280TAC29D+L

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

280TAC29D+L

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

Grouped product items
Parts Number
280TAC29DMYPN7+LC6
280TAC29DMYPN7+LC7
280TAC29DMYPN7+LC8

Designations

280TAC29D+L

Boundary Dimensions

d 280 mm Bore diameter
D 380 mm Outside diameter
T 120 mm Inner Ring Width
C 60 mm Outer Ring Width
r(min.) 2.1 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Ca 400 kN Basic Dynamic Load Rating
C0a 1470 kN Basic Static Load Rating

Speeds

Grease 1400 min-1 Limiting Speed (C6-Preload)
Oil (Oil-air) 1600 min-1 Limiting Speed (C6-Preload)
Grease 1200 min-1 Limiting Speed (C7-Preload)
Oil (Oil-air) 1400 min-1 Limiting Speed (C7-Preload)
Grease 1000 min-1 Limiting Speed (C8-Preload)
Oil (Oil-air) 1200 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 320 mm Diameter of Shaft Abutment
Da 364 mm Diameter of Housing Abutment

Performance

Pa 909 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
C6 1239N 1754N/μm -3μm
C7 9313N 3451N/μm -15μm
C8 13947N 3954N/μm -20μm

Additional information

158 g/brg Recommended Grease Quantities

Mass

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