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AST20 2025

Category: Metric Series





(Qty)
  1. Lubricate the bearing prior to installation.
  2. Please review the technical information on the requirements for the mating shaft.
Attributes Values
Bearing Type straight
Shaft Dia., Nominal (d) 20.0000
Shaft Size (ds) 20 +0 / -0/033
Housing Bore Dia. (Dh) 23 +0.021 / -0
Bearing Outside Diameter, Nominal(Do) 23.000
Bearing Outside Diameter Tolerance (Do tol.) 23.075 / 23.035
Bearing Bore after Mounting (di) 20.131 / 20.050
Average Clearance (Cd) 0.1070
Wall Thickness (S3) 1.460
Bearing Length, Nominal (B) 25.000
Bearing Length Tolerance (B tol.) +0 / -0.40
OD Chamfer Length (Co) 0.700
ID Chamfer Angle (B deg.) 30
ID Chamfer Length (Ci) 0.500
Lube Hole Dia. (dl) 4.000
Material Carbon steel shell with POM plastic liner
Additional Information
General
Nomenclature
Material
Tolerances and Precision
Internal Clearance
Lubrication
Fitting and Mounting
Load and Life Calculation Information
eDrawings file (.ePRT, eASM)
The information in AST Bearings herein is provided for informational purposes only. This information should not be relied upon for design, development or other purposes.
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