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| Material: | Aluminum | Property Class: | 5052 |
|---|---|---|---|
| Finish: | Oxidation | Color: | Black |
| Hardness: | HV13 | Roughness: | Ra2.0 |
| Standard: | ISO | Specification: | Metric |
| High Light: | bearing bushings,metric bushings |
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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 Person: MR.LIN
Tel: +8613556778272
| Factory Address:NO.12 HUANGHE RD ,HUANGJINAG , DONGGUAN, GD,CHINA | |
| Sales office:NO.12 HUANGHE RD ,HUANGJINAG , DONGGUAN, GD,CHINA | |
| +86-769-82601418 | |
| group1@vedali.com | |
