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Microscope Plain Bearing Bush , 20 X 25 mm Aluminum Stepped Linear Bushing Bearings

Categories Plain Bearing Bush
Brand Name: VDL
Model Number: BH2025
Certification: ISO
Place of Origin: China
MOQ: Negotiation
Price: USD0.05 - 0.15
Payment Terms: L/C, T/T, Western Union , Paypal
Supply Ability: 300,000 PCS Each Month
Delivery Time: 30 Days
Packaging Details: 2000 PCS in bulk each carton with dimension 20 X 22 X 25 cm , 500 cartons for a 20ft container .
Material: Aluminum
Property Class: 5052
Finish: Oxidation
Color: Black
Hardness: HV13
Roughness: Ra2.0
Standard: ISO
Specification: Metric
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    Microscope Plain Bearing Bush , 20 X 25 mm Aluminum Stepped Linear Bushing Bearings


    Microscope Plain Bearing Bush , 20 X 25 mm Aluminum Stepped Linear Bushing Bearings


    Basic description


    Aluminum linear bushing is black oxidized with bright surface treatment , stepped sections and inside threads that to connect threaded part , upper blank hole is used to supporting shaft pin .


    Material

    Knurled bush is made of aluminum 5052


    Finish

    Black oxidation


    Specification


    Length25
    Outside diameter20
    Inside diameter15
    Thickness2.5
    ThreadM16
    Chamfer0.5 x 45°

    Unit : mm


    Tolerance


    Normal tolerances are ±0.1 mm , and ISO 2768 for unmarked tolerances with level f ,m etc .


    Linear tolerance


    Level0.5-0.33-66-3030-120120-400400-10001000-2000
    f±0.05±0.05±0.1±0.15±0.2±0.3±0.5
    m±0.1±0.1±0.2±0.3±0.5±0.8±1.2
    c±0.2±0.3±0.5±0.8±1.2±2±3
    v-±0.5±1±1.5±2.5±4±6

    Unit : mm


    Verticality tolerances


    Level0-100100-300300-10001000-3000
    H0.20.30.40.5
    K0.40.60.81
    L0.611.52

    Flatness tolerance


    Level0-1010-3030-100100-300300-1000
    H0.020.060.10.20.3
    K0.050.10.20.40.6
    L0.10.20.40.81.2

    Applications


    Aluminum stepped bushing is used to precise Microscope.


    Features


    ★ Bright surface with black oxidation

    ★ No burrs and sharp edges

    ★ Resistant corrosion

    ★ Light weight and small volume

    ★ Hard material and wear resistance

    ★ Strict tolerances

    ★ High precision


    Mechanical Property


    Tensile strength σb (MPa)200
    Yield Strength σs (MPa)70
    Elongation δ 0.2 (%)5

    Physical Performance


    Fusing point(℃ )550
    Specific heat capacity(0~100℃,KJ·kg-1K-1)0.083
    Heat conductivity(W·m-1·K-1)35
    Resistivity(20℃,10-6Ω·m)0.05

    Chemical Elements


    CuZnMgFeMnCrSiAl
    0.10.12.50.40.10.20.25balance

    Packing


    ① Packed in poly bag , one piece each bag .


    ② Packed in tissue paper wrapped


    ③ Customized package from you


    Bush materials we provide


    We provide different materials for different bushes request , normal materials as following


    Stainless steel : SUS 201 , SUS303 , SUS 304 ,SUS 316 , SUS 416 ,SUS 430.


    Carbon steel : 1008 , 1010 , 1018 , 1022 , 1035 , 1045


    Aluminum : 2024 , 6061


    Brass : CuZn35 , CuZn37 , CuZn40 , CuZn37Pb1 and CuZn39Pb1


    Copper : C11000 , C31000


    Please contact us for more information about bushes via email for phone .

    Product Tags:

    bearing bushings

      

    metric bushings

      
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