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YRTM Rotary Bearing with measuring system
  • YRTM150
  • YRTM180
  • YRTM200
  • YRTM260
  • YRTM325
  • YRTM395
  • YRTM460
  • YRTM Rotary Bearing with measuring system
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    • Description
    • Structure
    • Specification

    Axial/radial bearings with angular measuring system  YRTM series


    The measuring system can measure angles to an accuracy of a few angular seconds by non-contact, magneto-resistive means.

    Features

    Axial/radial bearings with angular measuring system comprise:

    ■ an axial/radial bearing YRTM  with a dimensional scale,an electronic measuring system and signal leads 

    The electronic measuring system comprises two measuring heads, two stacks of shims and an electronic evaluation system.The signal leads for connecting the measuring heads to the electronic evaluation system can be ordered individually in various designs. The electronic measuring system will continue to be available but should no longer be used for new designs.

    Bearings of series YRTM  correspond in mechanical terms to axial/radial bearings YRT  but are additionally fitted with a magnetic dimensional scale. The measuring system can measure angles to an accuracy of a few angular seconds by non-contact, magneto-resistive means



    Advantages of the angular measuring system

    ■ allows, due to the rigid connection to the adjacent construction very good control characteristics (control stability and dynamics)and is therefore particularly suitable for axes with torque motor drive

    ■ offers a high maximum speed of up to 16,5 m/s

    ■ operates by non-contact means and is therefore not subject to wear

    ■ carries out measurement irrespective of tilting and position

    ■ has automatically self-adjusting electronics

    ■ has a self-centring function

    ■ is unaffected by lubricants

    ■ is easy to fit, the measuring heads are easily adjustable,

    there is no need for alignment of the bearing and a separate measuring system

    ■ requires no additional parts

    – the dimensional scale and measuring heads are integrated in the bearing and adjacent construction respectively

    – the resulting space saved can be used for the machining area of the machine

    ■ does not give any problems relating to supply cables.

    The cables can be laid within the adjacent construction directly through the large bearing bore

    ■ gives savings on design envelope size and costs due tothe compact, integrated design requiring fewer components.



    This series bearings is YRT Bearings with angle measurement system,so that it can measure the bearing rotation angle more accurancy. 

    The series bearing is based on the YRT bearing; 

    It is mounted with angle measuring system on the YRT bearing, in order to accurately measure and adjust the angle of the bearing rotating and make sure the high rotation speeds. 

    Measuring system is composed of transmission chain and measuring scale. It adopts pure inductive measurement principle, so the signal, its precision and the precision of measuring is very high.And by using high protective measures, the measurement system will be not disturbed in operation from external ambience, such as Smoke and Dust, mild pollution and scratches, magnetic field. It can work reliably without too much maintenance; 

    The application scope is very wide. It can be applied to high precision rotary table and axis rotation, index head, military radar, aviation, aerospace and the field with the high accuracy of Angle rotation in the measuring and the test.



    YRTM Rotary Table Bearing with measuring system
    Bearing type Boundary Dimensions The fixing holes
    Screw connection QTY
    Connect screws holes
    Number of pitches X angle of pitches
    Axial Radial Run-out Screw tightening torque MA Basic load rating Limiting speed Bearing frictional torque Weight
    Inner ring  Outer ring Axial Radial
    d D H H1 H2 C D1 D2 dn dm F L d1 d2 a QTY d3 QTY dynamic load static load dynamic load static load
    G QTY QTY×t μm Nm Grease
     unit: mm unit: mm mm Ca Coa Cr Cor
    KN r/min Nm Kg
    YRTM150 150 240 43 26 14 12 214 215 165 225 16.5 121 7 11 6.2 32 7 33 4 M8 3 36×10° 3 14 112 630 56 170 320 10 6.2
    YRTM180 180 280 46 29 14 15 244 245 194 260 16.5 140 7 11 6.2 44 7 45 4 M8 3 48×7.5° 4 14 118 710 69.5 200 280 12 7.7
    YRTM200 200 300 47 30 15 15 274 276 215 285 16.5 152 7 11 6.2 44 7 45 4 M8 3 48×7.5° 4 14 120 765 81.5 220 260 14 9.7
    YRTM260 260 385 55 36.5 18.5 18 345 345.5 280 365 17.5 192.5 9.3 15 8.2 32 9.3 33 4 M12 3 36×10° 6 34 160 1060 93 290 200 20 18.3
    YRTM325 325 450 60 40 20 20 415 415.5 342 430 18.5 225 9.3 15 8.2 32 9.3 33 4 M12 3 36×10° 6 34 275 1930 120 345 170 40 25
    YRTM395 395 525 65 42.5 22.5 20 486 486.5 415 505 18.5 262.5 9.3 15 8.2 42 9.3 45 6 M12 3 48×7.5° 6 34 300 2280 186 655 140 55 33
    YRTM460 460 600 70 46 24 22 560 560.5 482 580 18.5 300 10 15 8.2 42 10 45 6 M12 3 48×7.5° 6 34 355 2800 200 765 120 70 45
    Luoyang Yadian Machinery Equipment Co.ltd