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Rexroth Ball Screw Assemblies do not only work with greater levels of accuracy and at higher speeds they can also be supplied at very short notice.
A wide range of precision screws and preloaded or adjustable-preload single and double nuts is available for all feeding, positioning and conveying tasks.
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The ball screws proposed by Elitec have various applications or precede the precision, rigidity, the sensitivity and the constancy of positioning. The production schedule includes/understands screws of very high precision has nets rectified as well as a range of screw with rolled nets. The screws are proposed according to DIN standard 69051, or customer plan.
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FLI has a wide range of ball screws to be able to provide adequate system for the linear movement.
Today, FLI has a large stock of ball screws :
- Precision rolled class C7 (53 μ m / 300 mm) according to DIN 69051. All the C7 class are on stock.
- FLI can also provide live high precision ballscrews Class C5 (18 μ m / 300 mm) with a deadline for manufacturing 30 to 40 days, depending on the workload of the plant.
However, in order to optimize the delivery time, we do have some class C5 in stock.
All the ballscrews are provided in standard lenght, cut and machining..
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Ballscrew Premier offers an increased range of screw diameters and pitches to suit a wide variety of applications.
Standard DIN nuts are available with rolled screws 16Ø to 50Ø on very competitive lead times as part of our RAPID DESPATCH PROGRAMME.
All single nuts are offered either play free or with controlled backlash. The same range is also available with a higher precision ground screw.
To further compliment the range there are high lead and miniature screws, the smallest miniature screw being 6mm diameter. All options can be supplied with ends machined to suit a standard range of fixed and supported end bearing housings or alternatively ends can be machined to customer’s requirements.
- Popular size rolled screws available on short lead times
- Rolled or ground screws for lower cost commercial or precision applications
- Standard range of DIN single nuts
- Range of high lead pitches for higher specification application
- Miniature screw diameters 6Ø and 14Ø available in rolled or ground
- Ends machined to suit standard range of housings or to specific drawing
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The ball screws isel are components of high-quality, precis and resistant to the wear, which transform the rotary movements into linear movements with tiny frictions. The output of these ball screws is at least of 90% (as comparison, the screws with acme thread have an average output of 50%). They have several channels of recirculation of balls, their number depends on the step of the nut. The ball screws isel have soaked and polished ways of bearing in which the balls practically roll without wearing what their ensure one long life of life.
The ball screws have starting torques definitely weaker than the screws with acme thread. In the ball screws, friction with starting is hardly higher than during operation.
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RACO's ball screws are ground all the way around in climate-controlled rooms. This is the only way that we can achieve the precision that we guarantee. The precision shape from precision grinding the ball nut and spindle profile gives it a significantly longer life than other mechanically processed ball screws. RACO's section geometry is monitor with profile projectors on a regular basis during production. That, and the fact that we have a free selection of ball diameters and numbers give us the possibility of measuring up to your requirements for maximum rigidity. We meet your requirements for highly precise ball screws both in single-piece production for new designs or repair and in series production.
RACO ball screws- the heart of your machine tool.
We offer you expert repair of your ball screws, even other brands!
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We offer a complete product range of high precision ballscrews, from the miniature ballscrews with 4 mm up to the big size with 120 mm. There is the right ballscrew for every application.
You can receive rolled ballscrew and also ground ballscrews.
Three different types of nuts which complement each other can be chosen, the cylindrical nut, the cylindrical nut with thread and the flange nut. They are available in precision P3, P5, P7 or P9, with axial clearance, without axial clearance or preloaded.
Our range is completed by support units for the fixation of ballscrews.
Advantages of our ballscrews:
• High efficiency
• Stick slip free and smooth running
• High speed
• Low mechanical wear
• Long and definable lifetime
• High reliability
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Ball Screw Drives
Ø 16 and Ø 25 mm
General
Ball screw drives made by isel are precise and abrasion-resistant drives with a good value for the money.
Here rotary motions are effectively and almost frictionless converted into linear movements with a repitition accuracy of less than 0.01 mm (related to a length of 300 mm).
The ball screw drives consist of hardened and ground ball screws Ø 16 mm and Ø 25 mm with pitches of 2.5/5/10 and 20 mm as well as hardened and grounded ball screw nuts. These have multiple ball recirculations.
