NSK

Ball Screws, Linear Guides, Monocarriers and Direct Drive Motors

NSK is a world-class producer of ball and roller bearings, with over 80 years experience in design, development and manufacturing of nearly every kind of anti-friction bearing.

Linear Guides

NSK recirculating roller ball linear guides are designed to assure smooth travel and superior rigidity.Linear guides deliver greater rigidity and higher load capacity than shaft and bushing designs NSK linear guides are available off-the-shelf in a selection of accuracies, pre-loads, coatings and lubricants.

  • Degassed, purified steels reduce stress deformation, maintain precise tolerances
  • Reference surface and ball grooves are ground simultaneously for matched accuracy
  • Special procedures straighten and measure rails concurrently for unsurpassed rectilinear path
  • Simplified installation reduces assembly time and cost
  • Gothic arch design permits accurate measurement of groove profile for precise straightness
  • Greater contact area delivers superior rigidity and reduced wear over single point roller bushings for longer life
  • Gothic arch permits variations in design to alter level of friction to accommodate application damping requirements
  • Square rail design protects roller path as opposed to exposed shaft surface
  • Accurate positioning enhanced by low friction differential between dynamic and static friction
  • Reduced friction runs cooler permitting high speed operation

iconLinear Guides Technical Specs

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LA Series

Compact series. Designed to provide high speed, high-load capacity and super-high rigidity. Three groove design more...

Compact series. Designed to provide high speed, high-load capacity and super-high rigidity. Three groove design.

Compact series. Designed to provide high speed, high-load capacity and super-high rigidity. Three groove design.

  • Features six ball row design
  • Offers up to 1.5 times the rigidity and load capacity of conventional four row designs
  • Load capacity is equal from all four directions
  • Offers superior damping to conventional four row designs while maintaining a moderate friction force
  • Available with medium and heavy pre-loads
  • Eight carriage styles available for mounting
  • Four accuracy grades available down to three microns for one meter of travel
LH Series

Self aligning, high load capacity. Gothic arch groove and contact angle of ball produces low friction two-point contact under general load, increased displacement for four-point contact under impact load more...

Self aligning, high load capacity. Gothic arch groove and contact angle of ball produces low friction two-point contact under general load, increased displacement for four-point contact under impact load.

Compact series. Designed to provide high speed, high-load capacity and super-high rigidity. Three groove design.

  • Industrial grade accuracy
  • Interchangeable carriages with ball retainer system
  • High load capacity
  • Six carriage styles for size and load considerations
  • Universal mounting holes for flange type carriages
  • Self-aligning capability
  • Preload or clearance style
  • Available in stainless steel
LU Series

Miniature series. Designed for compactness and energy savings. Single groove design with ball retainer system more...

Miniature series. Designed for compactness and energy savings. Single groove design with ball retainer system.

  • Rail widths of 5 to 15mm
  • Stainless steel and carbon steel as standard
  • Four accuracy grades available down to two microns per 100mm parallelism
  • Two preload grades
  • Interchangeable carriages with ball retainer system

Ball Screws

NSK uses the highest quality materials, proven techniques and superior manufacturing equipment and maintains the highest possible quality control standards covering every aspect of the manufacturing process. NSK ball screws are precision machined, assembled, and inspected in a constant temperature-controlled environment ensuring the highest precision and quality. Every ball screw is subject to laser measured dimensional inspection, torque measurement and sound testing. High quality vacuumed degassed steel ensures even hardening; specialized heat treating procedures stabilize lead accuracy and suppress aging deformation. Special materials coatings and lubricants for harsh environments are available.

Rolled Ball Screws more...

Standard Rolled Ball Screw Series

  • Lower cost than precision ground ball screws
  • Over 60 metric design styles are available
  • Variety of diameters from 10mm to 50mm and leads from 3mm to 50mm are available
  • Return tube or end cap, for high feed rates, re-circulation systems are available
  • Square nuts for ease of assembly
  • High leads are available
  • Metric dimensions
  • 6 basic nut styles
  • Over 60 shaft and lead configurations
  • Shaft diameter range from 10mm to 50mm
  • Leads range from 3mm to 50mm
  • Tube type recirculation for fine leads and end cap recirculation for high and ultra high helix leads
  • Manufactured to higher run-out tolerances than called for in JIS B1191 standards for C10 accuracy ball screws
  • Shafts available in standard off-the-shelf lengths or can be cut to length

Inch/Metric more...

