220TAC20D+L

Double-Direction Angular Contact Thrust Ball Bearings (NSKTAC D Series )

220TAC20D+L

Double-Direction Angular Contact Thrust Ball Bearings (NSKTAC D Series )

Grouped product items
Parts Number
220TAC20DMYPN7+LC6
220TAC20DMYPN7+LC7
220TAC20DMYPN7+LC8

Designations

220TAC20D+L

Boundary Dimensions

d 220 mm Bore diameter
D 340 mm Outside diameter
T 144 mm Inner Ring Width
C 72 mm Outer Ring Width
r(min.) 2.1 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Ca 455 kN Basic Dynamic Load Rating
C0a 1390 kN Basic Static Load Rating

Speeds

Grease 1600 min-1 Limiting Speed (C6-Preload)
Oil (Oil-air) 1800 min-1 Limiting Speed (C6-Preload)
Grease 1400 min-1 Limiting Speed (C7-Preload)
Oil (Oil-air) 1600 min-1 Limiting Speed (C7-Preload)
Grease 1200 min-1 Limiting Speed (C8-Preload)
Oil (Oil-air) 1300 min-1 Limiting Speed (C8-Preload)

Dimensions

60° Contact Angle

Abutment and Fillet Dimensions

ra(max.) 2 mm Radius of Shaft or Housing Fillet
rb(max.) 1 mm Radius of Shaft or Housing Fillet
da 272 mm Diameter of Shaft Abutment
Da 320 mm Diameter of Housing Abutment

Performance

Pa 856 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
C6 3247N 2063N/μm -8μm
C7 4331N 2273N/μm -10μm
C8 19791N 3794N/μm -30μm

Additional information

184 g/brg Recommended Grease Quantities

Mass

39.1 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACTBB_TAC_D
NSK Product Type Super Precision Bearing
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