Its simple and yet effective design offers a long life, low-maintenance linear positioning with efficiency, precision and control that will outperform hydraulic and pneumatic cylinder actuators in a very similar format.

The unit has IP65 rate and is designed for harsh environments. The T60 is based on the same successful design of larger T130 and T90 Precision Linear Actuator (PLA) models from Thomson (www.thomsonlinear.com) which both suit a wide range of industrial applications from pharmaceutical manufacture to electronics production, as well as from pick and place systems to packaging automation.

The Thomson T60 is available in the market with a choice of 25mm diameter precision ballscrews with leads of 50mm, 25mm, 10mm and 5mm repeatability with a pre-loaded single nut arrangement for backlash. Its maximum input speed of 3000rpm allows comprehensive choice of motor technologies from speed controlled stepper motors, DC motors or full positioning servo motors. A wide range of accessories also allow side-mount options complete with belt drive arrangements or inline mounting with couplings.

This new 28 mm diameter product was designed as a size compatible with the JIS standard. The ball screw is supplied with choice of two nut styles: single nut with flange series 1416; or double nut with flange series 1516. The ball nut is normally provided preloaded for zero backlash. The screw shaft is precision ground and offered in accuracy grades T0 to T5. Threaded length, journal details and overall length are per customer specification.

Steinmeyer
www.steinmeyer.com

Used in aerospace actuators around the globe, the ball screws offer internal ball return for smoother motion, higher speeds and very compact nut bodies.

The Steinmeyer Group
www.steinmeyer.com

This product line is an enabling technology, opening up a whole new range of designs. The Micro Series allows the miniaturization of products, reduced power consumption, and weight reduction without sacrificing performance or reliability. Developed in response to growing demands in many markets, Haydon Kerk has offered micro screws on a custom basis for more than 10 years. Now, with the introduction of the Micro Series, anyone can take advantage of standard designs, existing tooling, and quick delivery to bring their products to market swiftly and cost effectively.

The Kerk Micro Series Lead screws are available as stand-alone components and integrated into the high performance Haydon™ linear actuators. Manufactured of premium grade 303 stainless steel, Kerk Micro Series Lead Screw Assemblies provide exceptional performance, long life, and require no maintenance. High accuracy threads with superior uniformity deliver precise motion and reduce noise and vibration. Optional Kerkote® TFE coating, an exclusive dry lubricant, extends nut life while reducing friction and drive torque requirements.

Haydon Kerk Motion Solutions offers custom solutions and the Micro Series extends that capability. All screws are manufactured to customer specifications, to fit individual applications. And Haydon Kerk’s machining, mold making, and injection molding capabilities combine to produce the highest value solutions, whether the need is for a hundred, a thousand, or a million assemblies. Haydon Kerk Motion Solutions has engineering resources worldwide, available to assist in the application of these revolutionary products. Visit www.haydonkerk.com for more information, to request assistance, or to find your nearest source for Haydon Kerk products and support.

Haydon Kerk Motion Solutions, Inc.
www.HaydonKerk.com

Steinmeyer is a global leader in ball screw design and production. With 40+ years of experience in ball screw manufacturing, a proven variety of solutions, and EN 9100 (AS 9100) approved quality system our expertise is second to none in the global market.

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.

Steinmeyer
www.steinmeyer.com

Housed on a high strength aluminum beam and fitted with a stainless steel sealing band, the PSD80 uses Herculane wheels mounted to an adjustable carriage, offering long life and no re-lubrication. Single or multiple carriages on a unit are possible and can handle loads to 500N. A stainless steel lead screw provides actuation with pitch ranges of 4, 15, 25 and 70mm. The 25mm lead is particularly useful in Z axis applications, while the 70mm screw pitch satisfies the higher speed pick and place requirements and allows speeds up to 1 m/s and thrust loads to 300N. The lead screw is available in right and left handed threads and offers smooth, strong and precise actuation. A ball screw can be supplied for applications that require greater positioning accuracy.

