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ZWZ 7921C DB DF DT


Boundary Dimensions
d 105 mm Bore diameter
D 145 mm Outside diameter
B 20 mm Width
r(min.) 1.1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension
Basic Load Ratings
Cr 64.5 kN Basic Dynamic Load Rating
C0r 57.0 kN Basic Static Load Rating
Speeds
Grease 9200 min-1 Limiting Speed
Oil (Oil-air) 14000 min-1 Limiting Speed
Dimensions
C: 15° Contact Angle
a 26.7 mm Effective Load Center
Abutment and Fillet Dimensions
da(min.) 112 mm Diameter of Shaft Abutment
Da(max.) 138 mm Diameter of Housing Abutment
Db(max.) 140 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.6 mm Radius of Shaft or Housing Fillet
Performance
Pa 34.5 kN Permissible Axial Load
Calculation factors
f0 16.6 Factor
Preload,Rigidity(DB and DF arrangement)
Preload Axial Rigidity Measured axial clearance
EL 194N 86N/μm -5μm
L 396N 116N/μm -13μm
M 890N 167N/μm -27μm
H 1791N 235N/μm -45μm
Additional information
4.8 g/brg Recommended Grease Quantities
Mass
0.831 kg Mass(approx.)

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