005 Featuring internal recirculation system design, Inch Series precision ground ball screws can be used to lift, lower, pick-and-place, and perform positioning operations for computer-controlled equipment. Non-tube internal return design incorporates balls in each circuit removed from raceway and returned to it by solid metal deflector pins. Series ranges in size from 3/8–6 in. diameter with leads from 0.100–1.000 in. and overall lengths to 60 ft.

Bosch Rexroth Corporation
Hoffman Estates, IL 60192-3707
Sep 24, 2004 Ball Screw Assemblies are offered with precision screws, zero-clearance preloaded nuts, or adjustable single nuts. Choice of seals provide wiping action and prevent fine dusts, chips, or coolants from penetrating nuts. Complete drive units with integrated ball screw assembly, plus matching pillow blocks and nut housings are available with screw supports for maximum linear velocity. Units are suited for feed, positioning, and transportation tasks in metalworking machines.

THK America, Inc.
Schaumburg, IL 60173 5340
Sep 03, 2004 Product incorporates vibration damper inside hollow ball screw shaft for improved positioning accuracy and lower noise levels. Available for ball thread shaft diameters from 16–50, it is interchangeable with all ball screw types.

THK America, Inc.
Schaumburg, IL 60173 5340
Sep 03, 2004 Measuring 976 x 540 x 300 mm, Type SNS300 LM Guide features 4-direction, equal load rating. Available in sizes up to 12025, Heavy Load Ball Screw Type HBN performs 100,000 cycles without problems when tested for durability under 118 kN load, 48 mm stroke, 3.8 m/min max conditions. Operation at higher ambient temperatures is identical at 20 and 80°C temperatures. Ball screw achieves increase in max nut rpm, 130,000 DN.

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.