Screw Assembly Ball Screws
Description
Screw Assembly Ball Screws are mechanical devices designed to convert rotational motion into linear motion. They consist of a screw driven by a rotary motor and a ball nut with recirculating ball bearings that translate along the screw. This assembly is supported by thrust or angular contact bearings to handle axial and radial loads, ensuring precise and efficient movement.
Working Principle
Ball screws operate by using circular threads on both the screw and the nut, creating a helical raceway for ball bearings. As the nut or screw moves, the ball bearings roll through the raceway, pushing the screw or nut forward to generate linear motion. This design minimizes frictional losses, allowing ball screws to achieve an efficiency of 70% to 95%. The reduced friction also results in less wear and tear, extending the lifespan of the components.
Applications
Ball screws are widely used in various automation applications. They are essential in guiding, supporting, locating, and accurately moving components in systems ranging from small laboratory fluid pumps to large overhead gantry systems. Specific examples include CNC machinery, robotics, and precision assembly equipment, where high loads and close tolerances are critical.
Advantages over other Ball Screws
Ball screws offer several advantages over other types of screws, such as ACME screws. They provide higher efficiency due to minimal frictional loss, resulting in greater force, speed, and duty cycle ratings. Additionally, ball screws have a longer life cycle because the nut and screw threads do not make direct contact, reducing physical wear.
Limitations
Despite their advantages, ball screws have limitations. They are generally more bulky compared to lead screws due to the need for a mechanism to recirculate the balls. This can make them less suitable for applications where space is a constraint.
Considerations
When selecting a ball screw, several factors should be considered. Initial costs can be higher compared to other screw types, but the longer lifespan and higher efficiency can offset these expenses over time. Operating expenses are generally lower due to reduced maintenance needs. Durability is enhanced by the reduced friction and wear, but accuracy and repeatability requirements must be carefully assessed to ensure the ball screw meets the application's demands. Replacement and maintenance costs are minimized by the design's ability to allow for multiple repair options without full replacement.
from THK America, Inc.
Ball under load in the raceway cut between the screw shaft and the nut while receiving the axial load, traveling along the groove of a deflector embedded inside the nut to the adjacent raceway and then circulate back to the loaded area. [See More]
- Component Type: Screw Assembly
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 3.15 to 5.51
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 1.26
from RS Components, Ltd.
Min precision ballscrew assembly,250mm L [See More]
- Component Type: Screw Assembly
- Screw O.D.: 0.3937
- Length: 9.84
from THK America, Inc.
The nut bracket is standardized for standard ball screw assembly provided with finished nut shafts ends. This model is designed to be secured directly on the table using bolts. Since the height is low, it can be mounted on the tabel only using bolts. [See More]
- Component Type: Screw Assembly
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 3.94 to 7.17
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 3.15
from RS Components, Ltd.
Miniatue ball screw - Ø06 - lead 1- leng [See More]
- Component Type: Screw Assembly
- Screw O.D.: 0.2362
from THK America, Inc.
Ball Screws using a shaft ground to precision accuracy. [See More]
- Component Type: Screw Assembly
- Manufacturing Process: Ground Thread
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 1.57 to 3.35
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 3.15
from THK America, Inc.
A Stroke/Rotary unit that has ball screw grooves and a ball spline groove crossing one another on a single shaft. The nuts of the ball screw and the ball spline have dedicated support bearings directly embedded on the circumference of the nuts. [See More]
- Component Type: Screw Assembly
- Manufacturing Process: Ground Thread
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 1.26 to 4.09
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 1.97
from THK America, Inc.
A ball Screw that achives low noise, small torque fluctuations and long-term maintenance-free operation using THK's Cage Ball. [See More]
- Component Type: Screw Assembly
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 1.5 to 4.21
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 1.97
from THK America, Inc.
THK ball screws using a shaft that is roll-formed to high accuracy. [See More]
- Component Type: Screw Assembly
- Manufacturing Process: Rolled Thread
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 1.97 to 3.86
- Design: Metric Design Arrangement
- Screw O.D.: 0.6299 to 3.15
from THK America, Inc.
Support units are standardized for standard ball screw assembly provided with finished shaft ends and standardized for ball screws in general The support unit on the fixed side contains a JIS Class-5 compliant angular bearing provided with an adjusted preload. [See More]
- Component Type: Screw Assembly
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 0.4724 to 1.57
- Design: Metric Design Arrangement
- Screw O.D.: 0.1575 to 0.6299
from Hangzhou Chinabase Machinery Co., Ltd.
