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Rexroth Suppliers of 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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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 specifications 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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Ballscrew Manufacturer of spindle Ø 16 mm and Ø 25 mm
Linear Drives
rolled, hardened and
polished
material CF 53,
inductively hardened (HRC 60±2);
(for more detailed information,
see DIN 17212)
pitches:
2,5 / 4 / 5 / 10 and 20 mm
available in lengths up to 3,052 mm
shaft ends treated according to the isel-standards or customer-specifically
(see \"available lengths\")
made according to DIN 69051, part 3, type of tolerance 7 |
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The supplier of 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 manufacturers 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 supplier of 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 station tool.
We offer you expert repair of your ball screws, even other brands!
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RBC Precision Suppliers of ball screws offer the following features:
Lead Accuracy of 0.0005"
The actual lead of all the standard precision sphere bearing screws shown will be accurate within specific inches per foot cumulative, from the stated nominal lead, in classes 1, 3, 5, 7 and 9.
95% Efficiency
The high efficiency and reliable performance results from the rolling contact of supplier of bearing professional balls riding on an ultra-smooth, precision ground ball groove.
Wipers-a standard feature on units larger than 5/8" diameter.
Wipers at each end of the ballnut maximize performance by helping to spread lubricant over the screw thread and preventing foreign material from contaminating the ballnut.
Mounting Flange-Lubrication
Flush type or alemite professional fittings are provided at the outside diameter of the flange.
Controlled Backlash
The axial play in precision ball screws may be reduced to zero by preloading and a light, smooth operation is still possible. Therefore, both low torque and improved stiffness can be obtained simultaneously.
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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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N - Rotation of the screw is prevented by its permanent attachment to the load
V - Version V with anti-rotation device is recommended if the screw cannot be secured externally to prevent rotation
R - The travelling nut must be ordered separately |
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V1 BSS Series Supplier of 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 professional 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 movement. 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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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 supplier of 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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Find the whole of the range of the fluted shafts, with a broad choice of casings:
- Cylindrical with keyslot
- Cylindrical with slit
- Simple with support of fixing
- Double with support of fixing
- Simple Stage
- Stage tandem
- Stage tandem
- Casing translation-rotation
Deliverable in lengths standards of manufacture, half-compartments and machined
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BIKO lock type Linear Ball Spline is a linear movement rolling guide, featuring a industrial slide unit which performs endless linear motion along a spline shaft. Two rows of steel professional 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 suppliers of 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 professional piping, wiring or ventilation is needed.
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Rolled spindles manufactured by Ketterer:
- Metric ISO trapezoid thread
- Special threaded spindles (pre-loaded ball screw manufacturer, spindles, customer specific spindles, recirculating ball screw spindles, steep angle spindles, hollow tubes spindles
- Thread spindles (metric ISO)
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Kerk LEAD SCREWS are available in standard diameters from 1/8" (3.2mm) to 15/16" (23mm), with standard leads from .012" to almost 4" (0.30mm to 92mm) including metric and left hand threads. Custom sizes and leads can be special ordered. Most stock crews are manufactured from 303 stainless steel and are produced with Kerk's exclusive precision rolling process. Other materials are available on special order.
Positional bi-directional repeatability (with Kerk anti-backlash nut) is within 50 micro-inches (1.25 micron) and standard lead accuracy is better than 0.0006 in./in. (mm/mm). Lead accuracies are available to .0001 in./in. (mm/mm) with individual screw mapping optional (laser-interferometer verification). Kerk's total in-house manufacturing and quality control assure uniform and consistent products.
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With eLINE manufacturers of 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 equipment, complete with matching slotted nuts. Special attention was paid to the load capacity of the bearings supplier. For small screw diameters the bearing journal diameter was enlarged by friction splicer, 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.
Professional 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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Micro Mechanical System Components
microlinea® Precision Suppliers of ball screws Series ED
Description
Diameter, Screw 4,25 ... 13,6 mm
Diameter, Nut 10 ... 22 mm
Load Rating, Dynamic up to 2544 N
Load Rating, Static up to 1396 N
Axial Play 0-5 µm
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Miniature ball screws features:
Nominal diameter 6 to 16 mm
Lead from 2 to 5 mm
Nut with threaded end for easy mounting
High positioning accuracy
Optional wipers
Backlash elimination by oversize professional balls on request
Corrosion resistant screw
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The LPR Series is a rolled ballscrew offering a lower cost than ground ballscrews. Return tube or end cap recirculation systems are available and square nut designs are offered for ease of installation on these ball screws. Shafts are available in standard, off-the-shelf lengths or can be cut to length.
The HTF-SRC series ballscrew evolved from the best-selling HTF series ballscrew designed for heavy load applications such as injection molding machines manufacturer and other factory automation applications within the unit tool industry. They feature high speed and low noise. This ball screw series works effectively with heavy load driving machines that require high speed and high acceleration.
NSK's HMC series ball screw is specially designed to provide the high performance and speed required for machine tool applications. This ballscrew offers high speed linear motion, low vibration and noise, high rigidity, high load capacity, and compact nut design.
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| Spiracon is a high efficiency planetary roller screw which converts rotary motion to linear movement. Spiracon provides high dynamic load carrying capability up to 1200kN with high duty, life and positional accuracy ratings. |
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In wheel screws, the load is transmitted from the nut to the shaft through the barrelled surfaces of all the engaged industrial rollers . The diameter of the contact surface is substantially increased as is the number of points of contact.
Benefits
High load ratings (SR-SV)
Very high rotational speed (SR)
High acceleration and deceleration rates (SR)
Long life at high cycling rates (SR)
High reliability (SR-SV)
Resistance to hostile surroundings (SR)
Ability to survive shock loads (SR)
Small displacements with very good repeatability (SV)
Rotating the nut when speed becomes critical (SR)
Frequently removing the nut from the screw shaft (SR-most SV)
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FLI has a broad range of supplier of ball screws in order to be able to provide the system of adequate drive for linear motion which make it possible to carry out linear displacements rapid and precis.
Today, FLI has an important stock of ball screws of precision rolled in class C7 (53µm/300 mm) according to DIN standard 69051, which enables him to bring economic solutions with very short delivery periods.
FLI can also provide ball screws of precision in class C5 (18µm/300 mm) with a manufacturing lead time from 30 to 40 days according to the workload of the factory.
However, to optimize the delivery periods, we have certain dimensions in C5 class in stock.
FLI can deliver cut ball screws, ball screws with an annealing or ball screws machined according to plan.
The constant modernization of our park machines, makes it possible to optimize the delivery periods while reducing our production costs.
Also find the whole of the supports of ends for screw and the tables of machinings corresponding to each supports. |
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Ball screws