PSD80 is supplied as a closed or open format dependent upon the application being subject to the ingress of dirt. The closed unit is rugged, tolerant of debris, and offers many mounting options while the open version is a lower cost solution that is compact, light, and has low friction. Where two units are to be used in parallel, a “slave axis” without the driving screw can be specified for both closed and open units. Adding to its flexibility, the PSD80 is available in a completely corrosion resistant version, as well as a double acting version for applications that require symmetrical movement from opposing carriages.

Bishop-Wisecarver
www.bwc.com

Typical uses include:

- laser machining
- inspection systems
- pick and place devices
- dispensing systems, and
- gene chip production equipment.

These stages (which may be completely customized) achieve the following standard XY specifications: travel is 600 mm X 600 mm, positional accuracy is 10 microns, positioning repeatability is +/- 1 micron, straightness and flatness is 1 micron. Both X and Y stages are driven by ironless, electrodynamic linear motors with maximum acceleration of 10 m/s² and velocity of 1000 mm/s. Position feedback is accomplished via an incremental linear encoder with a resolution of 50 nm. Typical Z stage performance includes: 25 to 200 mm travel; positional accuracy of 10 microns; and repeatability of +/- 1 micron. A separate motion control option is available based on customer specifictions.

Steinmeyer
www.steinmeyer.com

Nook’s Precision Screw Group originally developed the 8×6 BS as part of its Miniature Metric Ball Screw Development Project primarily for medical applications. The combination of small screw and high-precision, however, is also well suited for a myriad of broad-based light load applications requiring close positioning and fast speed including; military, optics, instrumentation, sensors, etc.

Nook’s 8×6 BS is manufactured using precision rolled technology instead of grinding − which significantly lowers cost without compromising precision. Custom ball screw end machining options are also available to accommodate custom motor/bearing combinations.

Nook Industries
www.nookindustries.com/8×6

Manufactured at the Herzogenaurach plant since 2007, Schaeffler’s energy efficient ball screw drive is being utilised on the electromechanical steering system for the Volkswagen Tiguan. Schaeffler supplies the ball screw drive to Volkswagen, as well as a toothed rack, which is partly designed as a spindle on which the drive is located. Ball screw drives are used to transform rotary motion into linear motion through a direct coupling between the drive element and the output element. In the Tiguan, the ball nut is driven by a servomotor, which is linked to the ball screw drive via a belt.

These low friction, low noise ball screw drives play an important role in helping to improve a vehicle’s fuel consumption and reduce CO2 emissions. As well as offering the driver optimised handling, the latest electromechanical steering systems can also reduce fuel consumption by as much as 3% compared to conventional hydraulic steering systems.

A key advantage of an electromechanical steering system over a hydraulic one is that the servomotors require energy only when specific steering manoeuvres are carried out, whilst hydraulic pumps need to maintain hydraulic pressure at all times, therefore demanding more energy. This means that pumps and feeds are no longer required on an electromechanical system, which reduces the space required for operating the steering system.

Other customers of Schaeffler’s first one million ball screw drives include automotive supplier TRW. The ball screw drives are not only used in Europe, but also on vehicles manufactured in the US by Volkswagen, Ford and BMW. The aerospace sector is another major user of high precision ball screw drives, which are often found in an aircraft’s tail steering system.

As Maria-Elisabeth Schaeffler commented: “Reaching one million ball screw drives is an incentive to be committed to keeping up the good work.” For 2010, Schaeffler has already secured orders for 1.2 million ball screw drive units. Orders for 2011 and 2012 amount to 1.9 million and 2.3 million units respectively.

“We are one of the leading innovators in this industry and we will continue to do all we can to convince our customers through our innovative capacity and quality,” said Dr. Christoph Löffel, Head of the Ball Screw Drives Product Line at Schaeffler.

Schaeffler
www.schaeffler.co.uk

Available in four nut styles, series 1112 single nut with connecting thread without wipers, series 1412 is a single nut with double flange and wipers on both ends, series 1214 is a cylindrical nut without wipers and series 2422 is our “quiet line” series, with a single nut that uses end-cap ball returns manufactured from plastic rather than metal tubes, making the screw virtually noiseless. All are available with leads ranging from 0.5 mm-3 mm and offer a maximum speed of 4500 RPM.

Steinmeyer
www.steinmeyer.com