Inch/Metric Ball Screws

  • Over 250 part numbers are available with finished or blank shaft ends
  • Available in 4 basic nut designs
  • U.S. production allows for reduced lead-times
  • Variety of diameters from 0.47" to 1.26" for the machined shaft end group and .472" to 1.97" for the unmachined shaft end group
  • Leads from 0.2" to 1.00" are available
  • Available in JIS C3 (0.00031" per foot) or JIS C5 (0.00071" per foot)
Standard Off-the-shelf Metric Ball Screws
  • Largest selection in the industry with over 500 different part numbers available
  • Available with machined and unmachined shaft ends for ease of design
  • A variety of nut designs is available with finished machined or blank shaft ends
  • Ball nuts are available with tube, deflector or end cap re-circulation systems
  • Labyrinth seals for superior performance
  • Variety of diameters from 4mm to 50mm and leads from 1mm to 50mm are available
  • Available in JIS C3 (8 microns per 300mm) or JIS C5 (18 microns per 300mm) accuracy standards
  • Standardized stainless steel series available for higher corrosion resistance

iconBall Screws Technical Specs

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Monocarriers

The NSK Monocarrier combines the benefits of ball screws with the load carrying function of linear guides available for standard, maintenance-free and high-rigidity applications.

  • Cold drawn steel channel rail with ball tracks ground in each wall which surround a screw shaft

  • Carries one or more carriages containing a ball screw nut in a load carrying platform

Miniature Monocarrier MCM02

The latest offering in NSK's popular Monocarrier Series of linear actuators is the Miniature Monocarrier MCM02.  Like the other sizes in the Monocarrier Series, the MCM02 provides an all-in one combination of ball screw, support units and special linear guide that dramatically reduces the time and energy needed in the design of systems and simplifies installation and assembly. more...

iconE3416 Miniature Monocarrier MCM02-03 Catalog

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NSK: Miniature Monocarrier MCM02

The latest offering in NSK's popular Monocarrier Series of linear actuators is the Miniature Monocarrier MCM02.  Like the other sizes in the Monocarrier Series, the MCM02 provides an all-in one combination of ball screw, support units and special linear guide that dramatically reduces the time and energy needed in the design of systems and simplifies installation and assembly.

  • Basic Dimensions: 22mm x 28mm (height x width)
  • 3 stroke lengths available: 50mm, 100mm, 150mm
  • Lightweight and compact design
  • Long-term maintenance-free operation with standard K1TM lubrication units
  • Standard low-temperature chrome plating on rails and sliders prevents corrosion under ordinary usage and storage conditions 
  • High-accuracy and high-stiffness
  • 1 mm and 2 mm lead ball screw versions available
  • 2 accuracy grades available: H (standard) and P (high precision)
  • Motor brackets, covers and sensor accessories available.

iconE3416 Miniature Monocarrier MCM02-03 Catalog

Monocarrier MCM Standard Mechanical Series

The sophisticated multi-functional electric actuator represents a successful combination of NSK ball screws (for feeding) and linear guides (for guide way), which are internationally recognized for reliability. This combination dramatically reduces design and assembly loads of automation devices, total costs and line operation time, while achieving high precision, high speed, and lower costs. Long-term, maintenance-free operation was achieved by installing the NSK K1® lubrication unit, which contributed to reduced piping for lubrication and maintenance cost, and improved machine economization, with full consideration for the global environment. more...

Mechanical Series

Monocarrier is a standard-setting product developed to meet accelerating industry needs for labor saving, energy conservation and factory automation.The landmark multifunctional actuator dramatically reduces design and assembly loads due to the unique construction of the Monocarrier, which was developed as a key component for automation device mechanical parts.

