Lubrication Port Ball Screws
Description
Lubrication Port Ball Screws are mechanical devices designed to convert rotary motion into linear motion with high efficiency and precision. They feature a helical channel that allows ball bearings to circulate, reducing friction and wear. The lubrication ports are integral to the design, ensuring that the ball screw assembly is consistently lubricated to maintain optimal performance and longevity.
Working Principle
Lubrication Port Ball Screws operate by utilizing ball bearings that roll between the screw shaft and the nut. This rolling action minimizes friction compared to sliding mechanisms, allowing for smoother and more efficient motion. The lubrication ports are crucial as they provide a means to apply lubricant directly to the ball bearings and threads, reducing rolling resistance and sliding friction between adjacent balls. This lubrication is essential for maintaining the low friction advantage of ball screw assemblies, which is why they are favored in applications requiring precise and efficient motion control.
Applications
Lubrication Port Ball Screws are used in a variety of applications where precise linear motion is required. Specific examples include CNC machinery, where they are used to move cutting tools with high precision, and in robotics, where they enable accurate positioning of robotic arms. They are also employed in aerospace applications for controlling flight surfaces and in medical devices for precise movement of components.
Advantages over other Ball Screws
One of the primary advantages of Lubrication Port Ball Screws over other ball screws is their ability to maintain optimal lubrication, which enhances their efficiency and lifespan. The direct application of lubricant through the ports ensures that the ball bearings and threads are consistently coated, reducing wear and the risk of metal-to-metal contact. This feature makes them particularly suitable for high-duty cycle applications where consistent performance is critical.
Limitations
Despite their advantages, Lubrication Port Ball Screws have limitations. They require regular maintenance to ensure that the lubrication ports are functioning correctly and that the correct type and amount of lubricant is applied. If not properly maintained, the risk of contamination and wear increases, potentially leading to failure. Additionally, the initial cost of these ball screws can be higher due to the complexity of the lubrication system.
Considerations
When selecting Lubrication Port Ball Screws, several factors should be considered. Initial costs can be higher due to the advanced lubrication system, but this can be offset by the reduced maintenance and longer lifespan. Operating expenses may include the cost of lubricants and the need for a pump and metering system if oil is used. Durability is enhanced by the consistent lubrication, but accuracy can be affected if the lubrication system fails. Replacement and maintenance costs should also be considered, as improper lubrication can lead to increased wear and the need for more frequent replacements.
from THK America, Inc.
Ball Screw Assembly comes with the ball screw, nut bracket, support unit(s), and housing(s). The nut bracket is loosely assembled onto the ball screw nut. For the ball screw assembly series, lead angle accuracy is C5, axial clearance is 0 max (except BNK0810 = 0 to 0.005 mm), and the ball screw nut... [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.2362
- Length: 0.0394
- Screw Lead: 3.94
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3150
from THK America, Inc.
The right and left screws are provided with a phase in the middle of the ball screw nut, and an axial clearance is set at a below-zero value (under a preload). This compact model is capable of a smooth motion. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.6299
- Length: 0.1969
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3937
from THK America, Inc.
Using an end-cap method, this model achieve stable motion in a high-speed rotation. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.5906
- Length: 0.3937
from THK America, Inc.
The Rotary Ball Screw is a rotary-nut ball screw unit that has an integrated structure consisting of a ball screw nut and a support bearing. The support bearing is an angular bearing that has a contact angle of 60 degree, contains an increased number of balls and achieves a large axial rigidity. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.6299
- Length: 0.6299
from THK America, Inc.
The simplest type with a single ball screw nut. It is designed to be mounted using the bolt holes drilled on the flange. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.6299
- Length: 0.1969
from THK America, Inc.
To meet the space-saving requirement, this type of Ball Screw has a standardized screw shaft and a ball screw nut. The ends of the screw shaft are standardized to fit the corresponding support unit. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.1575
- Length: 0.0394
- Screw Lead: 3.94
from THK America, Inc.
To meet the space-saving requirement, this type of Ball Screw has a standardized screw shaft and a ball screw nut. The ends of the screw shaft are standardized to fit the corresponding support unit. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.1575
- Length: 0.0394
- Screw Lead: 3.94
from THK America, Inc.
The Ball Screw/Spline is a linear-rotary unit that contains Ball Screw grooves and Ball Spline grooves crossing with each other 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. The Ball Screw/Spline... [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.3150
- Length: 0.4724
from THK America, Inc.
The Ball Screw/Spline is a linear-rotary unit that contains Ball Screw grooves and Ball Spline grooves crossing with each other 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. The Ball Screw/Spline... [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.6299
- Length: 0.6299
from THK America, Inc.
Since the mounting screw holes are machined on the square ball screw nut, this model can compactly be mounted on the machine without a housing. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.5512
- Length: 0.1575
from THK America, Inc.
This Rolled Ball Screw feed achieves a DN value of 100,000 by using a new circulation structure. Since the nut outer diameter and the mounting holes of this model are dimensionally interchangeable with the previous model BTK, model BTK can be replaced with this model. More detailed specifications... [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.5512
- Length: 0.1575
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3150
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3937
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3150
from THK America, Inc.
The Support Unit is compactly designed to accommodate the space in the installation site. As the bearing is provided with an appropriately adjusted preload, the Support Unit can be assembled with a Ball Screw unit with no further machining. More detailed specifications are available in our digital... [See More]
- Design Features: Lubrication Port
- Screw O.D.: 0.3937
from THK America, Inc.
A miniature type with a screw shaft diameter of 4 to 14 mm and a lead of 1 to 5mm. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.1575
- Length: 0.0394
from THK America, Inc.
A miniature type with a screw shaft diameter of 4 to 14 mm and a lead of 1 to 5mm. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.1575
- Length: 0.0394
from THK America, Inc.
The outer diameter is up to 30% more compact than previous THK products, and the nut dimensions conform to DIN standards. Newly developed ball circulation components contribute to high-speed operation. The shaft ends are machined to fit with THK ’s standard support units(BK/BF, EK/EF, and... [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.3937
- Length: 0.1969
- Screw Lead: 19.69
from THK America, Inc.
Using an end-cap method, this model achieve stable motion in a high-speed rotation. More detailed specifications are available in our digital catalog. [See More]
- Design Features: Lubrication Port; Right Hand Thread
- Screw O.D.: 0.5906
- Length: 0.7874
from NSK Precision America
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... [See More]
- Design Features: Zero-Backlash Design; Lubrication Port; Right Hand Thread (optional feature); Left Hand Thread (optional feature)
- Manufacturing Process: Ground Thread
- Component Type: Screw Only
- Design: Metric Design Arrangement
from NSK Precision America
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... [See More]
- Design Features: Lubrication Port
- Manufacturing Process: Ground Thread
- Component Type: Screw Only
- Design: Metric Design Arrangement
from NSK Precision America
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... [See More]
- Design Features: Zero-Backlash Design; Lubrication Port; Right Hand Thread (optional feature); Left Hand Thread (optional feature)
- Manufacturing Process: Ground Thread
- Component Type: Screw Only
- Design: Metric Design Arrangement
from NSK Precision America
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... [See More]
- Design Features: Lubrication Port
- Manufacturing Process: Ground Thread
- Component Type: Screw Only
- Design: Metric Design Arrangement