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Bearing 684H-2RS (AST)
Ball Bearings Miniature - Instrument Series, Stainless Steel - Metric Series 684H-2RS
Bearing number : 684H-2RS
Size (mm) : 4x9x4
Brand : AST
Bore Diameter (mm) : 4
Outer Diameter (mm) : 9
Width (mm) : 4
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Sealed
Bore Dia (d) - 4.0000
Outer Dia (D) - 9.0000
Width (B) - 4.0000
Radius (min) (rs) - 0.100
Dynamic Load Rating (Cr) - 545
Static Load Rating (Cor) - 182
Max Speed (Grease) (X1000 RPM) - 53
Max Speed (Oil) (X1000 RPM) - 63
Max. Shaft Shoulder Dia. Inner (Ui) - 5.2
Min. Housing Shoulder Dia., Outer (Uo) - 8.100
Ball Qty - 7
Ball Dia (Dw) - 1.5880
Weight (g) - 1.00
Precision - A1
Standard Clearance - K25
Material - Martensitic Stainless Steel
Also available in 52100 Chrome Steel
ABEC Grades 1, 3, 5, 7, and 9 are available. Also, the equivalent ISO classes.
Two rubber seals = (2RS), also available with a single rubber seal = (RS).
Also available with two PTFE seals = (TT), or with a single PTFE seal = (T)
Also available with two light contact rubber seals = (2RU), or with a single light contact rubber seal = (RU)
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Bore Dia, mm
Outer Dia, mm:
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