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Rulon Bearings

Schott N-SK2HT 607567.355, Optical Glass
Categories: Ceramic; Glass; Optical
Material Notes:

Information provided by SCHOTT.
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Physical PropertiesMetricEnglishComments
Density 3.55 g/cc0.128 lb/in³
 
Chemical PropertiesMetricEnglishComments
Acid Class, SR 2.22.2
Alkali Class, AR 1.01.0
Stain Resistance Class, FR 0.000.00
 
Mechanical PropertiesMetricEnglishComments
Hardness, Knoop 550550HK (0.1/20)
Modulus of Elasticity 78.0 GPa11300 ksi
Poissons Ratio 0.2630.263
Shear Modulus 30.9 GPa4480 ksiCalculated
 
Thermal PropertiesMetricEnglishComments
CTE, linear  6.00 µm/m-°C
@Temperature -30.0 - 70.0 °C		3.33 µin/in-°F
@Temperature -22.0 - 158 °F
 7.10 µm/m-°C
@Temperature 20.0 - 300 °C		3.94 µin/in-°F
@Temperature 68.0 - 572 °F
Specific Heat Capacity 0.595 J/g-°C0.142 BTU/lb-°F
Thermal Conductivity 0.776 W/m-K5.39 BTU-in/hr-ft²-°F
Transformation Temperature, Tg 659 °C1220 °F
Softening Point 823 °C1510 °Fviscosity of 107.6 cP
Annealing Point 659 °C1220 °Fviscosity of 1013 cP
 