Ball Screw Set is now available. We can also provide you with roller chain and any chain attachments that you may need.In addition, we also offer OEM products – simply send us a drawing or sample and we'll provide you with a free quotation. [See More]
- Component Type: Screw Assembly
- Length: 1.38 to 2.56
- Design: Metric Design Arrangement
- Screw O.D.: 0.6102 to 1.56
from TPA Motion
SD Series ball screws are bi-directional ball screws that are a great choice when you need to move two ball nuts in opposing directions via one motor screw arrangement. These assemblies consist of a high quality ground screw with a left and right hand thread mated with two ball nuts. Accuracy grades... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 5.51 to 17.32
from Schneeberger Inc.
The precision-ground ball contact surfaces enable high positioning and repeat accuracy. Furthermore, a smooth, constant-torque running behavior is convincing. Interesting for demanding applications in machine tools as well as measuring and testing technology. Spindle and nut are precision ground. [See More]
- Component Type: Screw Assembly
- Length: 78.74
- Design: Metric Design Arrangement
- Screw O.D.: 1.26 to 2.48
from MPS Micro Precision Systems AG
Miniature precision ball screws. MPS standard ball screws are entirely made in stainless steel and all components are ground. They are fitted with a double nut to adjust the axial play. The manufacturing process guarantees a pitch variation of less than 5 µm over the full stroke. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 2.76
from Steinmeyer, Inc.
The company is located in Albstadt, in the south of Germany. With more than 450 employees, it is the leading competence center in Europe for the fully integrated manufacturing of high-precision ball screws.Experienced staff, constant dialogue with customers, and leading edge technologies make... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Milled Thread
from NSK Americas
NSK Ball Screws - NSK offers a complete selection of Ball Screws developed through friction control technology. Exceptional production and quality control techniques have enabled NSK to become the largest global manufacturer of ball screws. NSK products can be found in a variety of applications... [See More]
- Component Type: Screw Assembly
- Design: English Design Arrangement
from Nook Industries, Inc.
Lead accuracy of: ± 0.004 in/ft - Standard Rolled (SRT). ± 0.001 in/ft - Precision Rolled (XPR). ± 0.0005 in/ft - Precision Ground (SGT). Standard diameters from 3/8" to 4". (larger diameters up to 14"). Standard leads from 0.125" to 1.875". Alloy and Stainless Steel Screws [See More]
- Component Type: Screw Assembly
- Design: English Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 3.58
from Joyce/Dayton Corp.
Joyce/Dayton offers Ball screw and ball nut assemblies in a variety of screw leads and in diameters ranging from .631" to 4.000". Ball nuts and steel flanges are available for each screw size and lead. Choose the ball nut capacity that meets your application requirements. Several ball screws are... [See More]
- Component Type: Screw Assembly
- Length: 144
- Design: English Design Arrangement
- Screw O.D.: 0.6310
from Wedin International, Inc.
Wedin is the source for ball screws. We have the. ability to handle any of your production needs, from. high volume runs, to the most unique, one-of-a-kind. assembly. Standard or metric, we have what you are. looking for in a ball screw. Running two to three. shifts seven days a week, we have the... [See More]
- Component Type: Screw Assembly
- Length: 72
- Design: English Design Arrangement
- Screw O.D.: 0.7500
from Dynatect Manufacturing, Inc.
Dynatect precision ground ball screws are custom manufactured for new OEM designs as well as replacement applications. You are not "locked in" to a few ball screw and nut designs in a catalog. Our engineers will work with you to build your assembly to your exact specifications. New ball screw... [See More]
- Component Type: Screw Assembly
- Design: English Design Arrangement
- Manufacturing Process: Ground Thread
- Length: ? to 648
from Bosch Rexroth Corporation
Rexroth Precision Ball Screw Assemblies provide technical designers with diverse solutions for positioning and transport applications. Our precision rolled screw technology provides a variety of sizes and unparalleled quality from sizes 6mm up to 80mm diameters. Notable Features. Sizes from 6mm to... [See More]
- Component Type: Screw Assembly
- Screw O.D.: 0.2362 to 3.15
- Design: Metric Design Arrangement
from TPA Motion
Miniature Ball Screws are a very efficient (90-98%) way to translate rotary motion into linear motion versus lead screws that are typically less than 50% efficient. These high efficiency miniature metric precision ball screws are a very cost-effective solution for use in small or compact spaces. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Screw O.D.: 0.1181 to 0.6299
from Schneeberger Inc.
Ball screw actuator. Our focus is always on optimal precision and cost-effectiveness. To ensure these characteristics over the long term, the ball tracks, bearing seats and contact surfaces for the ball screws are precision ground. This enables optimum force transmission with a high degree of... [See More]
- Component Type: Screw Assembly
- Length: 394
- Design: Metric Design Arrangement
- Screw O.D.: 7.87
from MPS Micro Precision Systems AG
Miniature precision ball screws. MPS standard ball screws are entirely made in stainless steel and all components are ground. They are fitted with a double nut to adjust the axial play. The manufacturing process guarantees a pitch variation of less than 5 µm over the full stroke. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 3.94
from Steinmeyer, Inc.