NSK K1 is applied to the Monocarrier guide and ball screw parts. In combination with grease, the MCM series meets demand for long-term and maintenance-free operation. It incorporates porous synthetic resin, a newly developed material which retains a generous volume of lubricating oil; the continuous release of oil reinforces overall lubricating performance. In addition, the maintenance free NSK K1® lubrication unit is equipped as a standard feature and surface-treatment is included in standard specifications.

Production systems adopting integrated automation devices are currently coming in line in every area of the industry. This production system is well suited for a variety of applications, including automatic assembly, inspection, packaging and transportation and will be further promoted.

Monocarrier was developed as a key component of automation device mechanical parts, the core of this production system. The sophisticated multi-functional electric actuator represents a successful combination of NSK ball screws (for feeding) and linear guides (for guide way), which are internationally recognized for reliability.

This combination dramatically reduces design and assembly loads of automation devices, total costs and line operation time, while achieving high precision, high speed, and lower costs.

Long-term, maintenance-free operation was achieved by installing the NSK K1® lubrication unit, which contributed to reduced piping for lubrication and maintenance cost, and improved machine economization, with full consideration for the global environment.

The MCM Monocarrier exhibits outstanding efficiency with NSK K1, an effective lubricating unit, incorporating light-weight, compact Monocarrier designed for easy installation, with surface treatment on rail and slider for maintaining optimum performance.

  • Long-term, maintenance-free usage:In mechanical environments where lubrication is difficult to apply, long-term running efficiency is maintained byusing the NSK K1 in combination with grease. Ideal for manufacturing equipment for automobile parts processing, etc.
  • Prevention of oil-related environmental pollution: In locations where oil greatly affects the environment, or in mechanisms with severe hygienic restrictions, sufficient lubrication is provided using the NSK K1 in combination with minimal grease. Ideal for food processing, medical equipment, manufacturing devices for liquid crystal displays and semi-conductors, etc.
  • Excellent corrosion resistance capability: Low-temperature black chrome plating on rail and slider as a standard feature prevents corrosion under ordinary storage and usage conditions.Ideal for FA lines.
  • Simplified design and installation: The main base, ball screw, and support bearings are fully integrated into one unit. Combining these four parts brings considerable savings in man-hours for design and time and effort for installation. (Installation dimensions are identical to the existing Monocarrier.)
  • Lightweight and compact siz: Integration minimizes cross sectional size, while reducing weight by one-half of the existing combination type, mono-axis table.
  • High rigidity: Although light in weight, the main base is concave to resist bending, and can be handled even with cantilever support. Elastic deformation of the linear guide bearing is small due to preload.
  • Longer operating life: Rolling bearings contribute to less wear and longer operation.
  • Smooth movement and high precision: Rolling bearings contribute to less friction and higher positioning accuracy.
  • Four-directional iso-load: Contact angle of guide bearing is set at 45° to provide equivalent support for vertical and lateral loads.
  • Double slider: Double slider specifications for improving moment load capacity or straightness are also available.



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Maintenance-free Series Monocarrier

Compact actuator combines ball screws and linear motion bearings. Clean lubricating unit protects the environment while providing low-cost, maintenance-free operation.The compact actuator combines ball screws and linear guide bearings, dramatically reducing the work load for design, assembly, and adjustments due to its single unit construction more...

iconMaintenance-Free Monocarrier Product Catalog

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NSK: Maintenance-free Series Monocarrier

The compact actuator combines ball screws and linear guide bearings, dramatically reducing the work load for design, assembly, and adjustments due to its single unit construction.

