Ball Screws for ISO(DIN) Standard to be released in April 2024
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"Ball Screws with Nut outer diameter conforming to ISO standard(ISO 3408-2 series1 / DIN 69051-5). Reinforced recirculating device and optimized Ball track of circulation improve reliability of rotational performance and durability. |
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[Features]
- Adoption of cutting-edge technology for picking up balls in the tangential direction.
- As part of our SDGs initiative, we have adopted M-thread Nuts and reducing disposal loss in the cutting process.
- Environmentally friendly design eliminates the need for adhesives.
- The lineup includes 10 models. Both Precision Ball Screws for positioning and Rolled Ball Screws for transporting are available.
[Catalog]
Please ask KSS about the details.
Gripper with Rotary Module RG To be released in June 2023
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"Rotation + Grip Module" that combines a Hollow Motor with an Encoder and an Electric Gripper. |
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[Features]
- The mounting direction of the Electric Gripper can be selected, and the gripping direction for the rotation axis can be selected.
- Passing the connection cable of the Electric Gripper through the Hollow Shaft of the Hollow Motor.
[Catalog]
Please ask KSS about the details.
Compact Electric Gripper To be released in September 2020
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Lightweight and compact Electric Gripper that uses the world's smallest class Bi-directional KSS Ball Screw in it. Even it is built in Ball Screw, the compact design, W62mm X H70mm (finger included) X D25mm is achieved. |
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[Features]
- Utilize KSS miniature technology to achieve compactness and weight reduction.
- The combination of Ball Screw, DC Motor and Linear scale utilizes multi-point positioning drive and grip force control.
- It can be mounted from 4 sides as a flexible design.
- This design enables customers to allow regular maintenance （Motor replacement, Greasing）
- Manual opening/closing operation is possible.
- Centering and dimensional measurement are possible （only with our designated Driver）.
[Catalog]
Please ask KSS about the details.
Compact Actuator NEMA 6 size To be released in April 2019
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The most compact single axis actuator in KSS with NEMA 6 size of 2 phase stepping motor. |
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[Features]
- Realized compactness not only the body width, but total length of the Actuator by combining NEMA6 Stepping Motor using our unique coupling-less connection.
- This Actuator is ultimately small size, so that it can be installed in very narrow space.In addition, it contributes compactness and light-weight design for your application.
[Catalog]
Please ask KSS about the details.
Linear Actuator MMB series To be released in June 2018
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This is the ultimate "All-in-One" products ntegrated Rotary Encoder,Servo Driver and Controller into the KSS Linear Actuator（External type） |
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[Features]
- Stepping Servo Motor is mounted directly onto the shaft end of a Ct7 grade Rolled Ball Screw,which is the best for space saving & high-speed, non-step-out operation.
- Enables to bind Rotary Encoder, Servo Driver and Controller within the Actuator body by simplified circuits due to high-speed operation processing of Servo and Controller using Digital Signal Processor.（ DSP）
- Enables to set parameters, servo control or control program through PC （RS-422/485 communication） by using exclusive software.
- The wiring is completed inside the Actuator, enabling significant saving in wiring.
[Catalog]
Please ask KSS about the details.
Linear Actuator DMB series To be released in April 2018
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Rolled Ball Screws built in 2-phase Stepping Motor achieve compact unit & superior cost performance. |
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[Features]
- Wide variety in Motor size, which are NEMA08(□20), NEMA11(□28), NEMA14(□35) and NEMA17(□42).
- 2-phase Stepping Motor is mounted directly onto the Shaft end of the Ball Screw, which is ideally constructed to form the Motor Rotor Shaft.
- Since combining the Motor Shaft and Ball Screw Shaft, Coupling-less, saving the total length can be achieved.
- High cost performance item provided by combining Rolled Ball Screw and 2-phase Stepping Motor.
- End journal profiles and travel length can be customized.
[Catalog]
Please ask KSS about the details.
High speed & high acceleration Ball Screws To be released in April 2017
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KSS launched High-speed & High acceleration Ball Screws with the best fit circulation of internal design for Ball Nut.6,000 min-1 & about 15G operation is possible under light weight condition. |
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[Flier]
Please ask KSS about the details.
DMB Actuator To be released in September 2016
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Compact Actuator by using Direct Motor Drive Ball Screw. |
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[Features]
- Shortening the total length by eliminating Coupling with using Direct Motor Drive type Ball Screw.
- Not only the Slider type (as picture above) but Cylinder type is also available upon request.
[Flier]
Please ask KSS about the details.
Belt Drive typeZθ/θ/VZθ Actuator To be released in oct 2013
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It's a Compact Actuator which takes advantage of BSSP (Ball Screw with Ball Spline) |
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[Features]
- It's a Compact Actuator which takes advantage of BSSP（Ball Screw with Ball Spline）
- Not only Linear motion (Z) & Rotary motion (θ), but also Vacuum (V) are possible
- Minimum number of components leads to simple design & saving space.
