260TAC20D+L

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

260TAC20D+L

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

Grouped product items
Parts Number
260TAC20DMYPN7+LC6
260TAC20DMYPN7+LC7
260TAC20DMYPN7+LC8

Designations

260TAC20D+L

Boundary Dimensions

d 260 mm Bore diameter
D 400 mm Outside diameter
T 164 mm Inner Ring Width
C 82 mm Outer Ring Width
r(min.) 4 mm Chamfer Dimension
r1(min.) 1.5 mm Chamfer Dimension

Basic Load Ratings

Ca 550 kN Basic Dynamic Load Rating
C0a 1890 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.) 3 mm Radius of Shaft or Housing Fillet
rb(max.) 1.5 mm Radius of Shaft or Housing Fillet
da 316 mm Diameter of Shaft Abutment
Da 375 mm Diameter of Housing Abutment

Performance

Pa 1170 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity
C6 4232N 2461N/μm
C7 8420N 3101N/μm
C8 22437N 4315N/μm

Additional information

278 g/brg Recommended Grease Quantities

Mass

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