Bearing 639H-2RS (AST)

Ball Bearings Miniature - Instrument Series, Stainless Steel - Metric Series 639H-2RS

Bearing number : 639H-2RS

Size (mm) : 9x30x10

Brand : AST

Bore Diameter (mm) : 9

Outer Diameter (mm) : 30

Width (mm) : 10

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Sealed

Bore Dia (d) - 9.0000

Outer Dia (D) - 30.0000

Width (B) - 10.0000

Radius (min) (rs) - 0.600

Dynamic Load Rating (Cr) - 3,960

Static Load Rating (Cor) - 1,664

Max Speed (Grease) (X1000 RPM) - 24

Max Speed (Oil) (X1000 RPM) - 30

Max. Shaft Shoulder Dia. Inner (Ui) - 15.3

Min. Housing Shoulder Dia., Outer (Uo) - 25.280

Ball Qty - 7

Ball Dia (Dw) - 4.7620

Weight (g) - 37.10

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 light contact rubber seals = (2RU), or with a single light contact rubber seal = (RU)

Designation

Bore Dia, mm

Outer Dia, mm: