tongil ballscrew catalog (english)

Download TONGIL Ballscrew catalog (English)

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Our company was the first Korean company to successfully establish a technical partnership with a leading Japanese ball screw manufacturer. We did this with KOYO Machinery and we have been producing components and ball screws to Koyo’s exacting standards since 2008. Today, TIC is the leading manufacturer of ball screws in Korea with over 60% market share in high precision ball screws among domestic manufacturers. TIC is also the leading player in the market for Universal Cylindrical Grinding Machines in particular, both manual and NC type, with each holding 60% of domestic market share from the early 2000’s. Our machines are well recognized for excellent quality which our customers and users attribute to our expertise in assembly skills and use of high quality ballscrew components. Please let us know what way we could be of service to your company in providing quality ball screws.

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  • 977

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  • High-tech equipment system of TIC produces the best ball screw with high technical skills

    In order to keep the whole temperature and humidityconstantly in the main production line, 4 thermo-hygrostats are automatically operated, therefore the production of the goods with high precision is available minimizing the error due to difference of temperature and humidity such as bending under the process, change of length, etc..

    NUT Form Measuring Instrument

    Shaft Laser Measuring Instrument

    9

    Equipment System

    Shaft proportional Measuring instrument

    Torque Measuring instrument

    NUT Thread Internal Grinding Machine (Matrix)

    Shaft Cylindrical Grinding Machine (Kondo)

    Shaft Thread External Grinding Machine (Mitsuisiki)

    Quality System

    MainProduction Equipment

  • This tester helps to solve the precision and noise problems which happen to ball screws and analyze the problems through computers to find out the causes of defects. It is an important piece of testing equipment which TIC has developed on its own.

    This is a device to secure customers reliability by improving feeding accuracy of NC machine tools measuring the rigidity of ball screws in axial direction and conducting optimum design to minimize displacement by cutting forces.

    rigidity tester

    Ball screw total tester

    displacement sensor

    10 11

    Introducing new Ball Screw

    Quality Assurance Facilities

    Equipment System

    How to read the measured data

    Average-Range

    Upper limit

    Actual value

    Lower limit

    Base line

    Rigidity

  • - Low noise and good sound quality achieved improved ball circulation structure (Structure to reduce ball impulsive sound)- Noise reduction achieved by change of material (Adoption of material with low impulsive sound)- Higher precision of ball track shape (Improvement in track shape and surface roughress)

    - Written in Page 113 -

    Noise comparison between conventional and new products

    Circulation in tangential directions

    Circulation in lead angle directions

    Contribution to comfortable environmentFirst step toward production of low-noise machines and equipment

    Features

    Construction Performance

    10 11

    Introducing new Ball Screw

    High-speed Low-Noise Ball Screws (YEF Type)

    Shaft diameter

    Lead

    Steel diameter

    Lubricants

    No. of winding

    Noise Assessment distance between microphone and ball screwNoise reduction effectiveness increases as the speed increases

    New ProductsComparison Products

    Rotation speed of shaft

  • - Low noise and anacceptable running sound- The use of ball cage reducing the fluctuation in dyramic torque, thus to achieve smooth motion- Grease pockets to be achieving long-term mainte nance-free operation

    High speed ball screw with caged

    Low noise, Low torque frictionLong-term, maintenace free operation

    12

    Introducing new Ball Screw

    13

    Introducing new Ball Screw

    Features

    Construction

    Performance

    Preload torquePreload torque

    Preload torque

    Standard products

    Retainer applied products

    Conventional products

    New products

    Features 1. Noise reduction effectiveness increases as the speed increases. 2. About 6 dB less than the conventional tube. (3,500 RPM)

    Circulation in tangential directions

    comparative circulation of friction torque noise test data

    Circulation in tangential directions

    Circulation in lead angle directions

    Circulation in lead angle directions

  • High-speed Precision Ball with Air Cooling sustem

    Actions against thermal displacement by friction

    Low friction/low heat dissipation structure

    - Built-in shaft/unit air cooling mechanis mand high-precision feed with minimal environmental impact- Low noise and good sound quality achieved improved ball circulation structure (Structure to reduce ball impulsive sound)- Higher precision of ball track shape (Improvement in track shape and surface roughness)- Maximum feed speed : 60mm/min

    12

    Introducing new Ball Screw

    13

    Introducing new Ball Screw

    Features

    Construction

    Cooling data

    T.P. Model no.

    Shaft diameter

    Lead

    Number of coils

    Max-speed

    Max-acceleration

    Weight of moving part

    windings

    General products

    Air cooling products

    Coil and air filled products

    Time

    Test Conditions

    T.P. Model no.

    Shaft diameter

    Lead

    Number of coils

    Max-speed

    Max-acceleration

    Weight of moving part

    windings

    General products

    Air cooling products

    Coil and air filled products

    Time

    Temperature increase data (Measuring position : nut)

    Air cooling structure

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    TIC Precision Ball Screws :Types, Series, and Construction

    15

    TIC Precision Ball Screws :Types, Series, and Construction

    Table 1.1 TIC Precision Ball Sc rews : Types, Series, and Construction

    Series

    1. T Series(Tube type : externalball circulation)

    A tube is provided in the nut. Steel balls, rolling in the grooves between the shaft and nut, enter the tube and roll down. They then return to the groove between the shaft and nut. This series fits the widest variety of applications among the series, and is suitable for standard manufacture.The nut outer diameter is determined such that the components through which balls circulate (tube and holder) cannot move beyond the nut circumference.The nut outer diameter which is smaller then tube and holder position is also available on request. Deflectors are provided inside the nut. Steel balls, rolling

    Deflectors are provided inside the nut. Steel balls, rolling in the grooves between the shaft and nut, move along the grooves of deflector. They then return to the groove between the shaft and nut, passing through the shaft groove rand. Since steel balls circulate inside the nut, the nut outer diametercan be small. The deflectors are placed at equally spaced on the nut outsidesurface, so the nut can retain good balance.

    The L series is characterized by a large lead. Precise nut positioning is possible at high speed. They can be classified into the tube type and end cap type, according to the steel ball circulation system.

    It is characterized by high speeds and clean and clear sounds through smooth rotation by making the rotation direction of the steel ball consistent with the lead angle. It is also possible to make the same rigidity of products with the internal circulation type and compact structure, which is 30% more compact than conventional products.

    R series represent form rolling ball screw and the type use a tube type.Tube inserting method can be divided into 4 kinds including a dumping type where insert completely into nut outer diameter and a projecting type where project to outside

    2. D Series(Deflector type : internalball circulation)

    3. L Series(Tube type)

    4. E Series(Endcap type)

    5. R Series(Rolling Ball Screw)

    Construction

  • 14

    TIC Precision Ball Screws :Types, Series, and Construction

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    TIC Precision Ball Screws :Types, Series, and Construction

    TFN Type(Flange, Double-nut)TSF Type(No preload, Flange, Single-nut)TFP Type(Preload, Flange, Single-nut)TFF Type(Flange-to-flange, Double-nut)TNN Type(No flange, Double-nut)TSN Type(No preload, Single-nut)TPN Type(Preload, Single-nut)YTF Type(Preloaded with Oversize Balls)

    DFN Type(Flange, Double-nut)DSF Type(No preload, Flange, Single-nut)DFP Type(Preload, Flange, Single-nut)DFF Type(Flange-to-flange, Double-nut)DNN Type(No flange, Double-nut)DSN Type(No preload, Single-nut)DPN Type(Preload, Single-nut)YDF Type(Preloaded with oversize balls)

    LTF Type(Tube type, No preload, Flange)LTP Type(Tube type, Preload, Flange)

    TBSF Type(Tube Built-in Flange Nut)TNSF Type(Outer Diameter Small Flange Nut)TMS Type(Triangle Screw Type Nut)TRS Type(Square Shape Nut)

    YEF Type(Preloaded with Oversize Balls)H-ESH Type(No preload)

    Type Page

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    TIC Precision Ball Screw Features

    17

    TIC Precision Ball Screw Specifications

    High transfer efficency.

    Ball screws, unlike slide screws, produce extremelylow friction. They achieve high transfer efficiency,while maintaining running torque at one-third that ofslide screws. Great thrust load can be obtained atsmall torque.

    Figs. 2.1 and 2.2 show ball screw transfer efficiency.Ball screws convert rotary motion into linear motionin normal use, but can also be used to convertlinear motion into rotary motion(reverse action).

    Fine travel capabilities.

    The rolling contract of ball screws contributesextremely low starting friction. They do not produceany stick slip, to which slide screws are liable.Ball screws can be controlled precisely is a finetravel.

    High rigidity with preload.

    High rigidity can be achieved by using a preloadwith two nuts, or by using a preload with oversizeballs in single nut, which eliminates axial clearance.

    Long service life.

    Steel balls roll on heat-treated or hardened groovesis extremely low, and high precision can bemaintained over a long period of time.Service life can be estimated by calculation.

    Easy maintenance.

    Unlike slide screws, ball screws do not requirefrequent lubrication. Under normal operatingconditions, they operate satisfactorily with anoccasional supply of grease or lubrication oil.

    High reliability T

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