Due to the special design of the ball screw nuts, the running of the ball screw drives can be adjusted free of clearance.
For this the ball screw nuts are fit into the respective clamping blocks and adjusted free of clearance by a setscrew.
The quality assurance of the ball screw drives takes place according to the international standards as well as the internal quality requirements. For this purpose, measurements like ball screw accuracy, pitch accuracy, etc. are done in air-conditioned QA areas at +20° C by using a 3D measuring machine.
Ball screws of different lengths with single- or double sided end machining are available on request.
Further accessories such as flange bearings, couplings and connection blocks make the programme perfect.
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For applications requiring linear movement, SIPCO offers a complete line of TechnoMotion® products. Please contact us for questions regarding our linear movement products, our inventory, or specific applications.
LINEAR ACTUATORS-ACME and Ball Screw
SCREW JACK-ACME and Ball Screw
BELT DRIVE-Precision Belt Pulleys
PRECISION BALL SCREWS-Ground, zero backlash
BALL SCREWS-Rolled Design
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- Featuring Caged Ball Technology
- Large load capacity
- High speed
- Higher positioning accuracy
- 2D & 3D CAD Drawings
- Featuring Caged Ball Technology
- DN Value of 160,000
- Long term maintenance free
- Lead: 20-36mm Diameter: 36-55mm
- 2D & 3D CAD Drawings
- High speed ball screw with Caged Ball technology
- Low noise
- Long term, maintenance free operation
- Low torque fluctuation
- 2D & 3D CAD Drawings
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ballscrews
Advantages | Range of Application
HIWIN ballscrews are used as driving elements an feeding devices. They are employed for theconversation of rotary motion into linear motion and vice versa. HIWIN ballscrews are available in any accuracy grades. Our ballscrews are technicallyfully developed and have been proving to be a success in practice for more than 20 years. Many customers use our know-how an order special developments from us. Due to our flexible production we are able to manufacture also individual items cost-efficiently..
2D/3D - drawings and product informations
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Since 1958 NSK has produced over one million ball screws and has become the world's largest ballscrew manufacturers. Whether you need a unique custom design for a demanding application or a standard off-the-shelf ballscrew offering ease of design and shorter lead times, NSK has the solution. Special material coatings and lubricants for harsh environments are available to customize your ballscrew.
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V1 BSS Series Ball Screws
This quiet, clean ballscrew features the same high speed and reduced noise output as the BSS Series ballscrew with improved sealing performance.
High performance seals deliver more than four times longer service life under contaminated environments when compared to existing ball screws. Specially profiled screw shaft grooves contribute to particle penetration that is reduced to 1/15 over existing ball screws.
Maintenance-free K1 Lubrication Units are standard on the ballscrews for extended product life in contaminated environments.
Noise output is reduced by up to 6 dB and the ballscrew features a 25% smaller ball nut diameter for compact spaces.
NSK's WFA Series ballscrews are precision ball screws designed for high accuracy and improved linear motion. They offer maintenance-free operation with K1 Lubrication Units. These ballscrews come in a range of sizes to meet the needs of most factory automation applications and have a variety of accessories to customize and enhance the life of your application.
The BSS Series ballscrew offers quiet operation and compact design. The average noise level is reduced by more than 6dB compared to our conventional ball screws and the ball nut is 30% smaller for compact spaces. The BSS Series ballscrew is the fastest ball screw on the market and is ideal for most factory automation applications.
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At NTN we have developed a bearing technology for ultra-high vacuum environments that employ solid lubricants. Meanwhile, with the development of process technology (as exemplified by semiconductor manufacturing in recent years), a need has arisen for vacuum environments that are not only durable, but also clean and corrosion resistant. In response to these requirements, we at NTN have developed new bearings especially suited for corrosive environments - as well as bearings for vacuums and ultra-clean bearings - and are working to consolidate our product line-up to enable us to respond competently to special or complex environments.
Ball Screws for Special Environments
All the parts, except the dustproof seal, are made of stainless steel.
Depending on the environment and operating conditions, the grease for the vacuum is enclosed or the surface treatment (the special PTFE coating or the Ag-ion-plating coating treatment) is processed.