[Structure]
[Operating principle]
- Linea motion
For linear motion, drive the Ball Screw Nut by Z axis Motor through the Belt. In this case, Ball Spline Nut plays a role of slide guide & anti-rotating device. - Rotary motion
Turn the Ball Screw Nut and Ball Spline Nut at the same speed and direction, the shaft rotates without moving up & down. - Vacuum & blow
Bore Hollow can be multi uses. For example vacuum and blow function.
[用途]
- For transporting and positioning workpieces such as pick and place
[Catalog]
Please ask KSS about the details.
Hybrid typeZθ/θ/VZθ Actuator(ddA series) To be released in June 2013
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It's a Compact Actuator combined with BSSP (Ball screw with Ball Spline) + Hollow Motor. |
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[Features]
- It's a Compact Actuator combined with BSSP (Ball screw with Ball Spline)+ Hollow Motor.
- Not only Linear motion (Z) & Rotary motion (θ), but also Vacuum (V) are possible.
- Combination of the Hollow Motor and Normal Motor gives dramatically short length of the Z-θ(theta)Actuator.
- Minimum number of components leads to simple design & saving space.
[Structure]
[Operating principle]
- Linea motion
For linear motion, drive the Ball Screw Nut by Z axis Motor through the Belt. In this case, Ball Spline Nut plays a role of slide guide & anti-rotating device. - Rotary motion
Turn the Ball Screw Nut and Ball Spline Nut at the same speed and direction, the shaft rotates without moving up & down. - Vacuum & blow
Bore Hollow can be multi uses. For example vacuum and blow function.
[Catalog]
Please ask KSS about the details.
Precision Rolled Ball Screws(PSRT series) To be released in June 2013
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High accuracy (JIS C5) has been achieved by Rolled Ball Screw.We provide Rolled Ball Screws with high precision & better costperformance, which can be replaced with conventionalGround Ball Screw with C5 grade. |
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[Features]
- The conventional type of Rolled Ball Screws can reach the accuracy grade of Ct10 or Ct7.KSS newly developed the high grade accuracy of Rolled Ball Screw, which can achieve JIS C5 grade.
- Fixed side end‐journal can be set larger than nominal diameter of Screw Shaft, so there is no need to useCollar by press fit.
- End‐journal profile and dimension are standardized, so KSS Compact Support‐Unit can be installed.
- Since supported‐side end‐journal is unfinished, it is possible to do additional end machining with your requested thread length.
- The Axial play is set at 5um or less, but Zero backlash is possible by your request.
- Special end‐journal profile can be available as customized order.
[Catalogue Download]
Please ask KSS about the details.
AR/CL Cylinder(ddA series) To be released in autumn, 2012
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Introducing New Cylinder type Actuators followed by Z-theta type Actuators in ddA series, which are combined with 2-phase Hollow Stepping Motor and BSSP (Ball Screw with Spline). |
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[Features]
- Compact Cylinder with 2-phase Hollow Stepping Motor built in Ball Screw or Ball Screw with Spline (BSSP).
- Both Cylinder type actuator series are standardized with or without anti-rotating device.
- Slimmer body can be achieved by the anti-rotating equipped inside the Actuators.
- Many variety of Screw Shaft & Lead combination are available as standard.
[Line UP]
The New Cylinder type Actuator comes with 2 Motor sizes, □28 & □42. AR type with anti-rotating device or CL type without anti-rotating device can be selected in each Motor sizes.Variety of Shaft diameter & Lead allows wider selection of Accuracy and Thrust Force.
[Structure]
Ball Spline Nut in BSSP plays a role of anti-rotating device. No need to set up anti-rotating design outside the Actuator.
Our unique BSSP enable a compact and slim body by using Ball Spline Nut as an anti-rotating device.
Simple design of Screw Shaft in Hollow Motor. External anti-rotating device should be set up when usage.
[Variation]
| Drive Screw | Notation | □28 | □42 | |||
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| Lead | Travel | Lead | Travel | |||
| AR type | Precision Ball Screw | G | 1,2 | 40 | 2,5 | 50 |
| CL type | Precision Ball Screw | G | 1,2 | 40,80 | 2,5 | 50,100 |
| Rolled Ball Screw | R | 1,2 | 40,80 | 2,5 | 50,100 | |
| Resin Lead Screw | Re | 2,6 | 40,80 | 2,5 | 50,100 | |
[Catalogue Download]
AR/CL Cylinder
Please ask KSS about the details.
Direct Drive Actuator(ddA) To be released in Spring, 2012
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A compact Z-θ(Z-theta) Actuator featuring a Miniature Ball Screw with Ball Spline built into Hollow Motors. |
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[Features]
- It's a Compact Actuator combined with BSSP (Ball Screw with Ball Spline)+ Hollow Motors.
- Not only Linear Motion (Z) & Rotational movement (θ) but also Vacuum (V) are possible.
- No wear powder from belt & pulley because of Direct Drive structure.
- Minimum number of components lead to simple design & saving space.