Five types are available:

  • 03 (rail width: 34 mm)
  • 05 (rail width: 48.6 mm)
  • 06 (rail width: 58 mm)
  • 08 (rail width: 80 mm)
  • 10 (rail width: 100 mm)
Product Highlights
  • Maintenance-free
  • The standard carrier is equipped with the NSK K1™ lubrication unit. No additional lubricating is required for up to five years or 10,000 km
  • Corrosion resistance
  • Standard low-temperature chrome plating on rails and sliders prevents corrosion under ordinary storage and usage conditions
  • Simplified design and installation
  • A combination of main bases, ball screw nuts, and support bearings fully integrated into a single unit dramatically reduces design and installation work
  • Lightweight and compact
  • Integration minimizes cross-sectional size while reducing weight by one half, compared to conventional combination mono-axis tables

High-Rigidity Type MCH Monocarrier

MCH Monocarriers feature improved rigidity, making them suitable for cantilever beams. Furthermore, the long-term, maintenance-free NSK K1® lubrication units are built-in as a standard feature, preventing oil contamination of the operating environment. more...

iconMonocarrier High-Rigidity Type MCH Monocarrier Product Catalog

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High-Rigidity Type MCH Monocarrier

This new product brings powerful features to the unparalleled Maintenance-free Series Monocarrier, a series which resulted from NSK’s extensive development efforts. Monocarriers are light, compact single axis actuators combining ball screws, linear guides, and supporting bearings.

In addition to simplified design and installation, MCH Monocarriers feature improved rigidity, making them suitable for cantilever beams. Furthermore, the long-term, maintenance-free NSK K1® lubrication units are built-in as a standard feature, preventing oil contamination of the operating environment.

MCH Monocarriers represent an important new addition to the MCM series, providing users with diverse functionality for systems solutions.

  • Enhanced rail rigidity: While MCM predecessors focused on light weight, MCH Monocarriers provide improved rail rigidity, which is now available for cantilever beams. MCH Monocarriers are three to eight times more rigid than conventional products agains vertical load.
  • Long-term, maintenance-free usage: The combined use of the NSK K1 with grease maintains long-term operating efficiency in mechanical environments where lubrication is difficult to apply.
  • Preventing oil contamination of operating environment: Using NSK K1 with minimal grease ensures sufficient lubrication, even in oil-sensitive locations and in mechanical facilities with sever hygienic restrictions.
  • Excellent corrosion resistance: Low-temperature black chrome treatment on rail and slider as a standard feature prevents corrosion under ordinary storage and usage conditions. Optional low-temperature chrome flouride treatment further improves anti-corrosion properties.
  • LED-hall element equipped sensors: The incorporation of LED into NSK's compact, original hall element type sensor facilitates performance verification. The adoption of an exclusive sensor rail allows sensors to be freely mounted at any position.
  • Simplified design and installation: Rail, ball screws, and support bearings are fully integrated into a single unit to dramatically reduce the time and effort required for design and installation. In addition, standard Shell AV2 grease is prepacked for shipment so that MCH Monocarriers are ready to operate after a break-in period.
  • Enhanced dust-proof capability: Upper seals are mounted as a standard addition to conventional side seals, preventing the entrance of foreign matter from the upper side.
  • Compactness: Product design fully utilizes internal cross-sectional parts to reduce actuator size while achieving a high level of rigidity for cantilever beam.
  • Longer operating life: Actuators incorprate NSK's exclusive, world-leading rolling bearing technologies using ball screws and linear guides, which contribute to less wear and longer accuracy and fatigue life.
  • Four-directional iso-load: Contact angle of guide bearings is set at 45 degrees to provide equivalent support for vertical and lateral loads.
  • Double slider: Double slider specifications are also available to improve moment load capacity and straightness.

Motors

Megatorque Motors

The Megatorque Motor produces high torque and enables a load directly coupled with the motor to be driven without using a reduction gear more...

iconMegatorque Motors Product Catalog

NSK: Megatorque Motors

The Megatorque Motor produces high torque and enables a load directly coupled with the motor to be driven without using a reduction gear.

  • Direct Drive

    Each motor has a built-in rotation position detector enabling it to form a fully closed loop servo.

