YRT turntable bearing
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  • YRT turntable bearing

YRT turntable bearing

The YRT turntable bearing consists of a thrust or radial raceway, a radial shaft raceway, a thrust washer, two needle roller retainer assemblies, and a set of radial cylindrical rollers. The raceways are equipped with evenly spaced mounting screw holes. The YRT series turntable bearings feature high axial and radial load-carrying capacities, high tilting stiffness, and high precision.
  • Commodity name: YRT turntable bearing

Category to which it belongs

  • Product Description
  • Product Introduction

      The YRT turntable bearing consists of a thrust or radial seat ring, or a radial shaft ring, a thrust washer, two needle roller retainer assemblies, and a set of radial cylindrical rollers. The seat ring and shaft ring are equipped with evenly spaced mounting screw holes. The YRT series turntable bearings feature high axial and radial load-carrying capacities, high tilting stiffness, and high precision. They can be used in rotary tables, chucks, tool holders, as well as in bearing arrangements for measurement and experimental applications. The YRT series turntable bearings also place relatively high demands on the mating equipment components; during installation, it is essential to carefully control the tightening torque of the mounting screws.

    Features of YRT Turntable Bearings

      1. The YRT series rotary table bearings feature high rotational accuracy. Through optimized design and manufacturing processes, they deliver precise rotation and positioning capabilities. This makes them highly valuable in applications that require highly accurate control of rotation angles and positions, such as precision machining equipment, measuring instruments, and robots.

      2. YRT turntable bearings can accommodate changes in the relative position between the shaft and the housing caused by factors such as thermal expansion. During operation, slight variations in the relative position between the shaft and the housing may occur due to temperature fluctuations or changes in load. The YRT series turntable bearings can flexibly adapt to these changes, ensuring stable operation and reliable performance.

      3. The YRT series rotary table bearings feature high radial load-carrying capacity and can withstand heavy loads as well as impact loads. Their structural design and material selection ensure high strength and durability, enabling them to operate safely and reliably in applications with demanding load requirements, such as lifting machinery and metallurgical equipment.

      4. YRT turntable bearings have high requirements for the machining of the shaft or housing bore. To ensure proper installation and operation, YRT turntable bearings must have precisely matched dimensions and shapes with the shaft or housing bore, thereby guaranteeing optimal fit and efficient load transmission. Therefore, when selecting and installing YRT turntable bearings, it is essential to pay close attention to the compatibility and machining quality of both the shaft and the housing bore.

      5. The inner or outer ring of the YRT turntable bearing can be installed and removed separately, which is extremely convenient. This design makes the installation, maintenance, and replacement of YRT turntable bearings simpler and more efficient, saving time and labor costs while boosting work efficiency.

    Selection of YRT Turntable Bearings

      1. Load Capacity: When selecting a model of YRT turntable bearing, it is essential to consider factors such as the magnitude and direction of the load. The basic rated load can be used to determine the appropriate model of YRT turntable bearing, taking into account both the magnitude and orientation of the load.

      2. Rotational Speed: The size, model, precision, and load capacity of the bearing all affect the rotational speed of the YRT turntable bearing. Rotational speed is also a crucial factor that must be considered when selecting an YRT turntable bearing.

      3. Installation Space: Since the YRT turntable bearing is equipped with mounting holes and oil holes, its installation space is significantly smaller compared to schemes involving two or more combined bearings.

      4. Rotary Precision: For equipment with demanding requirements for bearing rotary precision, selecting YRT turntable bearings with higher precision is a better match. The YRT turntable bearings manufactured by Luoyang Boying meet the P2-level standard and essentially satisfy the rotational precision needs of precision equipment.

      5. Rigidity: When selecting YRT turntable bearings, rigidity is an important factor to consider. To prevent deformation under load, preload must be applied. Moreover, the YRT series turntable bearings employ cylindrical rollers of Class 3 as rolling elements, ensuring excellent bearing rigidity.