[Structure]
[Model]
Motor Size : □42, Ball Screw spec. : Shaft Diaφ8, Lead 5mm & 10mm
Motor Size : □28, Ball Screw spec. : Shaft Diaφ6, Lead 6mm & 10mm
[Catalogue Download]
Motor size 42
Motor Size 28
Please ask KSS about the details.
Direct Motor Drive Rolled Ball Screws (2TMB series) September, 2011 launched
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Rolled Ball Screws bulilt in 2-phase Stepping Motorachieve compact umit & superior performance. |
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[Features]
- 2-phase Stepping Motor is mounted directly onto the end of Ball Screw Shaft, and the Ball Screw Shaft is idealy constructed to form the Motor Rotor Shaft.
- Since combining the Motor Rotor Shaft and Ball Screw Shaft, it eliminates the Coupling and the compact design of total length can be achieved.
- Superior cost performance by combination of Rolled Ball Screw and 2-phase Stepping Motor.
- Flexible length can be provided by the end journal turning.
- Stable mounting is secured by the exclusive supported unit.
- Drivers for 2-phase Stepping Motor & Accessories （mounting kits） are also available.
[Catalogue Download]
Please ask KSS about the details.
Support Units for Miniature Ball screws (Compact type) July ,2011 launched
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This type of Support Unit has features of light-weight & compact profile compared to our conventional Support Units. KSS believes this type is suitable for Miniature Ball Screws. KSS compact Support Units provide 2 choices of Housing type, which are Pillow type and Flange type. |
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[Features]
- By eliminating extra shape of Housing,and minimizing pitch of mounting holes, light-weight & compact design Support Units became reality.
- Pre-load controlled Angular Contact Bearings are installed, so Rigidity can be kept high.
- Reasonable price has been achieved with reducing number of components, because oil seals have been eliminated by using shielded type Angular Contact Bearings.
- Angular Contact Bearings are made from stainless steel and low contamination Grease is applied, so Support Units can be used in clean-environment.
- Ultra-compact size (Φ3) is standardized, it would be suitable for Ultra Miniature Ball Screws.
- Pillow & Flange type are standardized for both fixed & supported side, so wide variety of choices are available.
[Variation &Features]
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We have two types of model, "Pillow Type" and "Flange Type" to fit your installation.
●Pillow type
Light-weght & compact design have achieved, because of cutting extra shape.
This type can be used for KSS standard series of Miniature Ball Screws.
●Flange type
KSS has added Flange type Support Unit as our new line-up. This type can be mounted on wall surface, rather than base mounting. This type is also designed to fit KSS Standard Miniature Ball Screws.
[Catalogue Download]
Please ask KSS about the details.
Flex Actuator （FA Series） January, 2011 launched
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Many variation of KSS Flex Actuator became reality. Various choices among accuracy (Lead Screw type), speed (Screw Lead), Travel length and power (Motor type) are available. |
[Features]
- We make full use of features of Miniature Ball Screw manufacturer and super compact design Actuator can be achieved.
- Depending on kinds of Lead Screws, wide range of choices related to positioning accuracy are available.
- Several variations of Screw Lead & Travel for each Screw type are standardized. So wide variety of choice for speed is available.
- Motor-less type is our standard, but a couple of Motors are in stock as an option. Suitable Motor and Actuator would be assembled in accordance with your specifications.
- Recommended Motor Drivers for each Motors are also in stock.
- Accessories can be provided as special design, such as outside photo-sensor, Brake unit and so on.
[Structure]
- KSS Flex Actuator is the slider type Actuator, which is built in small size Lead Screw / Ball Screw and Slide Guide in it. KSS Flex Actuator series are standardized without Motor. It is designed to set the appropriate Motor easily based on the required specifications.
[Variation ＆ Features]
- Resin Lead Screw type
High cost performance type Actuator installed Resin Lead Screw. It can be used without oiling in normal environment for long term, because lubricating agent is incorporated in Resin Nut. - Rolled Ball Screw type
Reasonable price and accuracy have been achieved by using Rolled Ball Screw. - Precision Ball Screw type
High accuracy in both Repeatability and Lost motion by using Precision Ball Screw.
[Catalogue Download]
Please ask KSS about the details.
Miniature Ball Screw with Ball Spline (BSSP) April, 2010 launched
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This is the collaborated product by Ball Screw and Ball Spline manufacturing company focused on Hybrid, Compact and lightweight. |
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[Features]
- Ball Spline is processed on the Ball Screw shaft, it makes both Linear (Z) and Rotational(θ) movement possible at the same time with one unit.
- Air suction is also possible by bore hollow.
[Usage example]
- Once Ball Screw Nut directed to Motor turns, Ball Spline Nut will sustain not turning and Screw Shaft moves up and down.
- Once Ball Spline Nut directed to the Motor turns, the Torque will transmit to the Shaft and Screw Shaft will turns.
[Application example]
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Pick & Place 
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Scalar Robot 
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[Catalogue Download]
Please ask KSS about the details.
Inquiries/Contact us
KSS Co.,Ltd.
1-22-14 Yaguchi, Ohta-ku,
Tokyo 146-0093, Japan
Tel: +81-3-3756-3921
Contact us