  • High Rotational Positioning Accuracy

    The Megatorque motor has a high resolution resolver featuring 614400 pulses/revolution (except for the RS series 4"motor, SS Series Motor and JS0002FN001 in JS Series). The megatorque Motor can drive a directly coupled load without using reduction gears, featuring repeatability of ±2.1arc seconds for a rigid load. (The repeatability of the 4"Megatorquemotor and JS0002FN001 is ±3.2arc seconds, and that of SS Series motor is ±2.7arc seconds.)

  • High Rate of Acceleration and Reduced Cycle Time

    High torque allows quick acceleration and deceleration, resulting in reduced cycle time.

  • High Reliability

    Simple structure of a brushless motor with no permanent magnet and the use of a high performance, rigid, grease filled bearing offer high reliability and maintenance free operation.

  • High Rigidity

  • A heavy duty crossed roller bearing allows robot arms or other heavy loads to be directly coupled with the rotor without using external support bearings. As reduction gears are unnecessary, a simple mechanism can be achieved.

  • Hollow Structure

    The motor has hollow space on the center part for wiring and plumbing.

  • Variety of Selections

    In addition to the standard product type, a wide variety of products are available such as Waterproof motor type, Motors with brakes, Absolute Positioning type, Precision Motor type, SS Series, economical YS Motor Series and compact JS Series.

Special Driver Units:

  • Precision and multi-function digital servo:

    The EM, high power EP and ESA driver units, which drive and control Megatorque motors, incorporate a 16-bit microprocessor for complete digital servo control. It features a vatiety of functions providing a high performance, multifunction and easy-to-use controller. Especially the compact ESA driver unit has a built-in autotuning function to select the optismum senvo gain for the load.

  • Variety of Command Inputs:

    The driver units have a variety of I/O interfaces for connection with personal computers, NC machines, Programmable logic controllers(PLC), etc. It can accept a variety of input commands issued by the user (such as BCD serial signals,pulse train signals, RS-232C communication commands, andso forth).

  • Easy and Variety of Operations:

    Position, velocity and torque mode selection and writing of parameters and programs may be executed in real time through the RS-232C interface. The use of the program execution method allows positioning without user 's controller.

  • Easy maintenance:

    An error indicator LED on the front panel allows easy operation check. The I/O and alarm status may be read out through the RS-232C interface.

  • Compact reliable special IC's and multi-layer boards are used for down-sizing and improved reliability of the driver unit.

  • Various Options:

    Available in a wide selection of options such as driver units for Absolute Positioning type, EM Super Series with electronic cams, memory cards and single-axis NC control functions, etc.

Megathrust Motors

To meet a wide variety of market needs ranging from single-axis robots to high precision X-Y tables, various types of Megathrust Motors are available more...

iconMegathrust Motors Product Catalog



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Product Highlights

To meet a wide variety of market needs ranging from single-axis robots to high precision X-Y tables, various types of Megathrust Motors are available.

  • Low price

    30% Lower in price than our previous models with EM Driver Unit

  • High speed, high accuracy

    Maximum speed; 1800mm/sec. Repeatability; ±1 mm

  • Free from step-out

    Incorporates a position detector(closed loop feedback control) (Rexolver or Linear Scale)

    • Compatible with a long stroke shape.

  • Multi-slider

    Can simultaneously control two or more sliders located on one axis.

  • Clean

    Rotating elements, such as a ballscrew, are not used so the system is free from problems such as splashing and flinging of lubricant.

  • High perfomance driver unit

    A variety of driver units are available ranging from the low priced ESA to the high-performance EM Super.


Motion
    Motion Control
  • Single and Multi-Axis Controllers
  • Servo & Stepper Motors
  • Operator Interfaces & PCs
Positioning
    Positioning Systems
  • Precision Positioning
  • High-Speed Positioning
  • Gantries, Robots & Actuators
  • Gearboxes, Ball Screws & Rails
Machine
    Machine Vision
  • Part Inspection
  • Vision Guided Motion
  • Intelligent Cameras, Lights & Lenses
  • Barcode Scanners
Aluminum
Custom
    Custom Machines
  • Turn-key Machine Design/Build
  • Sub-Assembly & Contract Manufacturing
  • Assembly, Dispensing, Pick & Place Machines
Info
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