Bearing SMR128-TT (AST)

Ball Bearings Miniature - Instrument Series, Stainless Steel - Metric Series SMR128-TT

Bearing number : SMR128-TT

Size (mm) : 8x12x3.5

Brand : AST

Bore Diameter (mm) : 8

Outer Diameter (mm) : 12

Width (mm) : 3,5

Bearing dimensions and specification in AST catalogue:

(dimensions in mm)

Bearing Type - Sealed

Bore Dia (d) - 8.0000

Outer Dia (D) - 12.0000

Width (B) - 3.5000

Radius (min) (rs) - 0.100

Dynamic Load Rating (Cr) - 462

Static Load Rating (Cor) - 219

Max Speed (Grease) (X1000 RPM) - 40

Max Speed (Oil) (X1000 RPM) - 48

Max. Shaft Shoulder Dia. Inner (Ui) - 9.1

Min. Housing Shoulder Dia., Outer (Uo) - 11.330

Ball Qty - 12

Ball Dia (Dw) - 1.2000

Weight (g) - 0.99

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 PTFE seals = (TT), also availble with a single PTFE seal = (T)

Designation

Bore Dia, mm

Outer Dia, mm: