With dissimilar materials in contact, namely high grade tool steel for the shaft and nut body and silicon nitride for the recirculating balls, micro-welding is prevented.
The extra cost option of ceramic balls is available in the following ball screw sizes:
6 mm (diameter) x 3 mm (pitch)
8 mm x 1 mm
12mm x 3 mm
16 mm x 5 mm
32 mm x 10 mm
40 mm x 5 mm
40 mm x 10 mm
Other sizes are available on request. Applications for hybrid ball screws include semiconductor production machines, inspection equipment, high precision grinders, medical devices and dental devices, aerospace robotics, and analytical equipment.
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.
New Micro Manipulator System by Steinmeyer
Posted Nov 19 2008
Filed under: X-Y Positioning Linear Stage
Burlington, MA - Steinmeyer, Inc. offers a new high precision micro manipulator stage MT 105-50-LM. Manufactured from high strength anodized aluminum, the standard table offers a travel of 50 mm and offers a positional accuracy of 1µm (micrometer), straightness/flatness runout of +/- 1µm and repeatability of +/- 0.2 µm. With a sleek low profile design, it has a footprint of 105 mm x 151 mm, height of 25 mm and weighs only 1.0 kg. Features include: preloaded cross roller bearings, fixed stops and incremental linear encoder with 0.1 µm resolution. This product can be provided as a XY stage without adapter plate and can also be configured as a XYZ system with an optional bracket. Ultra high vacuum, cleanroom or non-magnetic preparation is available on request.
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New Stepper Motor Driven Rotary Stage by Steinmeyer
Posted Oct 22 2008
Filed under: Rotary Actuator Stepper Motor X-Y Positioning
Steinmeyer offers a new ultra compact precision positioning rotary stage. The model DT 180-SM offers a sleek design with an overall height of 63 mm and length of 310 mm.
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New Low Profile Piezo Driven Rotary Stage by Steinmeyer
Posted Sep 19 2008
Filed under: Linear Motor Rotary Actuator Linear Stage
Steinmeyer offers a new ultra compact precision positioning rotary stage. The model DT 65-LM offers a sleek low profile design with an overall height of 25 mm and length of 105 mm. This rotary stage weighs only 0.35 kg, but can support loads up to 80 Newtons.
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Steinmeyer Offers Air Bearing Performance Without Air Bearings
Posted Jul 11 2008
Filed under: Bearings Linear Stage Mechanical Components
Steinmeyer announced an innovative, cost effective decoupling arrangement for ball screw drives that enables our standard PMT 160 series stages to achieve breakthrough performance - namely straightness and flatness runout of 50 nanometers or less! And we do it using mechanical cross roller bearings instead of large and expensive air bearings. The decoupling system isolates any transverse movement of the ball screw from the linear bearing system and saddle of the stage.
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New Precision Aerospace Grade Actuator Ball Screws Offered by Steinmeyer
Posted May 22 2008
Filed under: Actuator Ball Screw
Steinmeyer, Inc. announced a new high precision line of aerospace grade ball screws. Available in several diameters ranging from an incredibly tiny 3 mm to a much larger 100 mm, these aerospace screws are all manufactured from certified materials.
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New Low Profile Linear Motor Stage by Steinmeyer
Posted Apr 30 2008
Filed under: Linear Motor Linear Stage
Steinmeyer, Inc. announced a new low profile, high precision, linear stage model LT190-EDLM. Manufactured from high strength aluminum, the table is driven by an ironless core linear motor with travel ranging from 150 mm to 500 mm. Total table height is only 50 mm.
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New Precision Vertical Stage HT 16-LM by Steinmeyer
Posted Apr 04 2008
Filed under: X-Y Positioning
Steinmeyer, Inc. offers a new vertical positioning stage manufactured by its FMD division. The model HT 16-LM offers a travel of 16 mm with resolution of 33 nanometers and accuracy of 2 microns, making it ideal for wafer positioning! A compact piezo linear motor is used to drive a 3:1 ratio wedge. Precision crossed roller bearings ensure smoothness of motion and high rigidity. Manufactured from stable aluminum alloy, the HT 16-LM weighs 5.5 kg, and can support loads up to 50 Newtons!