Optical PropertiesMetricEnglishComments
Refractive Index  1.578
@Wavelength 2323.4 nm		1.578
@Wavelength 2323.4 nm
 1.583
@Wavelength 1970.1 nm		1.583
@Wavelength 1970.1 nm
 1.589
@Wavelength 1529.6 nm		1.589
@Wavelength 1529.6 nm
 1.594
@Wavelength 1060 nm		1.594
@Wavelength 1060 nm
 1.595
@Wavelength 1014 nm		1.595
@Wavelength 1014 nm
 1.598
@Wavelength 852.1 nm		1.598
@Wavelength 852.1 nm
 1.602
@Wavelength 706.5 nm		1.602
@Wavelength 706.5 nm
 1.604
@Wavelength 643.8 nm		1.604
@Wavelength 643.8 nm
 1.604
@Wavelength 656.3 nm		1.604
@Wavelength 656.3 nm
 1.605
@Wavelength 632.8 nm		1.605
@Wavelength 632.8 nm
 1.607
@Wavelength 587.6 nm		1.607
@Wavelength 587.6 nm
 1.607
@Wavelength 589.3 nm		1.607
@Wavelength 589.3 nm
 1.609
@Wavelength 546.1 nm		1.609
@Wavelength 546.1 nm
 1.614
@Wavelength 486.1 nm		1.614
@Wavelength 486.1 nm
 1.615
@Wavelength 480 nm		1.615
@Wavelength 480 nm
 1.62
@Wavelength 435.8 nm		1.62
@Wavelength 435.8 nm
 1.625
@Wavelength 404.7 nm		1.625
@Wavelength 404.7 nm
 1.633
@Wavelength 365 nm		1.633
@Wavelength 365 nm
 1.643
@Wavelength 334.1 nm		1.643
@Wavelength 334.1 nm
Abbe Number 56.3756.37ve
 56.6556.65vd
Optical Dispersion 0.0107220.010722nf - nc
 0.0108210.010821nf' - nc'
Transmission, Visible  99.1 %
@Thickness 25.0 mm,
Wavelength 436 nm		99.1 %
@Thickness 0.984 in,
Wavelength 436 nm
 99.2 %
@Thickness 25.0 mm,
Wavelength 460 nm		99.2 %
@Thickness 0.984 in,
Wavelength 460 nm
 99.2 %
@Thickness 25.0 mm,
Wavelength 420 nm		99.2 %
@Thickness 0.984 in,
Wavelength 420 nm
 99.5 %
@Thickness 25.0 mm,
Wavelength 500 nm		99.5 %
@Thickness 0.984 in,
Wavelength 500 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 660 nm		99.6 %
@Thickness 0.984 in,
Wavelength 660 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 620 nm		99.6 %
@Thickness 0.984 in,
Wavelength 620 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 436 nm		99.6 %
@Thickness 0.394 in,
Wavelength 436 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 460 nm		99.7 %
@Thickness 0.394 in,
Wavelength 460 nm
 99.7 %
@Thickness 10.0 mm,
Wavelength 420 nm		99.7 %
@Thickness 0.394 in,
Wavelength 420 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 700 nm		99.7 %
@Thickness 0.984 in,
Wavelength 700 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 546 nm		99.7 %
@Thickness 0.984 in,
Wavelength 546 nm
 99.7 %
@Thickness 25.0 mm,
Wavelength 580 nm		99.7 %
@Thickness 0.984 in,
Wavelength 580 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 500 nm		99.8 %
@Thickness 0.394 in,
Wavelength 500 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 660 nm		99.8 %
@Thickness 0.394 in,
Wavelength 660 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 620 nm		99.8 %
@Thickness 0.394 in,
Wavelength 620 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 700 nm		99.9 %
@Thickness 0.394 in,
Wavelength 700 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 546 nm		99.9 %
@Thickness 0.394 in,
Wavelength 546 nm
 99.9 %
@Thickness 10.0 mm,
Wavelength 580 nm		99.9 %
@Thickness 0.394 in,
Wavelength 580 nm
IR Transmittance  58.5 %
@Thickness 25.0 mm,
Wavelength 2500 nm		58.5 %
@Thickness 0.984 in,
Wavelength 2500 nm
 74.8 %
@Thickness 25.0 mm,
Wavelength 2325 nm		74.8 %
@Thickness 0.984 in,
Wavelength 2325 nm
 80.7 %
@Thickness 10.0 mm,
Wavelength 2500 nm		80.7 %
@Thickness 0.394 in,
Wavelength 2500 nm
 89 %
@Thickness 10.0 mm,
Wavelength 2325 nm		89 %
@Thickness 0.394 in,
Wavelength 2325 nm
 93 %
@Thickness 25.0 mm,
Wavelength 1970 nm		93 %
@Thickness 0.984 in,
Wavelength 1970 nm
 97.1 %
@Thickness 10.0 mm,
Wavelength 1970 nm		97.1 %
@Thickness 0.394 in,
Wavelength 1970 nm
 98.7 %
@Thickness 25.0 mm,
Wavelength 1530 nm		98.7 %
@Thickness 0.984 in,
Wavelength 1530 nm
 99.5 %
@Thickness 10.0 mm,
Wavelength 1530 nm		99.5 %
@Thickness 0.394 in,
Wavelength 1530 nm
 99.6 %
@Thickness 25.0 mm,
Wavelength 1060 nm		99.6 %
@Thickness 0.984 in,
Wavelength 1060 nm
 99.8 %
@Thickness 10.0 mm,
Wavelength 1060 nm		99.8 %
@Thickness 0.394 in,
Wavelength 1060 nm
UV Transmittance  1.0 %
@Thickness 10.0 mm,
Wavelength 290 nm		1.0 %
@Thickness 0.394 in,
Wavelength 290 nm
 9.2 %
@Thickness 25.0 mm,
Wavelength 310 nm		9.2 %
@Thickness 0.984 in,
Wavelength 310 nm
 13 %
@Thickness 10.0 mm,
Wavelength 300 nm		13 %
@Thickness 0.394 in,
Wavelength 300 nm
 34.6 %
@Thickness 25.0 mm,
Wavelength 320 nm		34.6 %
@Thickness 0.984 in,
Wavelength 320 nm
 38.5 %
@Thickness 10.0 mm,
Wavelength 310 nm		38.5 %
@Thickness 0.394 in,
Wavelength 310 nm
 65.4 %
@Thickness 10.0 mm,
Wavelength 320 nm		65.4 %
@Thickness 0.394 in,
Wavelength 320 nm
 70.3 %
@Thickness 25.0 mm,
Wavelength 334 nm		70.3 %
@Thickness 0.984 in,
Wavelength 334 nm
 86.9 %
@Thickness 10.0 mm,
Wavelength 334 nm		86.9 %
@Thickness 0.394 in,
Wavelength 334 nm
 89.2 %
@Thickness 25.0 mm,
Wavelength 350 nm		89.2 %
@Thickness 0.984 in,
Wavelength 350 nm
 95.5 %
@Thickness 10.0 mm,
Wavelength 350 nm		95.5 %
@Thickness 0.394 in,
Wavelength 350 nm
 95.7 %
@Thickness 25.0 mm,
Wavelength 365 nm		95.7 %
@Thickness 0.984 in,
Wavelength 365 nm
 96.8 %
@Thickness 25.0 mm,
Wavelength 370 nm		96.8 %
@Thickness 0.984 in,
Wavelength 370 nm
 98 %
@Thickness 25.0 mm,
Wavelength 380 nm		98 %
@Thickness 0.984 in,
Wavelength 380 nm
 98.3 %
@Thickness 10.0 mm,
Wavelength 365 nm		98.3 %
@Thickness 0.394 in,
Wavelength 365 nm
 98.6 %
@Thickness 25.0 mm,
Wavelength 390 nm		98.6 %
@Thickness 0.984 in,
Wavelength 390 nm
 98.7 %
@Thickness 10.0 mm,
Wavelength 370 nm		98.7 %
@Thickness 0.394 in,
Wavelength 370 nm
 99 %
@Thickness 25.0 mm,
Wavelength 400 nm		99 %
@Thickness 0.984 in,
Wavelength 400 nm
 99.1 %
@Thickness 25.0 mm,
Wavelength 405 nm		99.1 %
@Thickness 0.984 in,
Wavelength 405 nm
 99.2 %
@Thickness 10.0 mm,
Wavelength 380 nm		99.2 %
@Thickness 0.394 in,
Wavelength 380 nm
 99.4 %
@Thickness 10.0 mm,
Wavelength 390 nm		99.4 %
@Thickness 0.394 in,
Wavelength 390 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 400 nm		99.6 %
@Thickness 0.394 in,
Wavelength 400 nm
 99.6 %
@Thickness 10.0 mm,
Wavelength 405 nm		99.6 %
@Thickness 0.394 in,
Wavelength 405 nm
 
Descriptive Properties
Climatic resistance2
Phosphate resistance2.3
Stress optical coefficient2.31[10-6mm2/N]

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