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H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing

    Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
     
    Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
    • Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
    • Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
    • Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
    • Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers
    • Buy cheap H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing from wholesalers

    H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing

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    Brand Name : MONTON
    Model Number : H7006C-2RZHQ1P4DBA
    Price : USD
    Supply Ability : 10000PCS/WEEK
    Delivery Time : 7-35 days
    Certification : ISO9001
    Payment Terms : T/T
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    H7006C2RZHQ1P4DBA High Precision Spindle angular contact ball Bearing


    Bearing Type

    Size(mm)

    Steel Balls Limit Speed(r/min)

    Ceramic Balls Limit Speed(r/min)

    Weight(kg)≈

    d

    D

    B

    r(min)

    r1(min)

    Grease Lubrication

    Steel Balls

    Ceramic Balls

    H7006C-2RZ
    30
    55
    13
    1.0
    0.30
    23500
    35000
    0.110
    0.094
    H7007C-2RZ
    35
    62
    14
    1.0
    0.30
    20500
    31000
    0.145
    0.134
    H7008C-2RZ
    40
    68
    15
    1.0
    0.30
    18500
    28000
    0.175
    0.161
    H7009C-2RZ
    45
    75
    16
    1.0
    0.30
    16700
    25000
    0.245
    0.230
    H7010C-2RZ
    50
    80
    16
    1.0
    0.30
    15000
    23000
    0.260
    0.240
    H7011C-2RZ
    55
    90
    18
    1.0
    0.30
    13800
    21000
    0.380
    0.350
    H7012C-2RZ
    60
    95
    18
    1.1
    0.60
    13000
    19000
    0.410
    0.376
    The bearings codes designation:

    The bearings matched ways as below :

    DB

    The load lines in a pair of bearings by back to back assembly are enlarging from the bearing axis. It can bear axial load in two directions and relative larger moment because of larger angular rigidity.


    DF

    The load lines in a pair of bearings by face to face assembly are convergence toward the bearing axis. It can bear axial load in two directions and smaller moment because of smaller angular rigidity.

    DT

    A pair of bearings by series a ssembly only bear axial load in one direction, but it is able to bear larger axial load related to DB and DF.

    TBT

    The tri-bearing matching TBT or TFT isobtained by increasing the same type of the bearing based on DB or DF There are higher axial and radial rigidity for TBT and TFT, so larger load can be supported.

    QBC

    The four bearing matching QBC (or QFC) is obtained by matching double set of DB (or DF) bearings. QBT (or QFT) is formed when three bearings are installed in a same direction and another one back (or face) to them.

    PBC

    Divide the five bearings into two groups of three and two bearings respectively, in which the bearings are all installed in the same direction, PBC is formed when the groups match each other by back to back and PFC by face to face. If four bearings are installed in the same direction and another one back (or face) to them, then PBT (or PFT) is formed.


    Why choose the high precision angular contact ball bearings?
    REASONSBENEFIT

    REDUCED RUN OUT (P4,P2)

    HIGH WORKPIECE ACCURACY

    HIGH SPEED

    SHORTER WORKING TIME

    BETTER SURFACE FINISHING

    LOW FRICTION

    LOW WORKING TEMPERATURE

    PRELOAD

    HIGH STIFFNESS

    How to choose the bearings series during the real application?


    MACHINEBEARING TYPEBEARING SERIES
    TURNINGHIGH LOAD70/719/72
    MILLINGHIGH LOAD70/719/72
    MACHINING CENTERHIGH SPEEDH70/H719
    HIGH SPEED MILLINGHIGH SPEED +CERAMIC BALLH70+CERAMIC BALL
    GRINDINGHIGH SPEED +CERAMIC BALLH719+CERAMIC BALL
    H718+CERAMIC BALL

    How to choose the lubrication ways?
    BEARING TYPESPEED FACTORLUBRICATION
    HIGH LOAD<1.0 MndmGrease
    >1.0 MndmOil Bath or circulation
    HIGH SPEED<1.5 MndmGrease
    >1.5 MndmOil injection or mist or air-oil
    HIGH SPEED+CERAMIC BALL<1.8 MndmGrease
    >1.8 MndmAir-oil or minimal oil lubrication

    How to calculate the speed factor


    Speed factor ndm is calculated to compare working conditions of different bearings, regardless their dimensions.

    D = outer diameter (mm)

    d = bore diameter (mm)

    n = shaft speed (rpm)

    dm = pitch diameter (mm)


    dm = 0.5x(D+d)

    ndm = dm x n


    How to calculate the grease qty?


    Q0 = 33% free space

    Q = Q0 x K [cm3]



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