For various aviation applications, Steinmeyer draws on a broad spectrum of cost-optimized products. These include various applications such as solutions for air-conditioning and door actuators. For actuators in various flap applications, Steinmeyer Aerospace offers a wide range of ball screw drives. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Milled Thread
from TPA Motion
Miniature Ball Screws are a very efficient (90-98%) way to translate rotary motion into linear motion versus lead screws that are typically less than 50% efficient. These high efficiency miniature metric precision ball screws are a very cost-effective solution for use in small or compact spaces. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Screw O.D.: 0.1575 to 0.5512
from MPS Micro Precision Systems AG
Miniature precision ball screws. MPS standard ball screws are entirely made in stainless steel and all components are ground. They are fitted with a double nut to adjust the axial play. The manufacturing process guarantees a pitch variation of less than 5 µm over the full stroke. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 5.51
from Steinmeyer, Inc.
Miniature ball screws are used for precision positioning in semiconductor, optics, medical instrument, and metrology applications. There are two different standard shaft styles, Type A and Type B, which are also available in different lengths. Steinmeyer offers miniature ball screws from 3 mm to 16... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Milled Thread
- Screw O.D.: 0.1181 to 0.6299
from TPA Motion
Miniature Ball Screws are a very efficient (90-98%) way to translate rotary motion into linear motion versus lead screws that are typically less than 50% efficient. These high efficiency miniature metric precision ball screws are a very cost-effective solution for use in small or compact spaces. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
from MPS Micro Precision Systems AG
Miniature precision ball screws. MPS standard ball screws are entirely made in stainless steel and all components are ground. They are fitted with a double nut to adjust the axial play. The manufacturing process guarantees a pitch variation of less than 5 µm over the full stroke. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 7.48
from Steinmeyer, Inc.
Ball screw nuts for shafts and with mounting dimensions per DIN 69051 or ISO 3408. All sizes come in three different flange shapes (full round, single flat or double flat) and different load capacities as a result of a different number of ball circles. We supply ball screw nuts as single nuts with... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Milled Thread
- Length: 1.54 to 8.11
from TPA Motion
Miniature Ball Screws are a very efficient (90-98%) way to translate rotary motion into linear motion versus lead screws that are typically less than 50% efficient. These high efficiency miniature metric precision ball screws are a very cost-effective solution for use in small or compact spaces. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Screw O.D.: 0.0709 to 0.6299
from Steinmeyer, Inc.
Rolled ball screws provides an excellent price-performance ratio. They are used for applications with lower requirements for efficiency and lifetime.Rolled ball screws from Steinmeyer are in most of the cases a highly attractive alternative compared with other driving solutions, like rack and pinion... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Length: 0.0 to 23.62
from TPA Motion
SRT Ball Screws and SSRT Series are precision rolled and incorporate an integrated drive-end journal. These are the choice when high linear accuracy (i.e., grades C7 or C10) and/or smooth movement is required. A rolling process is used to create the ball screw thread. An unfinished large diameter... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Length: 6.1 to 18.5
from Steinmeyer, Inc.
Steinmeyer provides a uniquely wide range of ball screws and is therefore at home in all application areas. We strive for an optimal price-performance ratio and the utmost in quality. [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Milled Thread
- Length: 3.86 to 12.2
from TPA Motion
Precision Ground Ball Screws (SG Series) are the choice when high linear accuracy (i.e., grades C3 or C5) and/or smooth movement is required. A precision grinding process is used to create the ball screw thread. The ball screw drive side is machined at the factory to making it ready for mounting... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Ground Thread
- Length: 2.76 to 23.62
from TPA Motion
Rolled ball screws (SR & SSR Series) are the choice when low cost is the main purchasing factor and high linear accuracy is not as important. A high quality proven rolling process is used to create the ball screw thread. Accuracy grades of C5, C7, and C10 are available. The ball screw is cut to... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Length: 3.94 to 39.37
from TPA Motion
PSRT ball screws as well as PSR are precision rolled C5 accuracy grade ball screws that are the choice when low cost yet high accuracy is desired. A high quality proven precision rolling process is used to create the ball screw thread. Accuracy grade of C5 is available The ball end journals are... [See More]
- Component Type: Screw Assembly
- Design: Metric Design Arrangement
- Manufacturing Process: Rolled Thread
- Length: 3.94 to 9.06