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

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

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

Product Details:
Place of Origin: China
Brand Name: VDL
Certification: ISO
Model Number: BH2025
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: USD0.05 - 0.15
Packaging Details: 2000 PCS in bulk each carton with dimension 20 X 22 X 25 cm , 500 cartons for a 20ft container .
Delivery Time: 30 Days
Payment Terms: L/C, T/T, Western Union , Paypal
Supply Ability: 300,000 PCS Each Month
Detailed Product Description
Material: Aluminum Property Class: 5052
Finish: Oxidation Color: Black
Hardness: HV13 Roughness: Ra2.0
Standard: ISO Specification: Metric
High Light:

bearing bushings

,

metric bushings

 

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

 

Length 25
Outside diameter 20
Inside diameter 15
Thickness 2.5
Thread M16
Chamfer 0.5 x 45°

Unit : mm

 

Tolerance

 

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

 

Linear tolerance

 

Level 0.5-0.3 3-6 6-30 30-120 120-400 400-1000 1000-2000
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

 

Level 0-100 100-300 300-1000 1000-3000
H 0.2 0.3 0.4 0.5
K 0.4 0.6 0.8 1
L 0.6 1 1.5 2

 

Flatness tolerance

 

Level 0-10 10-30 30-100 100-300 300-1000
H 0.02 0.06 0.1 0.2 0.3
K 0.05 0.1 0.2 0.4 0.6
L 0.1 0.2 0.4 0.8 1.2

 

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

 

Cu Zn Mg Fe Mn Cr Si Al
0.1 0.1 2.5 0.4 0.1 0.2 0.25 balance

 

 

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 .

Contact Details
VEDALI HARDWARE CO., LTD

Contact Person: MR.LIN

Tel: +8613556778272

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