The products can be used in the environment of low dust generation, in both clean air and vacuum, by processing the special PTFE coating treatment.
Plastic Sliding Screws
These models can handle a wide range of environments, with corrosion and heat resistance, by combining the Bearee Pl5010 nut with a stainless (SUS304) screw shaft.
Lower noise than stainless ball screws.
Higher screw effectiveness is obtained using a low-friction plastic nut.
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Rexroth Ball Screw Assemblies do not only work with greater levels of accuracy and at higher speeds they can also be supplied at very short notice.
A wide range of precision screws and preloaded or adjustable-preload single and double nuts is available for all feeding, positioning and conveying tasks.
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In our wide range, you are sure to find the product which fits exactly your requirements:
The miniature ball screws, either with ball recirculation by integrated tube or with inserts, are very compact. Backdriving makes them highly efficient.
The large ball screws enable you to select the right level of requirement: simple transport screws, very fast screws with long lead, or preloaded screws for more precision.
Ground ball screws for more rigidity and precision
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Inch Ball Screw Assemblies Chart
Nook standard cataloged inch ball screw and nut assemblies.
Metric Ball Screw Assemblies Chart
Nook standard cataloged metric ball screw and nut assemblies.
Custom Sort and Compare Ball Screw Assemblies
Sort Nook standard cataloged inch and metric ball assemblies by a category or view a side-by-side screw comparison. Select between inch or metric then a lead screw accuracy below.
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* The RS series of ball screw assemblies are designed to maximize performance, while providing design flexiblity. These assemblies utilize a rolled ball screw with preloaded or non-preloaded nuts. These steel ball screws are provided with precision machined steel supports for end bearing housings. The support housings are available in three styles (simple, fixed, and rigid). The fixed and rigid housings have precision machined shoulders that allow for a NEMA motor mount to be factory or field installed.
* The PS series of ball screw assemblies are designed to maximize performance, while providing design flexiblity. These assemblies utilize a precision rolled ball screw with precision ground preloaded or non-preloaded nuts. These steel ball screws are provided with precision machined steel supports for end bearing housings. The support housings are available in three styles (simple, fixed, and rigid). The fixed and rigid housings have precision machined shoulders that allow for a NEMA motor mount to be factory or field installed. Ball screw assemblies when used with ball nuts offer high efficiencies and long life, at an economical price.
* The GS series of ball screw assemblies are designed to maximize performance, while providing design flexiblity. These assemblies utilize a precision ground ball screw with precision ground preloaded nuts. These steel ball screws are provided with precision machined steel supports for end bearing housings. The support housings are available in three styles (simple, fixed, and rigid). The fixed and rigid housings have precision machined shoulders that allow for a NEMA motor mount to be factory or field installed.
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End bearings are available for our ball and roller screws in different versions:
- axially locating flanged housing with SKF angular contact ball bearings (back to back arrangement) FLBU (for ball screws) and FLRBU (for roller screws).
- fixed plummer housing (PLBU) for ball screws
- axially free plummer (for ball screws)
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Ball spline is a linear motion mechanism utilizing the rotational motion of ball elements.
It can be used in a wide variety of applications including robotics and transport type equipment.
Structure and advantage :
The ball spline consists of a spline shaft with raceway grooves and a spline nut. The spline nut consists of an outer cylinder (main body),retainer, side rings, and ball elements. Designed and manufactured to achieve a reliably smooth motion.
High Load Capacity and Long Travel Life:
The raceway grooves are machined to a radius close to that of the ball elements. The large ball contact surface results in high load capacity and long travel life.
Wide Variety of Configurations:
A total of 16 shafts with diameters ranging from 4mm to 100mm are available. Seven different types of nuts to 100mm are available. Seven different types of nuts are available:
- cylindrical types (SSP/SSPM),
- flange types (SSPF/SSPT),
- block types (SPA/SPAW/SSPB)
- Rotary ball-spline (SPR)
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BIKO lock type Linear Ball Spline is a linear motion rolling guide, featuring a slide unit which performs endless linear motion along a spline shaft. Two rows of steel balls are arranged in four point contact with the raceways. This design ensures stable high accuracy and rigidity in operations even under fluctuating loads with changing direction and magnitude or complex loads.
