(dimensions in mm)

Bearing Type - straight

Shaft Dia., Nominal (d) - 18.0000

Shaft Size (ds) - 18 -0.016 / -0.034

Housing Bore Dia. (Dh) - 20 +0.021 / +0

Bearing Outside Diameter, Nominal(Do) - 20.000

Bearing Outside Diameter Tolerance (Do tol.) - 20.075 / 20.035

Bearing Bore after Mounting (di) - 18.061 / 17.99

Average Clearance (Cd) - 0.0510

Wall Thickness (S3) - 1.005

Bearing Length, Nominal (B) - 12.000

Bearing Length Tolerance (B tol.) - +0 / -0.30

OD Chamfer Length (Co) - 0.600

ID Chamfer Angle (B deg.) - 30

ID Chamfer Length (Ci) - 0.300

Material - Steel shell with PTFE / Polymer Fiber lining

This bearing can be used dry or with lubrication.

Please review the technical information on the requirements for the mating shaft.

• Model Number: AST40 1812
• Inner Diameter：18mm Outer Diameter：20mm Width：mm
• Type：Plain Bearings
• Update date：2025-12-15
• Application:switch,dynamic blood pressure,electrostatic protection,forming machine,position switch,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Wire grinder,Broadcasting System,power tools,car shock absorber,Textile Accessories
• Similar models:AST AST2024050 AST AST4022080 AST AST650F354540 AST AST401610 AST AST40F18200 INA EGBZ1210-E40 INA EGB2015-E40-B AST AST4014080 INA EGB8060-E40-B SKF PCM556040E
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