(dimensions in mm)

Bearing Type - straight

Shaft Dia., Nominal (d) - 50.0000

Shaft Size (ds) - 50 +0 / -0/039

Housing Bore Dia. (Dh) - 55 +0.030 / -0

Bearing Outside Diameter, Nominal(Do) - 55.000

Bearing Outside Diameter Tolerance (Do tol.) - 55.100 / 55.055

Bearing Bore after Mounting (di) - 50.200 / 50.080

Average Clearance (Cd) - 0.1600

Wall Thickness (S3) - 2.438

Bearing Length, Nominal (B) - 30.000

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

OD Chamfer Length (Co) - 1.800

ID Chamfer Angle (B deg.) - 45

ID Chamfer Length (Ci) - 0.800

Lube Hole Dia. (dl) - 8.000

Material - Carbon steel shell with POM plastic liner

Lubricate the bearing prior to installation.

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

• Model Number: AST20 5030
• Inner Diameter：50mm Outer Diameter：55mm Width：mm
• Type：Plain Bearings
• Update date：2025-12-17
• Application:luminescent reagent,engineering machine,motor,Digital Generator,mechanical and electrical,Solenoid Valves,Industrial,Forging machine,survey accessories,surgical instruments,milling head plug
• Similar models:AST GEC420XT-2RS AST AST650F203040 NMB MBW20VCR CX TUP132.20 AST ASTB90F20090 ISO GW320 AST AST2030IB16 SKF PCM121420M INA EGF12120-E40 SKF GE20TXG3E-2LS
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  ASTEPB 1517-10	15	17		AST	Plain Bearings
  BK 1612	16	22	12	NBS	Needle Roller Bearings
  DL 14 12	14	20	12	Timken	Needle Roller Bearings
  HRT5	5			NMB	Plain Bearings
  NA4868	340	420	80	INA	Needle Roller Bearings
  NJ217E	85	150	28	CYSD	Cylindrical Roller Bearings
  212KG	60	110	22	FAF	DEEP GROOVE BALL BEARINGS
  20218	90	160	30	FAG	SPHERICAL ROLLER BEARINGS
  LS-16	2.2500	4.5000	.8750	FAG	DEEP GROOVE BALL BEARINGS
  93518	1.0000	1.3750	1.1250	BERLISS	JOURNAL ROLLER ASSEMBLIES
  JA020XPO	2.0000	2.5000	.2500	KAYDON	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  STO25DZ	25	52	16	Torrington	NEEDLE BEARINGS
  XLS-12	12.0000	16.0000	2.0000	CONSOLIDATED	DEEP GROOVE BALL BEARINGS