Features:
Interchangeable
All models in this series are interchangeable specification products. The dimensions of slide units and spline shafts are individually controlled, so that the spline shafts and slide units can be combined, added or exchanged freely.
Easy mounting
The slide unit is provided with threaded mounting holes for easy mounting on machines or equipment with bolts.
Stainless steel type
The stainless steel type has excellent corrosion resistance and is most suitable for machines and equipment used in clean environments, for example, medical equipment, measuring instruments, and semiconductor manufacturing equipment.
Hollow shaft
In high carbon steel type, hollow shafts are also available in addition to solid shafts. The hollow shafts are suitable for applications in which piping, wiring or ventilation is needed.
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- A medium duty cylindrical ball spline
- Zero angular backlash
- High rigidity and accurate positioning
- Compact design, simple assembly
- 2D & 3D CAD Drawings
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PowerTorq™ Ball Splines are convenient and efficient devices that allow friction free linear motion while transmitting torque. Because of their reliability and high efficiency, they are utilized to replace conventional splines. In a ball spline assembly, recirculating bearing balls carry the load between the rotating member (inner race) and the rotating/sliding member (outer race).
Inner races are made of high quality 4150 alloy steel, induction hardened to Rc 56-60. Outer races are made of hardened steel with ball tracks heat treated to Rc 58-60. Ball spline inner and outer races are protected with a black oxide finish.
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SBC Ground ball screw
New type of ball circulation SFA series
New developed resin return plate
High speed operation
Low noise
Resin return plate makes low friction noise
Applicable product-SFA(FA)
Quality control based on ISO 9001
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Rolled spindles manufactured by Ketterer:
- Metric ISO trapezoid thread
- Special threaded spindles (pre-loaded ball screw, spindles, customer specific spindles, recirculating ball screw spindles, steep angle spindles, hollow tubes spindles
- Thread spindles (metric ISO)
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The Change Nut is a sliding feed screw of 45° lead angle not easily available from machining. Its large lead angle is best suited to acquiring a quick traverse mechanism at a low revolution rate.
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Berg is a pioneer in the development of lead screws. Providing cost effective solutions to linear actuation problems. The close tolerance, free running nuts are ideal for miniature applications requiring rotary to linear or linear to rotary actuation.
For applications requiring precision positioning, Berg manufactures Anti-Backlash Nuts. Consisting of only three components, this device utilizes the constant force of a compression spring to push two nut halves apart. This action eliminates any play (backlash) which exists between the internal thread of the nut and the external screw thread. To ensure accuracy and repeatability, the nut can be fine-tuned by using many available spring constants, to meet any pre-load design requirements.
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Metric Lead Screw Assemblies Chart
Nook standard cataloged metric lead screw and nut assemblies.
Custom Sort and Compare
Metric Lead Screw Assemblies
Sort Nook standard cataloged metric lead assemblies by a category or view a side-by-side screw comparison.
- Repeatable positioning accuracy of 17.5µm / 25mm (Speedy Line) 6.25µm / 25mm (ISO Trapezoidal)
- Standard diameters from 5mm to 65mm
- Standard leads from 3mm to 200mm
- Alloy and Stainless Steel Screws
- Bronze and Plastic Nuts
- Flanges and EZZE-MOUNT™ end bearing supports are available for a complete lead screw assembly
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With eLINE ball screws it is now very easy to realize many different transport applications with standard products where customized solutions were often required up to now. eLINE ball screws are available ex stock, preassembled with nuts in screw-in or flange versions.
Unilateral screw end machining for the fixed bearing permits easy combination with LGL bearing units, complete with matching slotted nuts. Special attention was paid to the load capacity of the bearings. For small screw diameters the bearing journal diameter was enlarged by friction welding, thus increasing the load capacity of the end bearing arrangement.
Less stringent tolerances enable very economical solutions. For example, the mounted nut is always with clearance.
Seals are integrated as standard.
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tolerance of outside diameter of nut D +0 to -9 µm
max band width 5 µm
max eccentricity of the nut on the screw 10 to 16 µm
average efficiency value 80% to 92%
standard axial play 0 - 5 µm
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Ball screws
