180TAC20X+L

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

180TAC20X+L

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

Grouped product items
Parts Number
180TAC20XMYPN7+LC6
180TAC20XMYPN7+LC7
180TAC20XMYPN7+LC8

Designations

180TAC20X+L

Boundary Dimensions

d 180 mm Bore diameter
D 280 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 355 kN Basic Dynamic Load Rating
C0a 1020 kN Basic Static Load Rating

Speeds

Grease 2000 min-1 Limiting Speed (C6-Preload)
Oil (Oil-air) 2200 min-1 Limiting Speed (C6-Preload)
Grease 1700 min-1 Limiting Speed (C7-Preload)
Oil (Oil-air) 1900 min-1 Limiting Speed (C7-Preload)
Grease 1400 min-1 Limiting Speed (C8-Preload)
Oil (Oil-air) 1600 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 220 mm Diameter of Shaft Abutment
Da 264 mm Diameter of Housing Abutment

Performance

Pa 634 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
C6 2982N 1876N/μm -8μm
C7 6811N 2476N/μm -15μm
C8 15473N 3268N/μm -27μm

Additional information

108 g/brg Recommended Grease Quantities

Mass

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