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New Micro Manipulator System by Steinmeyer
Posted Feb 15 2008
Filed under: Robotics X-Y Positioning
Burlington, MA - Steinmeyer, Inc. announced a new high precision micro manipulator stage MT 130-50-DC.
Manufactured from high strength anodized aluminum, the standard table offers travel of 50 mm with positioning accuracy of 10 µm (micrometer), straightness/flatness runnout of +/- 1µm and repeatability of +/- 1µm. With a sleek low profile design, it has a square footprint of 130 mm x 130 mm, height of 43 mm and weighs only 1.8 kg.
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New Compact X-Y Stage by Steinmeyer
Posted Dec 18 2007
Filed under: X-Y Positioning Linear Stage
Steinmeyer, Inc. announced a new high precision XY linear stage model KT 310 – 210 – DC. Manufactured from high strength anodized aluminum, the standard table offers travel of 200 mm in both axes with positioning accuracy of 5 µm (micrometer), straightness/flatness of 3 µm and repeatability of +/- 1µm. With a sleek low profile design, it has a square footprint of 310 x 310 mm, height of 80 mm and weighs only 11 kg. Features include: preloaded cross roller bearings, precision ground ball screws, limit switches, and integrated dc motors with rotary encoders. With optional linear encoders, repeatability is +/- 0.1 µm.
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New Ultraminiature Ball Screws Available in Stainless Steel
Posted Nov 27 2007
Filed under: Ball Screw
Burlington, MA - Steinmeyer, Inc. offers an important addition to its standard line of miniature precision screws – the "world's smallest commercially available stainless steel ball screw." New ULTRAMINIATURE ball screws are available in stainless steel with diameters as small as 3 millimeter with choice of two pitches – 1 millimeter or 0,5 millimeter.. Steinmeyer now offers an extensive range of miniature screws in stainless steel from 16 mm diameter (with up to 30 mm pitch), down to this incredibly tiny 3 mm diameter. These products are manufactured especially for demanding applications in clean room, high vacuum or corrosive environments, The screws are equipped with one of four types of ball nuts, with or without preload.
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Steinmeyer Offers New High Speed Ball Screws with Elastic Spacers
Filed under:
Steinmeyer, Inc. announced a significant new option to its high speed ball screw product line – the UltraSpeed KES ball nut. By incorporating spacers between the balls and plastic tubes in the recirculating channels, Steinmeyer has succeeded in producing a ball nut specifically designed for applications demanding high speed capability as well as consistent pulsation-free motion at slow speeds.
As in our UltraSpeed nuts, that are increasingly popular among machine designers where compact design and high speed capability are important, the new UltraSpeed KES has dual ball return systems with deflectors. These deflectors guide balls in a tangential direction away from the shaft and into the return channels integrated inside the nut body.
Two important features reduce friction inside this new nut. First, the redesigned ball deflectors are compatible with Steinmeyer Elastic Spacers (ES) which are located in between the balls. And second, the ball return channels include plastic tubes.
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Steinmeyer Offers Ball Screws with Elastic Spacer Technology
Filed under:
Steinmeyer, Inc. announced an important advance in ball screw technology - the use of elastic spacers to separate recirculating balls inside the nut. The primary benefit of ball nuts with elastic spacers is the ability to achieve extremely fine and slow motion consistently, for example moving a distance of one micron per second.
Intermittent, short strokes, or frequent oscillations are conditions where balls in regular ball nuts tend to back up to each other, significantly increasing inter-ball friction and idling torque, potentially causing instability in the servo loop control. This is eliminated with Steinmeyer elastic spacers. Although offered now in some linear guideways, spacers have not been readily available in ball screws due to reliability concerns.
A flexible ball chain, ...
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