      6. Maintenance: Considering the frequent need to disassemble and reassemble bearings during maintenance, the integrated design of YRT turntable bearings makes installation much simpler.

    Parameter Table

    Model

    Model

    Number

    External dimensions boundary dimensions

    Basic load rating (kN)

    Maximum Speed (Grease)

    Limiting

    speed (grease)

    Weight

    Weight

    Kilogram

    Axial load

    Radial load

    d

    D

    H

    H1

    C

    D1

    J

    J1

    Dynamic

    Static

    Dynamic

    Static

    Unit: mm

    Ca

    Coa

    Cr

    Core

    r/min

    YRT50

    50

    126

    30

    20

    10

    105

    63

    116

    38

    158

    28.5

    49.5

    440

    1.6

    YRT80

    80

    146

    35

    23.35

    12

    130

    92

    138

    56

    255

    42.5

    100

    530

    2.4

    YRT100

    100

    185

    38

    25

    12

    160

    112

    170

    76.5

    415

    47.5

    120

    430

    4

    YRT120

    120

    210

    40

    26

    12

    184

    135

    195

    102

    540

    52

    143

    340

    5.3

    YRT150

    150

    240

    40

    26

    12

    214

    165

    225

    112

    630

    56

    170

    320

    6.2

    YRT180

    180

    280

    43

    29

    15

    244

    194

    260

    118

    710

    69.5

    200

    280

    7.7

    YRT200

    200

    300

    45

    30

    15

    274

    215

    285

    120

    765

    81.5

    220

    260

    9.7

    YRT260

    260

    385

    55

    36.5

    18

    345

    280

    365

    160

    1060

    93

    290

    200

    18.3

    YRT325

    325

    450

    60

    40

    20

    415

    342

    430

    275

    1930

    120

    345

    170

    25

    YRT395

    395

    525

    65

    42.5

    20

    486

    415

    505

    300

    2280

    186

    655

    140

    33

    YRT460

    460

    600

    70

    46

    22

    560

    482

    580

    355

    2800

    200

    765

    120

    45

    YRT580

    580

    750

    90

    60

    30

    700

    610

    720

    490

    4250

    228

    965

    80

    89

    YRT650

    650

    870

    122

    78

    34

    800

    680

    830

    1040

    8000

    490

    1800

    65

    170

    YRT850

    850

    1095

    124

    80.5

    37

    1018

    890

    1055

    1000

    8650

    455

    1730

    50

    253

    YRT950

    950

    1200

    132

    86

    40

    1130

    990

    1160

    1290

    11400

    530

    2040

    40

    312

    YRT1030

    1030

    1300

    145

    92.5

    40

    1215

    1075

    1255

    1380

    12000

    620

    2650

    39

    375

    Fixed-hole YRT turntable bearing model parameters

    Application areas

      1. Precision Rotary Tables: The high rotational accuracy and stability of YRT series rotary table bearings make them an ideal choice for precision rotary tables. These rotary tables are widely used in machining centers, vertical grinding machines, milling machines, and other equipment that require precise rotation.

      2. Vertical Grinding Machines: YRT turntable bearings play a crucial role in vertical grinding machines. They provide stable rotational support, making the grinding process more precise and efficient.

      3. Indexing Head: An indexing head is a device used to achieve precise angular positioning, commonly employed in workpiece machining. The high rotational accuracy and rigidity of the YRT series rotary table bearings make them crucial components in indexing heads.

      4. Gear Hobbing Machine: A gear hobbing machine is used for the manufacturing and machining of gears. The high load-carrying capacity and rotational accuracy of YRT turntable bearings make them ideally suited to provide stable support and positioning functions on gear hobbing machines.

      5. Workpiece Spindle for Gear Hobbing Machines: A gear hobbing machine is a specialized machine tool used for gear manufacturing. In such machines, YRT series turntable bearings play a crucial role in supporting the workpiece spindle. Their high load-carrying capacity and excellent stability are essential for ensuring the precision of workpiece machining.

Keywords:

YRT turntable bearing

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