(dimensions in mm)

Bearing Type - metal with bronze and graphite

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 Bore after Mounting (di) - 20 +0.161 / +0.020

Average Clearance (Cd) - 0.1070

Wall Thickness (S3) - 1.460

Bearing Length, Nominal (B) - 20.000

Bearing Length Tolerance (B tol.) - +0 / -0.40

OD Chamfer Length (Co) - 0.700

ID Chamfer Angle (B deg.) - 35

ID Chamfer Length (Ci) - 0.500

This bearing can be used dry but occasional lubrication with oil is recommended.

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

• Model Number:AST850SM 2020
• Inner Diameter：20mm Outer Diameter：23mm Width：mm
• Type：Plain Bearings
• Update date：2026-01-14
• Application:surgical instruments,car,hydraulic actuator,plastic molding,magnetic elements,Optical Instruments,walking Food processing machinery and equipment,Industrial Electromechanical,stacker lift platform,Polymer,Seals
• Similar models:AST AST850SM6540 AST AST850SM1010 AST AST850BM1610 AST AST850SM3040 AST AST850BM3220 AST AST850BM1810 AST AST850BM3230 AST AST850SM9590 AST AST850BM2425 AST AST850BM6540
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