1>Bearing bar pitch:30,40,60mm
2>Cross bar pitch;50,100mm
3>Plain,Serrated,I-shape
4>Hot-dipped galvanized,Painted,Untrea
The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.
2) Bearing Bar Pitch (center to center):
12.5, 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended,
America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4),(19-w-2) and so on.>
3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.
4) Material:
5) Surface Treatment:
6) Steel grating standards:
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Type
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Welded steel grating, pressure-locked, socket-welding |
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Steel flat size
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20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5……45×5mm
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Beraing bar pitch
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12.5,15,20,25,30,35,40,50mm
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Cross bar pitch
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38,50,80,100mm
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material
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Low carbon steel, stainless steel, aluminium |
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Surface treatment
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Untreated, hot galvanized, painted |
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Standards
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China: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS 1657-1985
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